Wuz Up Fellaz!
It's been a good while since I've last logged on and gave some input. Well anyways, my last project has been a 93 4dr Blazer that I recently bought. I sold my 240SX (not children friendly!) and decided to install some of the equipment that was in the 240.
Heres a list:
2 Credence 8"s
1 USB 2080
1 USB 2150
2 Hollywood 5-1/4" component sets
1 Hollywood 4" component set
So far so good on the high end running the front doors (fabricated) off the 2080. The 8"s are running off the 2150 (of course). Power handling of the 8"s are matched perfectly with 2150. However, when in the 240 they were in .33cft sealed each with a f3 around 70hz. They worked great in that setup seeing that the 240 has a high lift of about 45. I transfer the same enclosure to the Blazer to see how they would sound in a bigger space. Not that I expected the same exact results, but what I did get was much worse than I thought. I tried another enclosure that I had laying around (10" Dayton Thruster QTC.= .8). The results was just as bad, only louder. Then I ran a few programs to rebuild a new enclosure for the Credences. A .54cft (each) ported one tuned to 44hz which is good enough for most since most material barely reaches that or below. Much, much better but still missing just a tad on the deepest low end extension on some boom tracks.
I hate to get rid of them but somehow this truck has a bad dip below 60-80hz. It's going to take a sub with with a extension down to around 30hz (vented) to get the sound I'm looking for and I refuse to get bigger subs. I love 8"s for the quality sound and relatively extemely small enclosures. I don't go for loudness just SQ. I used to have some Dayton 8"s that went that low ported and gave them to a cousin. Sounded excellent in his yukon. Man was I stupid! Well anyone know of a inexpensive 8 that has pretty low extension in a small vented? If it is 4ohm then it needs to be around 150 rms. DVC or 2ohm then around 200.
Holla!
Replies (22)
ttocs on 10/1/2005 01:49:38
8's in a hatch do not equal 8's in a big truck......... Thought about going up to a single 10? It would take about the same airspace but you would get the low end you are looking for.
swez on 10/1/2005 05:49:16
Do you have a spec sheet or link on these Credence 8" drivers? A few tweeks in box design may help a lot, depending on the T/S parameters they have. You may find better bass in a smaller "Q" box. (0.7 ) is the general target for SQ installs. However, if the Fs of these subs are well above 40 Hz, this will be difficult to get decent bass in a ported or sealed enclosure.
Depending on the sub T/S parameters, they may be great for MB drivers, but not a best choice for a sub. A single 10 or 12" sub could solve this issue, if you have the space and perhaps a small sub amp to power it.
The other option could be to drop the 8's and go to one larger sub. A 4 ohm SVC or 2+2 DVC will match your amp well in bridged or 2 channel modes.
Comments?
Swez
PS Did you try facing the subs to the rear bumper? In a Blazer, that is usually your best location, right behind the rear seats. Also, what is your biggest complaint on sound you get now?
asplundher on 10/1/2005 06:24:25
I didn't expect the same loudness from the Credences when in a bigger vehicle. I only tried the same enclosure to see how they would need to be readjusted. As far as size goes, from my experience 8"s can go down just as low or lower as a 10 in a bigger box, but not as loud. The loudness is not a problem. It's the extension that they have. The FS is 42hz, but it seems that it's going to take one that goes lower no matter what the size seeing that I already tried the 10". The 10" can do it but at the cost of over a 2cft box. I was was trying to stay on the small end.
Anyway heres the url:
http://www.credencespeakers.com/Technical%20Specs.htm
I ran these through WIN ISD and with different cft and different tunings. To get a flat response down to and below 40-ish is almost impossible. Should have kept the Dayton 8"s!
asplundher on 10/1/2005 07:08:26
Did a little bit of "soul searching" and found the newer series Dayton's (Quattro) can go in about 1 cft each with a tuning frequency of around 32 hz. I quite sure power handling will down a bit. However available frequency response in this case is more important. Pretty similiar to the old series. Only problem, I will have to get rid of the Credences and Hollywood Excursion 8"s.
