ok here is the system i'm going to have this summer and want to know if i should get an Equalizer to go with it and tame the beast so to speak.
HU - Pioneer Premier DEH-P640
Front Speakers - CDT HD-62CF
Rear Speakers - 2 Elemental Designs 8A 8" midbass
Sub - 1 Elemental Designs 12A or 15A(unsure on this one whether i want a 12"or 15" sub)
Sub Amp - Avionixx AXT 1200.2
Mid and High Amp - Avionixx AXT 800.4 (this well be running the CDTs and the 2 8a's)
basicaly i want to know if i should get an equalizer to help make all the speakers play there best frequencies and not over lap and get muddy. or if it well sound find without or there is a better alternative then a equalizer.
thanks as always
Replies (29)
snipe523 on 02/7/2004 02:53:21
Well to have the speakers not overlap all you need is a good electronic crossover.
Just one comment on your planned setup, I see you plan on using e8a's as midbass. I personally would not recomend this as they are meant to be used as subs and not midbass. Thus if you set them up to play in the upper bass range(midbass) there is a very good chance that they will sound muddy. Your best bet to double check this would be to email Ben, Jeremy, or Eric over at ED and ask them as I'm sure they could tell you better than I can.
cplkittle on 02/7/2004 13:05:55
I agree a good 3 channel crossover would be the best way to go. Get a crossover with both low and high pass filters on each channel. I know memphis makes a good one, and also boosts your rca output to 8v.
uochronos on 02/7/2004 14:24:17
i dont see why the 8a's would sound muddy... infact just here many people have suggested to others to use 10's and 8's as higher bass frerquencuies... i couldnt get a spec for the 8a because the manual link wanst working but there 15" can go all the way to 130hz with only a 1.8db variance... so i'm sure there 8a can handle up to about 250-350 without alot of problemthen my 6.5's in the frront well pick up from there up. basicaly the 8a's well cover 80hz-350hz probaly just to fill in the parts that arent getting alot of sound...
uochronos on 02/7/2004 14:26:39
where do i find memphis products? for a good price? and also anyone else have a suggestion on a good crossover? also i was wondering i noticed this last night when i was looking at my HU unfortunatly it only has a front rca output and a sub rca output... am i going to have to tap into the rear speaker wires or what to get another rca? sorry i'am sort of mixing 2 questions together in this post.
Pinch on 02/8/2004 12:58:15
Dunno on price, but the guys over at CDT recommend Tru Technology products: http://www.trutechnology.com/f_series.htm
I e-mailed them and they seemed very helpful and were more than willing to answer any questions I had.
swez on 02/8/2004 13:29:55
Since your HU has limited RCA outs, a good 3 way parametric EQ/crossover would make a lot of sense. Here, you just plug what outs you have into the Crossover, then the crossover has outputs for full, MB, MR and subs. (front/rear stages & sub) I really like the Audio Control products in general and maybe Memphis has a few good offerings as well.
http://www.audiocontrol.com/MobileAudio/Products/Crossovers
/6XS.html
OR http://www.audiocontrol.com/MobileAudio/Products
/Equalizers/EQX.html
Parametric design allows you to adjust the band width and slope of each crossover filter network an allocates that frequency range to each amp/speakers.
Also, using 8" speakers for midbass is fine, depending on the operating range of the drivers you choose. That means looking at the specs for these drivers and see what the SPL/Freq plot curves look like between 80 to say 500 Hz. If you there is a rapid fall rate on the speaker above ~300 Hz, it may work fine. But if the fall rate starts at 150 Hz or less... may need to re-think using a different driver.
Swez
uochronos on 02/8/2004 22:14:12
thanks swez and everyone else for the help as always it makes since now hehe... i think i well go with the crossover from audio control swez suggested looks like a nice set up,,, i'm happy i can stay away from the EQ i didnt want to have to mess with that a crossover is much simpler... and the 6XS looks like it has all the options i need then some.
swez on 02/9/2004 11:57:32
Review the .pdf file on the products you are considering. They should give you plenty of detail on how to get the most performance and versatilty from the processor you choose.
