i have two DVC 1 ohm subwoofers and im wondering if anyone has advice on how to wire them to a monoblock amp at 1 ohm
subs are Soundstream T4-12's 900rms 1800 peak
amp is Hifonics BXi 0606D class d monoblock amp 1600 rms x1 @ 1ohm
Replies (22)
Victor on 01/23/2007 15:39:24
http://www.clubknowledge.com/Car_Audio_FAQ/?t33
check out the image titled
"2 DVC Subs (Series VC’s, Parallel SUB’s)"
you could use this wiring technique... to obtain a total load of 1 ohm to the amplifier..
swez on 01/23/2007 16:18:15
You will want to wire each sub coils set in series. (This is 2 ohms/sub) Then, wire both subs in parallel to your amp output for a perfect 1 phm match.
The wiring configuration used is this one:
http://img8.imageshack.us/my.php?image=2dvcseriesvcparallelsubs0gh.jpg
Sweet subs and a good match on the amp. These subs are spec's at 1000 watts RMS/ea. However, 1600 watts RMS is plenty to push them well into the mid 140's dB of SPL too.
Are you going sealed, ported or other with these subs?
Swez
kirchatndftbl on 01/23/2007 16:51:44
im probably getting a new box soon but it will probably be ported
manufacturer recomends only ported but do you think sealed will be a better choice?
what guage speaker wire would you recommend?
swez on 01/23/2007 17:58:19
Ported subs tend to sound stronger and go lower too. Use the makers recommendations for airspace and porting recommendations and things should be smooth.
Consider tuning between 30-35 Hz., for these subs. Also, this amp has an Infrasonic Filter as well. Ported enclosure need that feature to protect your woofers.
Wire gage used for speaker line, is determined by power it must carry and length of wire used. A #12 gage line is rated to handle 2,400 watts. If you stay under 6 feet long of wires, good nuff. If you want to drop to #10 wiring, that's an option.
Swez
kirchatndftbl on 02/9/2007 01:30:52
i have my amp hooked up and theres a problem everything is wired correctly but when i turn on the cd deck music plays but the subs arent playing the amp turns on but nothing happens. Any suggestions on what could cause this? i fixed my ground wire and it is secure to metal on metal now, i am going to check the wires on the inside of the box but they should be secure
any help would be greatly appreciated
swez on 02/9/2007 07:10:45
Things to look at:
1. RCA's from CD player, (HU) to amp are working properly (Do you have audio signals on these lines?)
2. Are the subs wired correctly to each other and the amp?
We often use a portable player (CD/MP3) with headphone to RCA patch cables to test the amp inputs. Or, if you have a full range amp and this is working, use those lines as a temporary test for the amp. If the sub amp works now, your RCA's for the sub amp are not getting the signals from the HU, back to your sub amp. Either RCA cable issues or sub channel outputs in this HU are not set properly.
What HU, (CD deck) make and model are you using here?
Swez
kirchatndftbl on 02/10/2007 01:43:24
im using an eclipse cd3000 HU
swez on 02/10/2007 06:02:14
Check to see if your subwoofer channel outputs, (LPF) on this HU are activated. See manual for setup and adjustments for this feature. They start on pages 39-41 of this PDF file:
http://akamaipix.crutchfield.com/Manuals/099/099CD3000.PDF
Quotes from Crutchfield:
"Preamp Outputs: The CD3000 features three sets of 5-volt, low-impedance (55Ù) preamp outputs, including a non-fading output for a subwoofer. You can independently adjust the level of the non-fading output (0 to 6)."
"Sound Adjustment Mode: The Sound Adjustment mode allows you to apply an 80Hz low pass filter (LPF) on the non-fading output and a 100Hz high pass filter (HPF) on the front and rear outputs. The slope for the crossovers is 18dB/octave. In addition, you can choose between normal and reverse phase on the non-fading output, whichever makes the best improvement on the sound."