Oh by the way, forgot to mention that later my cousin and I switched the old Dayton's box to his wife's 95 4dr blazer and with very good and similiar results as well. What do you think about that?
swez on 10/1/2005 12:55:58
I have used some low budget 8's from PE in a larger ported enclosure and a very modest amp with very good results in a 93 Blazer. These were 8 ohm units, poly cones and tuned to ~40 Hz. I think the net volume was a tad over 1.2 cf/sub chamber. It was for my ex-g/f's truck and she loves that added bump. That was 6 years ago... when I was still getting the hang of subs for car applications though.
The Credence 8's may work in an Extended Bass Shelf enclosure. (EBS box design) They are larger than typical sealed, take less power to get to X-max, but can give nice low end bass to subs like your Credence models. They have an Fs of 42 Hz, and probably a sharp rolloff below 60 Hz.? An EBS design could bring up your lows to some degree, if you research them well before diving in.
Other than that, Dayton makes some pretty nice subs at reasonable prices. A net 4 ohm load to a bridged amp, will give you about +3 dB of clean bass. If you go ported, that will give about +3dB more SPL bass near tuning frequency. (32-36 Hz would be nice)
Anyway, something has to be changed, to get the bass performance you desire. It could be a new box design, a different sub whatever. Personally, I would opt for a dual Alpine Type E or a single Type R sub here. Maybe you can sell the rest or hang on to them for a future project??? No matter how you slice it, got a good amp there, but the subs (box design) are holding you back.
Specs indicate these are 4 ohm SVC's. No way to get best out of that USB amp unless you tried to run it MONO at 2 ohms. It may accept that load, but I really don't recommend it.
What say you Ash?
Swez
asplundher on 10/4/2005 20:31:39
Unfortunatley, I agree! The box that I used before was tuned to the mid 30's if I remember correctly . That is why it sounded so good between the three vehicles. To get that same quality another enclosure or sub will have to be used. The enclosure route will be much cheaper of course. I ran both the new Daytons and Credences side by side on WinISD for comparison and predicted output was very close in slightly the same cft. (around 1.05cft @ 35hz). Only drawback is the output was down a few db's. But that was on both so maybe it will work as good as the old ones. I will probably try that route before crossing them off as useless in this application.
A good 10" that will get that low will have to handle the 2150 bridged and might be less cft than the two 8"s. I don't mind the airspace taken up with the 8"s since the box will be of lower profile when spread out towards the width of the truck. The height of the 10" box is what I don't like. I'm trying to keep it stealthy as possible. Vent size and mach may also present a problem as well depending on the available space in the box. This might take some careful planning.
swez on 10/5/2005 09:30:34
Win ISD is a good program for planning your sub enclosure. One thing it does not account for, is the lower octave hump we get in most mobile applications. (cabin gain effects) This hump can be substantial, (more than +10dB) below 60 Hz.
That rolloff on the plot below what, 50 Hz., will actually fill in nicely due to cabin gain effects. So really, the plot will have a positive hump of several dB between 35-60 Hz. (give or take a few Hz.)
Try the new ported box design with your present Credence subs. I have a hunch you'll come out on this one as mentioned above. It's a lot cheaper to replace a box then buying a new sub(s).
Just keep a close watch on the cone excursion at higher SPL levels. If you get cone whopping, back off on the bass in the 40 Hz range a tad.
Swez
asplundher on 10/6/2005 14:28:42
Sounds like that is going to be the plan! The SPL factor is not as important as a wider response to me. Plus it's not like you won't be no longer able to feel the bass. It just won't be quite as strong, but isn't that the normal tradeoff on any design. So I don't think it will be a need to worry afterall. Thanks!
cplkittle on 10/9/2005 23:59:57
I have never heard a bad sounding 8 in a ported box. 8 is the magic size that retains SQ even when in a larger ported box. I agree with Swez on the EBS design. I also agree with the 1.05cft @ 35hz asplunder suggested which is basically the same. and I have metered several vehicles that tested right at 16dB higher than WinISD indicated at tuned frequencies.
asplundher on 10/11/2005 18:41:46
In my opinion, 8"s are one of the most overlooked and under estimated subs in the car audio field today. I have had more fun and ease working with them; for their box requirements makes for projects that use less space, building materials and are easy to relocate. They are perfect when in small hatchbacks, but when designed right they can be pretty impressive in larger autos as well. Not to mention they're more practical for bandpass boxes. I respect the bigger subs but it is hard to get past playing with them and hearing what they can do. Oh, and if you like multiple subs, try listening to four 8"s!