The best part here, you get multi-channel outputs with only limited input jacks from your HU. The big plus is a line driver to kick up the signal voltage (clean, noise free) and all the signal processing features for each bandwidth you choose for your drivers.
Do you have a web link on the ED's e8A drivers? I found one but we need to know the usable frequency range of the e8A driver. The Fs is incredible at 33.7 Hz. For an 8" driver, that is amazing to me... but how does the frequency plot look between 80 - 300 Hz? I bet it is in the .pdf file, but I cant get to it... get a redirect back to home page.
I shot an e-mail to Tech Service and see what they have to say on this spec. I would hope the plot is somewhat flat in that range mentioned, of a few dB down is ok... but not 10-12dB down in the MB range.
Let's see how well they respond>?>>
Swez
swez on 02/10/2004 19:47:20
Jeremy gave me a reply thet the e8A is probably not a great MB driver choice. He admitted the .pdf files were down, but said 150 Hz., was about the upper limits for that driver.
Looks like you have a crossroad to choose a different 8" driver or use the e8A more like a sub... 60-150 Hz, then mids and highs and sub fill in the gaps.
Swez
uochronos on 02/10/2004 19:58:09
can you suggest a good 8 inch mid bass driver? i have to admit i liked using the e8a because of its sleek no logo look and low power needs... i do have the cdt 6.5 running midrange and these are rated to a pretty low frequency i ahve mine currently going down to 120hz... i was hoping to get 250-300hz out of the mid bass. basicaly i just want something that well go from 80hz to 300hz and fill in that weak spot my system has now... and i dont want to spend more then 300$ on the speakers and i want quality sound. so any suggestions would be good... also i well need a speaker that can run 200watts rms at 2 ohm or 125watts rms at 4 ohms. so any suggestions would be well apreciated.
erikcooper on 02/11/2004 00:28:54
What about RE's RE8? It runs 175 RMS and I have e-mailed them about the high freq. for it. I will let you know what they say.
uochronos on 02/11/2004 01:10:59
ok thanks alot. i well take a look at them let me know what you find out about the specs
asplundher on 02/11/2004 12:26:30
Heres something to think about. The most common dip in frequency response in autos tends to happen around the 200-400hz range. This is why you see more HU's with a built-in eq including that range. You could add "particular" drivers to offset it but it will still be there amongst the others. That range should be coming from your front soundstage to give it more realism and richness. If that particular driver is not up front, the soundstage could be drawn away degrading your imaging. Your mids up front should play that range especially if they are crossed over at 200hz or below. The most common and easiest way to fix that problem is to boost what frequencies are missing, hence an EQ. So on that point a EQ can be a better choice.br
uochronos on 02/11/2004 13:29:13
that is a good point an eq could help... basicaly my cdt's can go down to 120hz ok but i dont really need that low of frequency in the front it sound a little boomy. and you have to realize i ahev a truck front sound stage or rear there is like a 3 foot differnce. i dont think it well be bad... basicaly i want my cdt mids to do just that play mids 350+ and my 8"s i well be getting to play the higher bass frequencies. 80-350hz or about that. a eq wouldnt be a bad idea but i dont want to have to complicate this system too much if i dont have to. already with cdt's hd-62cf a pioneer premier deck and 2 type r 10" alpine subs i have one of the nicest sounding systems in my area now with this summers changes i just want to add more power and clarity. i wont be competing or anything with this vehicle so it just has to sound good to my ear. thanks for your advise.
asplundher on 02/11/2004 19:02:16
Well how about this on a second note? The main decks that have that feature are Pioneer. Play around with the frequencies and Q level on the mid-band and you might just get what you are looking for. So I guess you really won't need a extra EQ. Ain't Pioneer just grand?!!!!
snipe523 on 02/11/2004 19:56:06
Take a look at the Adire audio Kodas. They supposedly have extremely strong midbass.