Swez
kirchatndftbl on 02/11/2007 02:05:45
the crossovers on the HU are on and its on normal phase
swez on 02/12/2007 12:10:22
Do you have other amp channels to test this sub amp with? (Front or Rear) channel RCA's might do the trick, if the sub amp is in working order and the subs are wired properly.
You may need to remove the amp and bench test it. A good car battery and charger should be sufficient to power the amp to reasonable levels.
Do you know the net ohmic load from the subs? Can test it with an Ohmeter. If your meter shows below ~0.7 ohms, this can trigger the amp to go into protect mode.
Swez
kirchatndftbl on 02/12/2007 12:43:30
im not sure of the net ohmic load and i dont have an ohmeter
swez on 02/12/2007 21:31:23
This is an important detail to know or you can damage your amp. A small investment of $15-20.00 will get you a nice, simple Digital Multimeter.
You can buy them at WalMart, Radio Shack, most good autoparts stores and even Home Depot. Every serious car audio buff shoul have one and know how to use it. This one is good and very easy to use:
http://www.radioshack.com/product/index.jsp?productId=2103174&cp=&fbn=Type%2FDigital&f=PAD%2FProduct+Type%2FDigital&fbc=1&kw=multimeters&parentPage=search
Swez
swez on 02/12/2007 21:42:37
If you have wired these subs subs properly, (Series/parallel) this will net a 1 ohm load to the amplifier.
Tech Tip: When measuring ohmic loads with a DC Ohmeter, I would expect you to see a reading of about 0.6 - 0.7 ohms on the meter. If you see a number well below 0.5 ohms, subs are not wired properly and can damage your amp.
What is the proper model number for your HiFonics amp? It is the Brutus series, (Bxi xxxxD series yes?) Is it the 1600 watt Bxi 1606D or other?
http://www.maxxsonics.com/hifonics/amps_brutus.html
Swez
ShootuhMcBustaCap on 02/12/2007 23:55:53
Funny this comes up....I have a multimeter, and not the slightest clue on how to use it! anybody care to enlighten me?
kirchatndftbl on 02/13/2007 00:10:07
i have the Bxi 1606D amp
ShootuhMcBustaCap on 02/13/2007 00:50:27
Also, not sure if this comment is relevant, but four one ohm coils in parrelel would produce a net load of .25 ohms correct? If this is the case, and said subs are improperly wired, say all in parrelel, I could definitely see a problem, as I have never heard of an amp stable at lower than 1/2 ohm. And if there is one out there, somebody point me in its direction!
kirchatndftbl on 02/13/2007 08:15:57
they voice coils are wired in series and then wired parrellel to the amp
http://img8.imageshack.us/my.php?image=2dvcseriesvcparallelsubs0gh.jpg
ShootuhMcBustaCap on 02/13/2007 08:59:15
Word. I kind of jumped in late here, just making sure.
swez on 02/13/2007 11:48:56
This is correct and your net ohmic load the amp will see is 1 ohm. However, when reading ohms with a DC based meter, we get a slightly lower number. DCr = DC and is not the same as AC impedance the amp outputs see from the speakers/subs.
Shootuh, what seems to be mystifying you about your meter? Please explain in a new topic. Am sure we can walk you through it. Is this a Digital display or a swinging needle type meter?
Swez
kirchatndftbl on 02/14/2007 00:20:58
the amp has a plugin for a balanced line inputs should there be something connected to that?
ShootuhMcBustaCap on 02/14/2007 01:38:17
Its a digital multimeter, and the display works and all, but when I put the test leads up to power and gtound on my amp terminals, there is no readout. This problem has been occurring with both batt+ and speaker terminals. I not sure if the meter is screwed up, or if i straight don't know how to use it. I gave up after about 15 minutes, and never messed with it since.
swez on 02/14/2007 08:27:17
We only used the balanced lines if the HU or Outboard signal processors offer Balanced Line out features too. Otherwise, the normal RCA cable are used and sufficient.