Victor on 10/11/2005 19:02:12
Ok. heres the perfect solution to your problem, i was not tracking this post, but today i went thru it in detail, if you want those 8's to go low and perform well in the lower octaves and at higher SPL's heres the deal, tricky enclosure, but has shown great results, i have made a few of those and was very impressed. many others have seen great positive results with this design,
I have recommeded this desing previously on CK too, dont remember which post but it was way back,
have a look..
OVERVIEW
http://www.decware.com/whorn.htm
FABRICATION
http://www.decware.com/whornok.htm
FORUM DEDICATED TO THIS DESIGN
http://www.decware.com/cgi-bin/yabb/YaBB.cgi?board=Wicked
Hope this helps....
Victor...
asplundher on 10/12/2005 17:58:09
I've checked pretty much all of Decwares designs and have seen that one before. They are pretty intricate, yet quite large. I'm quite sure they do perform but, they just dont seem practical for a small install. I wouldn't mind trying the Deathbox though.
swez on 10/12/2005 21:33:56
The Snail Shell is pretty neat too. I forget who designed it, but if you do a google search, am sure something interesting will pop up.
Swez
asplundher on 10/14/2005 18:36:40
Just out of curiosity, what about triple chamber bandpass ( 2 sealed, 1 vented)? With these subs it could be pretty compact.
asplundher on 10/15/2005 19:28:20
Okay, time to wrap this thread up and move on!
Man do I feel stupid, but relieved as well! After doing some more work and taking some input into consideration, I came up with this:
Lengthening the ports to 10.5", according to WIN ISD, should increase 6db @ 36, creating a more gentler slope than before. Of course, it still has a steep slope below tuning, but not as the overall sharpness as the 44hz tuning. In fact it has less of a slope down to 50hz than the recommended sealed, but with 6db more output @ 36hz and equals to the same db at 25hz. Not a bad tradeoff at all! All at the cost of slightly less output at upper notes and slight vent mach increase, which hasn't and still does not present a problem.
The early slope seemed like it would be a problem, but when taken with the cabs natural rise it didn't change much. In fact, when tested, the lengthened port was enough to bring out the notes that it was missing. Now the low end is fuller although some of the punchiness was lost. Yet, I like that now, for they blend better with the mids and seem to disappear from the back.
And the best part of all I don't have to scrap either subs or box!
swez on 10/15/2005 22:23:02
Good hunting trip and well worth the efforts to get that extra octave of bass out of such small drivers.
Just be sure to have a good SSF on your sub amp, so you don't feed subs much power below port tuning frequencies. I would suggest a minimum of -12dB/octave slop SSF at 30 Hz. By doing this, your subs will see about 25% power at 15 Hz.
F-Mods from Harrison Labs will do the job cheap and effectively. They sell a 30 Hz high pass version for this application. ($30.00/pr.)
Swez
asplundher on 10/16/2005 07:42:00
No problem! I remember we talked about that before. I can probably get a pair locally and finish this system off.
Thanks fellaz,
Ash
swez on 10/16/2005 08:41:10
Hey Ash,
You gonna stick around a while and help out on CK? If you wish to do that and have the time, a Gold Medallion that has your name on it would be available.
Swez
asplundher on 10/16/2005 22:29:31
Of course, medallion or not, I always loved to be able to help others to not have to learn the hard way I have. If I only had all the money back I wasted and not learned from, then I'd waste it now!
The main thing is; I'm still learning and still make mistakes. But when I do grasp something, it makes me that much more hungrier to learn more.
swez on 10/17/2005 08:15:27
That's how most of us learn... trial and error. It's all part of the learning curve. If I had a dollar for every blunder in my life, I'd be a millionaire by now. SMILE
Hopefully, we are all here to learn and share what works and what does not. That can shorten the blunder list for our readers, if they choose to pay attention. Many of us get neck deep in a few blunders, before asking for help. I am the worst offender in that department. But, it's getting better... LOL
Swez
Victor on 10/17/2005 09:28:07
why wud anyone pay u for making blunders.........GRIN
swez on 10/17/2005 12:49:09
Story of a young trainee: A bad day at work
This new guy had been on the job about a years and still learning the ropes. One day, he came to his boss and said with a long face. "Boss, I really screwed up! We just shipped $10,000 worth of supplies to a company that is 3 months behind on current payments".