erikcooper on 02/12/2004 00:27:37
I have looked at the adire kodas while I was searching. They don't start pulling good until around 200hz
uochronos on 02/12/2004 00:47:27
i have played around with my eq on my pioneer deck it did help changing some of the settings but i still want mroe mid bass it seems like soemthing is missing in that area of sound still.
asplundher on 02/12/2004 18:08:10
Umm! This could be a kind of a hard one to figure out when no one else can listen to what you are hearing. Have you tried listening to the doors by themselves to see exactly how they are performing in the bass-mid bass region. It could be possible that they are not what you are needing. Personally, I still believe that the doors should be playing that range. However, I myself have found few that will without some form of manipulation (some type of rear baffling, enclosure, etc). In fact, a lot of manufacturers recommend enclosures for optimum performance, especially on the higher lines. Most are designed for clarity with punch, not a good resonant mid-bass or even real free air use. Does anyone know the CDT actual woofer's specs? Just out of curiousity, I'd like to know of what nature are they. br
uochronos on 02/12/2004 23:15:37
they do ok at what iw ould say is 300-400+ but around 100-200hz they get a bit distorted... what i was thinking today when i was tinkering with it today is. get rid of the idea of 8's for mid bass.. and get another set of cdts for the rear so i'm getting a bit of rear fill. and build some sort of box for the cdt woofers.. and mayeb try to design a box for the front woofers... although this would be hard to do in the door(any advise on doing this would be apreciated...) because i think your right the cdts have the ability to do what i want i just need to set it up better. also once i get my amp for the cdts it well give them the power they need to put out these frequencies better. not to mention another set of cdts well be cheaper then 2 8's most likly. also i was wondering i heard this mentioned somewhere on the forum about how sound from the tweeter sounds better if its close to the mid. well mine are quite far apart but on my cdts crossover its got a spot to plug in an "image tweeter" which is for the dash which is where i have the c\urrent tweeters mounted. would it sound better if i pluged my tweeters into this? and what exactly is the differnce between these 2 plug ins what exactly does it change?
erikcooper on 02/13/2004 00:28:44
Most 6" woofers are going to drop db significantly under the 200hz range. If you want good sound from that problem area you are going to need an eq to boost it or speakers that can play it good.
asplundher on 02/13/2004 01:05:39
To get the most out of any door mounted speaker, the door must be seen by the woofer as a enclosure. Without rear baffling this can be hard to attain especially with woofers under .6 Qts. They will usually need some sort of box wether it be a simple acoustical wool blanket fixed behind the basket up to a complicated fiberglass box inside the door. Higher Q woofers (over .6) are better free air speakers and tend to have better bass response just using the air inside your door . However all woofers will benefit from a well dampened door and or panel. It may be very benefical for you to try some sort of dampening product on yours before going any other expensive route. This will cut out any loss of bass due to leaks around the mounting area and losses/colorations from vibrations of the panel/door. I'm not trying to confuse you but, this is to show you just how much can be involved in getting them to perform properly. Read this link : http://www.epinions.com/content_127287856772
uochronos on 02/13/2004 13:03:53
not confusing me at all but spending the time to create a enclosure for my door speakers in the door would be far too time consuming i think. i dont even know how i would get the box in behind the speaker actualy. and how would i find out how big of a box? Also as far as deaden goes i already plan on doing this moeny is just kind of short. i'm not unhappy with my speakers as is just trying to plan out what i'm going to change in the system this spring.
uochronos on 02/15/2004 14:51:27
hey i was just wondering what you guys think about buying a crossover such as the 6xs audio control off ebay if i dont know if its useds or not. i'm assuming it is but looks very well taken car of from the picture. take a look and tell me what you think of buying it from here. would save me quite a bit of money.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3077810253&category=18803
swez on 02/16/2004 12:10:38
Seems to me... the CDT's should take you down into the 80 Hz., range well enough. From there, the subs take over.
The question here in my mind, is how do the CDT's sound at 80, 100, 120 and 200 Hz crossover points in your vehicle. This is where a variable crossover helps tweak and define.
