Newby's question about dual coil driver with plate amp

minye · 6th June 2007, 12:14 AM

I am trying to build my first subwoofer. I have got a 300+ watt (rms at 4 ohm) plate amp and a TC sounds 1000 12" driver.

http://www.tcsounds.com/tc1000.htm

But I might have made a mistake when perchasing the driver. It is a dual 4 ohm voice coil. I know I should find another 2-channel power amp to work with this driver to meet the specs. But I wonder if I can still use the plate amp drive the dual coil driver since it is already there. And how to connect them?

Thanks in advance.

Cal Weldon · 6th June 2007, 12:26 AM

You can still do it. If your amp is stable at 2 ohms, wire the coils in parallel. If not wire them in series.

Monoceros · 7th June 2007, 02:30 PM

Well, my suggestion is if you're not sure your amp can work stable at 2ohms loaded, just wire your bass driver units in series.

minye · 7th June 2007, 05:32 PM

What do you think KG-5230 plate amp?

http://www.madisound.com/catalog/pro...roducts_id=371

Can it handle 2 ohm?

Eric Baker · 7th June 2007, 07:40 PM

From the looks of it no, it cannot handle 2-ohms. Just wire it in series for a total of 8-ohms, which is within the recommended impedence range.

Cal Weldon · 8th June 2007, 02:52 PM

Agreed.

allredp · 6th September 2007, 08:13 AM

I have an old M&K V2-B 12" sealed sub that blew its circuit board. M&K went under in February while holding my circuit board for repairs. Great timing, eh?

So, I found a vendor (ApexJr.) who picked up some surplus M&K sub amps (with higher wattage than the original), and I bought one.

Once I started to test the amp before installing it, I realized that the woofer is a dual voice coil. Incidentally, I hooked up the leads to one (side?) of the woofer and tested it to be sure I hadn't blown the woofer. It pushed fine, so I'm happy about that.

My question: since my amp only has one set of leads, is it bad/wrong/ill-advised to just hook up the single +/- leads to the woofer? What are the other options? Are there DVC amps, or just two amps for a DVD? Help!

As far as I can tell, my original M&K amp appeared to have two sets of leads rather than two discrete amps.

Sorry I'm so dumb, but I could really use some help so I don't destroy what's left of a great old subwoofer.

Thanks,
Phil

6th June 2007, 12:14 AM	#1
minye diyAudio Member Join Date: Jun 2007	Newby's question about dual coil driver with plate amp I am trying to build my first subwoofer. I have got a 300+ watt (rms at 4 ohm) plate amp and a TC sounds 1000 12" driver. http://www.tcsounds.com/tc1000.htm But I might have made a mistake when perchasing the driver. It is a dual 4 ohm voice coil. I know I should find another 2-channel power amp to work with this driver to meet the specs. But I wonder if I can still use the plate amp drive the dual coil driver since it is already there. And how to connect them? Thanks in advance.

6th June 2007, 12:26 AM	#2
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	You can still do it. If your amp is stable at 2 ohms, wire the coils in parallel. If not wire them in series. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

8th June 2007, 02:52 PM	#6
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Agreed. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

6th September 2007, 08:13 AM	#7
allredp diyAudio Member Join Date: Sep 2007	how to wire? I have an old M&K V2-B 12" sealed sub that blew its circuit board. M&K went under in February while holding my circuit board for repairs. Great timing, eh? So, I found a vendor (ApexJr.) who picked up some surplus M&K sub amps (with higher wattage than the original), and I bought one. Once I started to test the amp before installing it, I realized that the woofer is a dual voice coil. Incidentally, I hooked up the leads to one (side?) of the woofer and tested it to be sure I hadn't blown the woofer. It pushed fine, so I'm happy about that. My question: since my amp only has one set of leads, is it bad/wrong/ill-advised to just hook up the single +/- leads to the woofer? What are the other options? Are there DVC amps, or just two amps for a DVD? Help! As far as I can tell, my original M&K amp appeared to have two sets of leads rather than two discrete amps. Sorry I'm so dumb, but I could really use some help so I don't destroy what's left of a great old subwoofer. Thanks, Phil

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7th June 2007, 02:30 PM	#3
Monoceros diyAudio Member Join Date: Jun 2007	Well, my suggestion is if you're not sure your amp can work stable at 2ohms loaded, just wire your bass driver units in series.

7th June 2007, 05:32 PM	#4
minye diyAudio Member Join Date: Jun 2007	What do you think KG-5230 plate amp? http://www.madisound.com/catalog/pro...roducts_id=371 Can it handle 2 ohm?

7th June 2007, 07:40 PM	#5
Eric Baker diyAudio Member Join Date: Mar 2007	From the looks of it no, it cannot handle 2-ohms. Just wire it in series for a total of 8-ohms, which is within the recommended impedence range.

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