The boss looks at him with a cautious, but understanding look. "Sit down a minute son", said the old boss.
Fearing the worst, the new hire was expecting the inevitable words, YOU'RE FIRED!!! (Donald Trumph can learn something here)
However, the boss regained his composure, gave a slight smile and said, "Well young man, we can't just fire you now. We've just invested $10,000 in your training program and I hope you have learned something from it. You'll have to work a bit harder and smarter to make up the loss."
Relieved, the trainee asked if he could take the afternoon off as he had something he just had to do. The boss looked a bit confused, but seeing the poor guys' obvious dismay, the boss said... "Sure, go get your head on straight and be back here bright and early tomorrow."
"You bet boss", said the trainee and he headed for the parking lot with a large file of papers.
The next day, the trainee was at his desk, bright and early. His boss dropped in to see how he was doing. The trainee said: "Well boss, I really messed up and just had to make it right. After our meeting yesterday, I went out to see that customer and discussed collections on past due and the new shipment of supplies."
Hummm said the boss. "That took a lot of guts to do that. What happened?" "Well, said the trainee, that company was just bought out by a larger corporation and they needed some help in the transition period. They agreed to pay all past due funds with interest, pay the new balance in 30 days and give us as much business as we can handle."
The boss was in shock at all this good news. "Son, that small investment we talked about yesterday, has a big payoff. Take the rest of the week off and I'll give you 2 airline tickets to any destination you desire. Expense all your meals and entertainment too. When you get back from your vacation, we will discuss your new assignment and a raise."
The trainee was beaming from ear to ear and headed out the door for a much needed vacation. He is now the V.P. of Accounting and collections.
How's that for a story about falling in a pile of poop, and coming out of it, smelling like a rose?
Swez
It's been a good while since I've last logged on and gave some input. Well anyways, my last project has been a 93 4dr Blazer that I recently bought. I sold my 240SX (not children friendly!) and decided to install some of the equipment that was in the 240.
Heres a list:
2 Credence 8"s
1 USB 2080
1 USB 2150
2 Hollywood 5-1/4" component sets
1 Hollywood 4" component set
So far so good on the high end running the front doors (fabricated) off the 2080. The 8"s are running off the 2150 (of course). Power handling of the 8"s are matched perfectly with 2150. However, when in the 240 they were in .33cft sealed each with a f3 around 70hz. They worked great in that setup seeing that the 240 has a high lift of about 45. I transfer the same enclosure to the Blazer to see how they would sound in a bigger space. Not that I expected the same exact results, but what I did get was much worse than I thought. I tried another enclosure that I had laying around (10" Dayton Thruster QTC.= .8). The results was just as bad, only louder. Then I ran a few programs to rebuild a new enclosure for the Credences. A .54cft (each) ported one tuned to 44hz which is good enough for most since most material barely reaches that or below. Much, much better but still missing just a tad on the deepest low end extension on some boom tracks.
I hate to get rid of them but somehow this truck has a bad dip below 60-80hz. It's going to take a sub with with a extension down to around 30hz (vented) to get the sound I'm looking for and I refuse to get bigger subs. I love 8"s for the quality sound and relatively extemely small enclosures. I don't go for loudness just SQ. I used to have some Dayton 8"s that went that low ported and gave them to a cousin. Sounded excellent in his yukon. Man was I stupid! Well anyone know of a inexpensive 8 that has pretty low extension in a small vented? If it is 4ohm then it needs to be around 150 rms. DVC or 2ohm then around 200.
Holla!
Replies (22)
ttocs on 10/1/2005 01:49:38
8's in a hatch do not equal 8's in a big truck......... Thought about going up to a single 10? It would take about the same airspace but you would get the low end you are looking for.
swez on 10/1/2005 05:49:16
Do you have a spec sheet or link on these Credence 8" drivers? A few tweeks in box design may help a lot, depending on the T/S parameters they have. You may find better bass in a smaller "Q" box. (0.7 ) is the general target for SQ installs. However, if the Fs of these subs are well above 40 Hz, this will be difficult to get decent bass in a ported or sealed enclosure.