If you are getting excess distortions out of the CDT's, how much clean power do you have to throw at them?/? If just running a HU power amp now, yes... they will distort a lot once the HU amps begin to clip. It's not the CDT's... the HU amps are pooping out. Get more amping power to them, (75 -100 watts RMS) and I am willing to bet you'll have an entirely different sound.
Now, if you have a decent power amp to run the CDT's, and still hear noise or distortions... this may have more to do with installation and air space then anything else. Again, having good Equlization control can really haelp control hot spots, sags in some frequency ranges and a more balanced sound stage. (F & R)
Comments?
Swez
PS The 6XS is only a crossover device. It has 8 output channels and bandwidth freq controls, but not a real EQ. Consider the EQS or EQX as a good option... 13 band, Subsonic filter etc... look:
http://www.audiocontrol.com/MobileAudio/Products/Equalizers/index.html
uochronos on 02/16/2004 16:11:47
would you buy a used one though or would it be better to go with a new one. there is a eqx on ebay too that says its like new and in working condition. but i dont know if EQ's are soemthing you want to buy used.
erikcooper on 02/17/2004 00:09:11
Just dropping into this topic to say that the guys at RE say the RE8 is not suitable for midbass ranges, that it was made for bass.
kiaman on 02/17/2004 03:22:12
no....RE8 is bass....got it from the horses mouth...loyd lol.....look at IDmax? http://www.imagedynamicsusa.com/website/products/midbass.html ive heard GREAT things about these little guys......also look into peerless and focal (from partsexpress.com) the IDmax's can be had at http://www.sounddomain.com/sku/IDSCX64 for $189 a pair
swez on 02/17/2004 19:13:22
Buying a good piece of used is not a problem if you can see it, hear it, play with it before you plunk down your cash. If you buy from e-bay and have no return privledges if defective... you just got ripped off.
I guess it really depends on the seller you are dealing with. Look at the ratings others have given him. Call him to fish out what you think of his offering and personality. If all those are Kosher... may be worth the deal.
Swez
HU - Pioneer Premier DEH-P640
Front Speakers - CDT HD-62CF
Rear Speakers - 2 Elemental Designs 8A 8" midbass
Sub - 1 Elemental Designs 12A or 15A(unsure on this one whether i want a 12"or 15" sub)
Sub Amp - Avionixx AXT 1200.2
Mid and High Amp - Avionixx AXT 800.4 (this well be running the CDTs and the 2 8a's)
basicaly i want to know if i should get an equalizer to help make all the speakers play there best frequencies and not over lap and get muddy. or if it well sound find without or there is a better alternative then a equalizer.
thanks as always
Replies (29)
snipe523 on 02/7/2004 02:53:21
Well to have the speakers not overlap all you need is a good electronic crossover.
Just one comment on your planned setup, I see you plan on using e8a's as midbass. I personally would not recomend this as they are meant to be used as subs and not midbass. Thus if you set them up to play in the upper bass range(midbass) there is a very good chance that they will sound muddy. Your best bet to double check this would be to email Ben, Jeremy, or Eric over at ED and ask them as I'm sure they could tell you better than I can.
cplkittle on 02/7/2004 13:05:55
I agree a good 3 channel crossover would be the best way to go. Get a crossover with both low and high pass filters on each channel. I know memphis makes a good one, and also boosts your rca output to 8v.
uochronos on 02/7/2004 14:24:17
i dont see why the 8a's would sound muddy... infact just here many people have suggested to others to use 10's and 8's as higher bass frerquencuies... i couldnt get a spec for the 8a because the manual link wanst working but there 15" can go all the way to 130hz with only a 1.8db variance... so i'm sure there 8a can handle up to about 250-350 without alot of problemthen my 6.5's in the frront well pick up from there up. basicaly the 8a's well cover 80hz-350hz probaly just to fill in the parts that arent getting alot of sound...
uochronos on 02/7/2004 14:26:39
where do i find memphis products? for a good price? and also anyone else have a suggestion on a good crossover? also i was wondering i noticed this last night when i was looking at my HU unfortunatly it only has a front rca output and a sub rca output... am i going to have to tap into the rear speaker wires or what to get another rca? sorry i'am sort of mixing 2 questions together in this post.