Swez
subs are Soundstream T4-12's 900rms 1800 peak
amp is Hifonics BXi 0606D class d monoblock amp 1600 rms x1 @ 1ohm
Replies (22)
Victor on 01/23/2007 15:39:24
http://www.clubknowledge.com/Car_Audio_FAQ/?t33
check out the image titled
"2 DVC Subs (Series VC’s, Parallel SUB’s)"
you could use this wiring technique... to obtain a total load of 1 ohm to the amplifier..
swez on 01/23/2007 16:18:15
You will want to wire each sub coils set in series. (This is 2 ohms/sub) Then, wire both subs in parallel to your amp output for a perfect 1 phm match.
The wiring configuration used is this one:
http://img8.imageshack.us/my.php?image=2dvcseriesvcparallelsubs0gh.jpg
Sweet subs and a good match on the amp. These subs are spec's at 1000 watts RMS/ea. However, 1600 watts RMS is plenty to push them well into the mid 140's dB of SPL too.
Are you going sealed, ported or other with these subs?
Swez
kirchatndftbl on 01/23/2007 16:51:44
im probably getting a new box soon but it will probably be ported
manufacturer recomends only ported but do you think sealed will be a better choice?
what guage speaker wire would you recommend?
swez on 01/23/2007 17:58:19
Ported subs tend to sound stronger and go lower too. Use the makers recommendations for airspace and porting recommendations and things should be smooth.
Consider tuning between 30-35 Hz., for these subs. Also, this amp has an Infrasonic Filter as well. Ported enclosure need that feature to protect your woofers.
Wire gage used for speaker line, is determined by power it must carry and length of wire used. A #12 gage line is rated to handle 2,400 watts. If you stay under 6 feet long of wires, good nuff. If you want to drop to #10 wiring, that's an option.
Swez
kirchatndftbl on 02/9/2007 01:30:52
i have my amp hooked up and theres a problem everything is wired correctly but when i turn on the cd deck music plays but the subs arent playing the amp turns on but nothing happens. Any suggestions on what could cause this? i fixed my ground wire and it is secure to metal on metal now, i am going to check the wires on the inside of the box but they should be secure
any help would be greatly appreciated
swez on 02/9/2007 07:10:45
Things to look at:
1. RCA's from CD player, (HU) to amp are working properly (Do you have audio signals on these lines?)
2. Are the subs wired correctly to each other and the amp?
We often use a portable player (CD/MP3) with headphone to RCA patch cables to test the amp inputs. Or, if you have a full range amp and this is working, use those lines as a temporary test for the amp. If the sub amp works now, your RCA's for the sub amp are not getting the signals from the HU, back to your sub amp. Either RCA cable issues or sub channel outputs in this HU are not set properly.
What HU, (CD deck) make and model are you using here?
Swez
kirchatndftbl on 02/10/2007 01:43:24
im using an eclipse cd3000 HU
swez on 02/10/2007 06:02:14
Check to see if your subwoofer channel outputs, (LPF) on this HU are activated. See manual for setup and adjustments for this feature. They start on pages 39-41 of this PDF file:
http://akamaipix.crutchfield.com/Manuals/099/099CD3000.PDF
Quotes from Crutchfield:
"Preamp Outputs: The CD3000 features three sets of 5-volt, low-impedance (55Ù) preamp outputs, including a non-fading output for a subwoofer. You can independently adjust the level of the non-fading output (0 to 6)."
"Sound Adjustment Mode: The Sound Adjustment mode allows you to apply an 80Hz low pass filter (LPF) on the non-fading output and a 100Hz high pass filter (HPF) on the front and rear outputs. The slope for the crossovers is 18dB/octave. In addition, you can choose between normal and reverse phase on the non-fading output, whichever makes the best improvement on the sound."