Depending on the sub T/S parameters, they may be great for MB drivers, but not a best choice for a sub. A single 10 or 12" sub could solve this issue, if you have the space and perhaps a small sub amp to power it.
The other option could be to drop the 8's and go to one larger sub. A 4 ohm SVC or 2+2 DVC will match your amp well in bridged or 2 channel modes.
Comments?
Swez
PS Did you try facing the subs to the rear bumper? In a Blazer, that is usually your best location, right behind the rear seats. Also, what is your biggest complaint on sound you get now?
asplundher on 10/1/2005 06:24:25
I didn't expect the same loudness from the Credences when in a bigger vehicle. I only tried the same enclosure to see how they would need to be readjusted. As far as size goes, from my experience 8"s can go down just as low or lower as a 10 in a bigger box, but not as loud. The loudness is not a problem. It's the extension that they have. The FS is 42hz, but it seems that it's going to take one that goes lower no matter what the size seeing that I already tried the 10". The 10" can do it but at the cost of over a 2cft box. I was was trying to stay on the small end.
Anyway heres the url:
http://www.credencespeakers.com/Technical%20Specs.htm
I ran these through WIN ISD and with different cft and different tunings. To get a flat response down to and below 40-ish is almost impossible. Should have kept the Dayton 8"s!
asplundher on 10/1/2005 07:08:26
Did a little bit of "soul searching" and found the newer series Dayton's (Quattro) can go in about 1 cft each with a tuning frequency of around 32 hz. I quite sure power handling will down a bit. However available frequency response in this case is more important. Pretty similiar to the old series. Only problem, I will have to get rid of the Credences and Hollywood Excursion 8"s.
Oh by the way, forgot to mention that later my cousin and I switched the old Dayton's box to his wife's 95 4dr blazer and with very good and similiar results as well. What do you think about that?
swez on 10/1/2005 12:55:58
I have used some low budget 8's from PE in a larger ported enclosure and a very modest amp with very good results in a 93 Blazer. These were 8 ohm units, poly cones and tuned to ~40 Hz. I think the net volume was a tad over 1.2 cf/sub chamber. It was for my ex-g/f's truck and she loves that added bump. That was 6 years ago... when I was still getting the hang of subs for car applications though.
The Credence 8's may work in an Extended Bass Shelf enclosure. (EBS box design) They are larger than typical sealed, take less power to get to X-max, but can give nice low end bass to subs like your Credence models. They have an Fs of 42 Hz, and probably a sharp rolloff below 60 Hz.? An EBS design could bring up your lows to some degree, if you research them well before diving in.
Other than that, Dayton makes some pretty nice subs at reasonable prices. A net 4 ohm load to a bridged amp, will give you about +3 dB of clean bass. If you go ported, that will give about +3dB more SPL bass near tuning frequency. (32-36 Hz would be nice)
Anyway, something has to be changed, to get the bass performance you desire. It could be a new box design, a different sub whatever. Personally, I would opt for a dual Alpine Type E or a single Type R sub here. Maybe you can sell the rest or hang on to them for a future project??? No matter how you slice it, got a good amp there, but the subs (box design) are holding you back.
Specs indicate these are 4 ohm SVC's. No way to get best out of that USB amp unless you tried to run it MONO at 2 ohms. It may accept that load, but I really don't recommend it.
What say you Ash?
Swez
asplundher on 10/4/2005 20:31:39
Unfortunatley, I agree! The box that I used before was tuned to the mid 30's if I remember correctly . That is why it sounded so good between the three vehicles. To get that same quality another enclosure or sub will have to be used. The enclosure route will be much cheaper of course. I ran both the new Daytons and Credences side by side on WinISD for comparison and predicted output was very close in slightly the same cft. (around 1.05cft @ 35hz). Only drawback is the output was down a few db's. But that was on both so maybe it will work as good as the old ones. I will probably try that route before crossing them off as useless in this application.