Pinch on 02/8/2004 12:58:15
Dunno on price, but the guys over at CDT recommend Tru Technology products: http://www.trutechnology.com/f_series.htm
I e-mailed them and they seemed very helpful and were more than willing to answer any questions I had.
swez on 02/8/2004 13:29:55
Since your HU has limited RCA outs, a good 3 way parametric EQ/crossover would make a lot of sense. Here, you just plug what outs you have into the Crossover, then the crossover has outputs for full, MB, MR and subs. (front/rear stages & sub) I really like the Audio Control products in general and maybe Memphis has a few good offerings as well.
http://www.audiocontrol.com/MobileAudio/Products/Crossovers
/6XS.html
OR http://www.audiocontrol.com/MobileAudio/Products
/Equalizers/EQX.html
Parametric design allows you to adjust the band width and slope of each crossover filter network an allocates that frequency range to each amp/speakers.
Also, using 8" speakers for midbass is fine, depending on the operating range of the drivers you choose. That means looking at the specs for these drivers and see what the SPL/Freq plot curves look like between 80 to say 500 Hz. If you there is a rapid fall rate on the speaker above ~300 Hz, it may work fine. But if the fall rate starts at 150 Hz or less... may need to re-think using a different driver.
Swez
uochronos on 02/8/2004 22:14:12
thanks swez and everyone else for the help as always it makes since now hehe... i think i well go with the crossover from audio control swez suggested looks like a nice set up,,, i'm happy i can stay away from the EQ i didnt want to have to mess with that a crossover is much simpler... and the 6XS looks like it has all the options i need then some.
swez on 02/9/2004 11:57:32
Review the .pdf file on the products you are considering. They should give you plenty of detail on how to get the most performance and versatilty from the processor you choose.
The best part here, you get multi-channel outputs with only limited input jacks from your HU. The big plus is a line driver to kick up the signal voltage (clean, noise free) and all the signal processing features for each bandwidth you choose for your drivers.
Do you have a web link on the ED's e8A drivers? I found one but we need to know the usable frequency range of the e8A driver. The Fs is incredible at 33.7 Hz. For an 8" driver, that is amazing to me... but how does the frequency plot look between 80 - 300 Hz? I bet it is in the .pdf file, but I cant get to it... get a redirect back to home page.
I shot an e-mail to Tech Service and see what they have to say on this spec. I would hope the plot is somewhat flat in that range mentioned, of a few dB down is ok... but not 10-12dB down in the MB range.
Let's see how well they respond>?>>
Swez
swez on 02/10/2004 19:47:20
Jeremy gave me a reply thet the e8A is probably not a great MB driver choice. He admitted the .pdf files were down, but said 150 Hz., was about the upper limits for that driver.
Looks like you have a crossroad to choose a different 8" driver or use the e8A more like a sub... 60-150 Hz, then mids and highs and sub fill in the gaps.
Swez
uochronos on 02/10/2004 19:58:09
can you suggest a good 8 inch mid bass driver? i have to admit i liked using the e8a because of its sleek no logo look and low power needs... i do have the cdt 6.5 running midrange and these are rated to a pretty low frequency i ahve mine currently going down to 120hz... i was hoping to get 250-300hz out of the mid bass. basicaly i just want something that well go from 80hz to 300hz and fill in that weak spot my system has now... and i dont want to spend more then 300$ on the speakers and i want quality sound. so any suggestions would be good... also i well need a speaker that can run 200watts rms at 2 ohm or 125watts rms at 4 ohms. so any suggestions would be well apreciated.
erikcooper on 02/11/2004 00:28:54
What about RE's RE8? It runs 175 RMS and I have e-mailed them about the high freq. for it. I will let you know what they say.