Swez
kirchatndftbl on 02/11/2007 02:05:45
the crossovers on the HU are on and its on normal phase
swez on 02/12/2007 12:10:22
Do you have other amp channels to test this sub amp with? (Front or Rear) channel RCA's might do the trick, if the sub amp is in working order and the subs are wired properly.
You may need to remove the amp and bench test it. A good car battery and charger should be sufficient to power the amp to reasonable levels.
Do you know the net ohmic load from the subs? Can test it with an Ohmeter. If your meter shows below ~0.7 ohms, this can trigger the amp to go into protect mode.
Swez
kirchatndftbl on 02/12/2007 12:43:30
im not sure of the net ohmic load and i dont have an ohmeter
swez on 02/12/2007 21:31:23
This is an important detail to know or you can damage your amp. A small investment of $15-20.00 will get you a nice, simple Digital Multimeter.
You can buy them at WalMart, Radio Shack, most good autoparts stores and even Home Depot. Every serious car audio buff shoul have one and know how to use it. This one is good and very easy to use:
http://www.radioshack.com/product/index.jsp?productId=2103174&cp=&fbn=Type%2FDigital&f=PAD%2FProduct+Type%2FDigital&fbc=1&kw=multimeters&parentPage=search
Swez
swez on 02/12/2007 21:42:37
If you have wired these subs subs properly, (Series/parallel) this will net a 1 ohm load to the amplifier.
Tech Tip: When measuring ohmic loads with a DC Ohmeter, I would expect you to see a reading of about 0.6 - 0.7 ohms on the meter. If you see a number well below 0.5 ohms, subs are not wired properly and can damage your amp.
What is the proper model number for your HiFonics amp? It is the Brutus series, (Bxi xxxxD series yes?) Is it the 1600 watt Bxi 1606D or other?
http://www.maxxsonics.com/hifonics/amps_brutus.html
Swez
ShootuhMcBustaCap on 02/12/2007 23:55:53
Funny this comes up....I have a multimeter, and not the slightest clue on how to use it! anybody care to enlighten me?
kirchatndftbl on 02/13/2007 00:10:07
i have the Bxi 1606D amp
ShootuhMcBustaCap on 02/13/2007 00:50:27
Also, not sure if this comment is relevant, but four one ohm coils in parrelel would produce a net load of .25 ohms correct? If this is the case, and said subs are improperly wired, say all in parrelel, I could definitely see a problem, as I have never heard of an amp stable at lower than 1/2 ohm. And if there is one out there, somebody point me in its direction!
kirchatndftbl on 02/13/2007 08:15:57
they voice coils are wired in series and then wired parrellel to the amp
http://img8.imageshack.us/my.php?image=2dvcseriesvcparallelsubs0gh.jpg
ShootuhMcBustaCap on 02/13/2007 08:59:15
Word. I kind of jumped in late here, just making sure.
swez on 02/13/2007 11:48:56
This is correct and your net ohmic load the amp will see is 1 ohm. However, when reading ohms with a DC based meter, we get a slightly lower number. DCr = DC and is not the same as AC impedance the amp outputs see from the speakers/subs.
Shootuh, what seems to be mystifying you about your meter? Please explain in a new topic. Am sure we can walk you through it. Is this a Digital display or a swinging needle type meter?
Swez
kirchatndftbl on 02/14/2007 00:20:58
the amp has a plugin for a balanced line inputs should there be something connected to that?
ShootuhMcBustaCap on 02/14/2007 01:38:17
Its a digital multimeter, and the display works and all, but when I put the test leads up to power and gtound on my amp terminals, there is no readout. This problem has been occurring with both batt+ and speaker terminals. I not sure if the meter is screwed up, or if i straight don't know how to use it. I gave up after about 15 minutes, and never messed with it since.
swez on 02/14/2007 08:27:17
We only used the balanced lines if the HU or Outboard signal processors offer Balanced Line out features too. Otherwise, the normal RCA cable are used and sufficient.
Swez
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