A good 10" that will get that low will have to handle the 2150 bridged and might be less cft than the two 8"s. I don't mind the airspace taken up with the 8"s since the box will be of lower profile when spread out towards the width of the truck. The height of the 10" box is what I don't like. I'm trying to keep it stealthy as possible. Vent size and mach may also present a problem as well depending on the available space in the box. This might take some careful planning.
swez on 10/5/2005 09:30:34
Win ISD is a good program for planning your sub enclosure. One thing it does not account for, is the lower octave hump we get in most mobile applications. (cabin gain effects) This hump can be substantial, (more than +10dB) below 60 Hz.
That rolloff on the plot below what, 50 Hz., will actually fill in nicely due to cabin gain effects. So really, the plot will have a positive hump of several dB between 35-60 Hz. (give or take a few Hz.)
Try the new ported box design with your present Credence subs. I have a hunch you'll come out on this one as mentioned above. It's a lot cheaper to replace a box then buying a new sub(s).
Just keep a close watch on the cone excursion at higher SPL levels. If you get cone whopping, back off on the bass in the 40 Hz range a tad.
Swez
asplundher on 10/6/2005 14:28:42
Sounds like that is going to be the plan! The SPL factor is not as important as a wider response to me. Plus it's not like you won't be no longer able to feel the bass. It just won't be quite as strong, but isn't that the normal tradeoff on any design. So I don't think it will be a need to worry afterall. Thanks!
cplkittle on 10/9/2005 23:59:57
I have never heard a bad sounding 8 in a ported box. 8 is the magic size that retains SQ even when in a larger ported box. I agree with Swez on the EBS design. I also agree with the 1.05cft @ 35hz asplunder suggested which is basically the same. and I have metered several vehicles that tested right at 16dB higher than WinISD indicated at tuned frequencies.
asplundher on 10/11/2005 18:41:46
In my opinion, 8"s are one of the most overlooked and under estimated subs in the car audio field today. I have had more fun and ease working with them; for their box requirements makes for projects that use less space, building materials and are easy to relocate. They are perfect when in small hatchbacks, but when designed right they can be pretty impressive in larger autos as well. Not to mention they're more practical for bandpass boxes. I respect the bigger subs but it is hard to get past playing with them and hearing what they can do. Oh, and if you like multiple subs, try listening to four 8"s!
Victor on 10/11/2005 19:02:12
Ok. heres the perfect solution to your problem, i was not tracking this post, but today i went thru it in detail, if you want those 8's to go low and perform well in the lower octaves and at higher SPL's heres the deal, tricky enclosure, but has shown great results, i have made a few of those and was very impressed. many others have seen great positive results with this design,
I have recommeded this desing previously on CK too, dont remember which post but it was way back,
have a look..
OVERVIEW
http://www.decware.com/whorn.htm
FABRICATION
http://www.decware.com/whornok.htm
FORUM DEDICATED TO THIS DESIGN
http://www.decware.com/cgi-bin/yabb/YaBB.cgi?board=Wicked
Hope this helps....
Victor...
asplundher on 10/12/2005 17:58:09
I've checked pretty much all of Decwares designs and have seen that one before. They are pretty intricate, yet quite large. I'm quite sure they do perform but, they just dont seem practical for a small install. I wouldn't mind trying the Deathbox though.
swez on 10/12/2005 21:33:56
The Snail Shell is pretty neat too. I forget who designed it, but if you do a google search, am sure something interesting will pop up.
Swez
asplundher on 10/14/2005 18:36:40
Just out of curiosity, what about triple chamber bandpass ( 2 sealed, 1 vented)? With these subs it could be pretty compact.
asplundher on 10/15/2005 19:28:20
Okay, time to wrap this thread up and move on!
Man do I feel stupid, but relieved as well! After doing some more work and taking some input into consideration, I came up with this:
Lengthening the ports to 10.5", according to WIN ISD, should increase 6db @ 36, creating a more gentler slope than before. Of course, it still has a steep slope below tuning, but not as the overall sharpness as the 44hz tuning. In fact it has less of a slope down to 50hz than the recommended sealed, but with 6db more output @ 36hz and equals to the same db at 25hz. Not a bad tradeoff at all! All at the cost of slightly less output at upper notes and slight vent mach increase, which hasn't and still does not present a problem.