uochronos on 02/11/2004 01:10:59
ok thanks alot. i well take a look at them let me know what you find out about the specs
asplundher on 02/11/2004 12:26:30
Heres something to think about. The most common dip in frequency response in autos tends to happen around the 200-400hz range. This is why you see more HU's with a built-in eq including that range. You could add "particular" drivers to offset it but it will still be there amongst the others. That range should be coming from your front soundstage to give it more realism and richness. If that particular driver is not up front, the soundstage could be drawn away degrading your imaging. Your mids up front should play that range especially if they are crossed over at 200hz or below. The most common and easiest way to fix that problem is to boost what frequencies are missing, hence an EQ. So on that point a EQ can be a better choice.br
uochronos on 02/11/2004 13:29:13
that is a good point an eq could help... basicaly my cdt's can go down to 120hz ok but i dont really need that low of frequency in the front it sound a little boomy. and you have to realize i ahev a truck front sound stage or rear there is like a 3 foot differnce. i dont think it well be bad... basicaly i want my cdt mids to do just that play mids 350+ and my 8"s i well be getting to play the higher bass frequencies. 80-350hz or about that. a eq wouldnt be a bad idea but i dont want to have to complicate this system too much if i dont have to. already with cdt's hd-62cf a pioneer premier deck and 2 type r 10" alpine subs i have one of the nicest sounding systems in my area now with this summers changes i just want to add more power and clarity. i wont be competing or anything with this vehicle so it just has to sound good to my ear. thanks for your advise.
asplundher on 02/11/2004 19:02:16
Well how about this on a second note? The main decks that have that feature are Pioneer. Play around with the frequencies and Q level on the mid-band and you might just get what you are looking for. So I guess you really won't need a extra EQ. Ain't Pioneer just grand?!!!!
snipe523 on 02/11/2004 19:56:06
Take a look at the Adire audio Kodas. They supposedly have extremely strong midbass.
erikcooper on 02/12/2004 00:27:37
I have looked at the adire kodas while I was searching. They don't start pulling good until around 200hz
uochronos on 02/12/2004 00:47:27
i have played around with my eq on my pioneer deck it did help changing some of the settings but i still want mroe mid bass it seems like soemthing is missing in that area of sound still.
asplundher on 02/12/2004 18:08:10
Umm! This could be a kind of a hard one to figure out when no one else can listen to what you are hearing. Have you tried listening to the doors by themselves to see exactly how they are performing in the bass-mid bass region. It could be possible that they are not what you are needing. Personally, I still believe that the doors should be playing that range. However, I myself have found few that will without some form of manipulation (some type of rear baffling, enclosure, etc). In fact, a lot of manufacturers recommend enclosures for optimum performance, especially on the higher lines. Most are designed for clarity with punch, not a good resonant mid-bass or even real free air use. Does anyone know the CDT actual woofer's specs? Just out of curiousity, I'd like to know of what nature are they. br
uochronos on 02/12/2004 23:15:37
they do ok at what iw ould say is 300-400+ but around 100-200hz they get a bit distorted... what i was thinking today when i was tinkering with it today is. get rid of the idea of 8's for mid bass.. and get another set of cdts for the rear so i'm getting a bit of rear fill. and build some sort of box for the cdt woofers.. and mayeb try to design a box for the front woofers... although this would be hard to do in the door(any advise on doing this would be apreciated...) because i think your right the cdts have the ability to do what i want i just need to set it up better. also once i get my amp for the cdts it well give them the power they need to put out these frequencies better. not to mention another set of cdts well be cheaper then 2 8's most likly. also i was wondering i heard this mentioned somewhere on the forum about how sound from the tweeter sounds better if its close to the mid. well mine are quite far apart but on my cdts crossover its got a spot to plug in an "image tweeter" which is for the dash which is where i have the c\urrent tweeters mounted. would it sound better if i pluged my tweeters into this? and what exactly is the differnce between these 2 plug ins what exactly does it change?