The early slope seemed like it would be a problem, but when taken with the cabs natural rise it didn't change much. In fact, when tested, the lengthened port was enough to bring out the notes that it was missing. Now the low end is fuller although some of the punchiness was lost. Yet, I like that now, for they blend better with the mids and seem to disappear from the back.
And the best part of all I don't have to scrap either subs or box!
swez on 10/15/2005 22:23:02
Good hunting trip and well worth the efforts to get that extra octave of bass out of such small drivers.
Just be sure to have a good SSF on your sub amp, so you don't feed subs much power below port tuning frequencies. I would suggest a minimum of -12dB/octave slop SSF at 30 Hz. By doing this, your subs will see about 25% power at 15 Hz.
F-Mods from Harrison Labs will do the job cheap and effectively. They sell a 30 Hz high pass version for this application. ($30.00/pr.)
Swez
asplundher on 10/16/2005 07:42:00
No problem! I remember we talked about that before. I can probably get a pair locally and finish this system off.
Thanks fellaz,
Ash
swez on 10/16/2005 08:41:10
Hey Ash,
You gonna stick around a while and help out on CK? If you wish to do that and have the time, a Gold Medallion that has your name on it would be available.
Swez
asplundher on 10/16/2005 22:29:31
Of course, medallion or not, I always loved to be able to help others to not have to learn the hard way I have. If I only had all the money back I wasted and not learned from, then I'd waste it now!
The main thing is; I'm still learning and still make mistakes. But when I do grasp something, it makes me that much more hungrier to learn more.
swez on 10/17/2005 08:15:27
That's how most of us learn... trial and error. It's all part of the learning curve. If I had a dollar for every blunder in my life, I'd be a millionaire by now. SMILE
Hopefully, we are all here to learn and share what works and what does not. That can shorten the blunder list for our readers, if they choose to pay attention. Many of us get neck deep in a few blunders, before asking for help. I am the worst offender in that department. But, it's getting better... LOL
Swez
Victor on 10/17/2005 09:28:07
why wud anyone pay u for making blunders.........GRIN
swez on 10/17/2005 12:49:09
Story of a young trainee: A bad day at work
This new guy had been on the job about a years and still learning the ropes. One day, he came to his boss and said with a long face. "Boss, I really screwed up! We just shipped $10,000 worth of supplies to a company that is 3 months behind on current payments".
The boss looks at him with a cautious, but understanding look. "Sit down a minute son", said the old boss.
Fearing the worst, the new hire was expecting the inevitable words, YOU'RE FIRED!!! (Donald Trumph can learn something here)
However, the boss regained his composure, gave a slight smile and said, "Well young man, we can't just fire you now. We've just invested $10,000 in your training program and I hope you have learned something from it. You'll have to work a bit harder and smarter to make up the loss."
Relieved, the trainee asked if he could take the afternoon off as he had something he just had to do. The boss looked a bit confused, but seeing the poor guys' obvious dismay, the boss said... "Sure, go get your head on straight and be back here bright and early tomorrow."
"You bet boss", said the trainee and he headed for the parking lot with a large file of papers.
The next day, the trainee was at his desk, bright and early. His boss dropped in to see how he was doing. The trainee said: "Well boss, I really messed up and just had to make it right. After our meeting yesterday, I went out to see that customer and discussed collections on past due and the new shipment of supplies."
Hummm said the boss. "That took a lot of guts to do that. What happened?" "Well, said the trainee, that company was just bought out by a larger corporation and they needed some help in the transition period. They agreed to pay all past due funds with interest, pay the new balance in 30 days and give us as much business as we can handle."
The boss was in shock at all this good news. "Son, that small investment we talked about yesterday, has a big payoff. Take the rest of the week off and I'll give you 2 airline tickets to any destination you desire. Expense all your meals and entertainment too. When you get back from your vacation, we will discuss your new assignment and a raise."
The trainee was beaming from ear to ear and headed out the door for a much needed vacation. He is now the V.P. of Accounting and collections.
How's that for a story about falling in a pile of poop, and coming out of it, smelling like a rose?
Swez
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