erikcooper on 02/13/2004 00:28:44
Most 6" woofers are going to drop db significantly under the 200hz range. If you want good sound from that problem area you are going to need an eq to boost it or speakers that can play it good.
asplundher on 02/13/2004 01:05:39
To get the most out of any door mounted speaker, the door must be seen by the woofer as a enclosure. Without rear baffling this can be hard to attain especially with woofers under .6 Qts. They will usually need some sort of box wether it be a simple acoustical wool blanket fixed behind the basket up to a complicated fiberglass box inside the door. Higher Q woofers (over .6) are better free air speakers and tend to have better bass response just using the air inside your door . However all woofers will benefit from a well dampened door and or panel. It may be very benefical for you to try some sort of dampening product on yours before going any other expensive route. This will cut out any loss of bass due to leaks around the mounting area and losses/colorations from vibrations of the panel/door. I'm not trying to confuse you but, this is to show you just how much can be involved in getting them to perform properly. Read this link : http://www.epinions.com/content_127287856772
uochronos on 02/13/2004 13:03:53
not confusing me at all but spending the time to create a enclosure for my door speakers in the door would be far too time consuming i think. i dont even know how i would get the box in behind the speaker actualy. and how would i find out how big of a box? Also as far as deaden goes i already plan on doing this moeny is just kind of short. i'm not unhappy with my speakers as is just trying to plan out what i'm going to change in the system this spring.
uochronos on 02/15/2004 14:51:27
hey i was just wondering what you guys think about buying a crossover such as the 6xs audio control off ebay if i dont know if its useds or not. i'm assuming it is but looks very well taken car of from the picture. take a look and tell me what you think of buying it from here. would save me quite a bit of money.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3077810253&category=18803
swez on 02/16/2004 12:10:38
Seems to me... the CDT's should take you down into the 80 Hz., range well enough. From there, the subs take over.
The question here in my mind, is how do the CDT's sound at 80, 100, 120 and 200 Hz crossover points in your vehicle. This is where a variable crossover helps tweak and define.
If you are getting excess distortions out of the CDT's, how much clean power do you have to throw at them?/? If just running a HU power amp now, yes... they will distort a lot once the HU amps begin to clip. It's not the CDT's... the HU amps are pooping out. Get more amping power to them, (75 -100 watts RMS) and I am willing to bet you'll have an entirely different sound.
Now, if you have a decent power amp to run the CDT's, and still hear noise or distortions... this may have more to do with installation and air space then anything else. Again, having good Equlization control can really haelp control hot spots, sags in some frequency ranges and a more balanced sound stage. (F & R)
Comments?
Swez
PS The 6XS is only a crossover device. It has 8 output channels and bandwidth freq controls, but not a real EQ. Consider the EQS or EQX as a good option... 13 band, Subsonic filter etc... look:
http://www.audiocontrol.com/MobileAudio/Products/Equalizers/index.html
uochronos on 02/16/2004 16:11:47
would you buy a used one though or would it be better to go with a new one. there is a eqx on ebay too that says its like new and in working condition. but i dont know if EQ's are soemthing you want to buy used.
erikcooper on 02/17/2004 00:09:11
Just dropping into this topic to say that the guys at RE say the RE8 is not suitable for midbass ranges, that it was made for bass.
kiaman on 02/17/2004 03:22:12
no....RE8 is bass....got it from the horses mouth...loyd lol.....look at IDmax? http://www.imagedynamicsusa.com/website/products/midbass.html ive heard GREAT things about these little guys......also look into peerless and focal (from partsexpress.com) the IDmax's can be had at http://www.sounddomain.com/sku/IDSCX64 for $189 a pair
swez on 02/17/2004 19:13:22
Buying a good piece of used is not a problem if you can see it, hear it, play with it before you plunk down your cash. If you buy from e-bay and have no return privledges if defective... you just got ripped off.
I guess it really depends on the seller you are dealing with. Look at the ratings others have given him. Call him to fish out what you think of his offering and personality. If all those are Kosher... may be worth the deal.
Swez
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