Found one of these used at a good price:
http://media.qscaudio.com/pdfs/Specific ... l_spec.pdf
It's rated for 70v systems only. I'd want to use it as a monitor amp. Should it be able to drive low impedance loads directly, or possibly by bypassing something inside? It's not worth it to me if I have to buy transformers.
QSC CX204V
- BrentEvans
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- Joined: Thu Oct 09, 2008 10:38 am
- Location: Salisbury, NC
QSC CX204V
99% of the time, things that aren't already being done aren't being done because they don't work. The other 1% is split evenly between fools and geniuses.
- RubiconProSound
- Posts: 597
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Re: QSC CX204V
I've got the CX404 and I use it for everything, it's a great amp but... it's the low impedance version and I know you won't be able to use the 204v without a transformer.
I guess if the price is really good you could always mount the step down transformers in the amp rack with the amp and then just use standard NL4's at the back.
Info on 70 volt wiring...
http://www.horrorseek.com/home/hallowee ... akers.html
http://www.alectrosystems.com/audio/Dis ... 70volt.htm
http://www.docstoc.com/docs/2479185/70-Volt-Cheat-Sheet
http://www.yorkville.com/default.asp?p1=6&p2=17&p_id=73
I guess if the price is really good you could always mount the step down transformers in the amp rack with the amp and then just use standard NL4's at the back.
Info on 70 volt wiring...
http://www.horrorseek.com/home/hallowee ... akers.html
http://www.alectrosystems.com/audio/Dis ... 70volt.htm
http://www.docstoc.com/docs/2479185/70-Volt-Cheat-Sheet
http://www.yorkville.com/default.asp?p1=6&p2=17&p_id=73
Built so far:
AutoTuba. TAT, T18, T30, T39, SLA, SLA Pro, DR200, Omni 12TB, Omni 12 Sub, Omni 10.5,
AutoTuba. TAT, T18, T30, T39, SLA, SLA Pro, DR200, Omni 12TB, Omni 12 Sub, Omni 10.5,
Re: QSC CX204V
If this route is taken it is extremely important to use the best transformers available.
Syd
Syd
- BrentEvans
- Posts: 3041
- Joined: Thu Oct 09, 2008 10:38 am
- Location: Salisbury, NC
Re: QSC CX204V
That's kind of what I was thinking. It's not worth spending almost $300 in transformers & parts (and dealing with all the aggravation) to make a $150 used amp work. By the time I spend that, I can buy a couple of new 2 channel amps.
99% of the time, things that aren't already being done aren't being done because they don't work. The other 1% is split evenly between fools and geniuses.
Re: QSC CX204V
And on top of that; I'm betting there would be sonic compromise.By the time I spend that,...
70V systems have their uses, but aren't appropriate for your purpose.
Syd
- Zack Brock
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Re: QSC CX204V
I had a QSC CV and it had standard binding post outputs for regular, non-transformered speakers in addition to the transformer outputs. Looking at the pics, it appears your model does not have this type of output available. I wouldn't know of any way to defeat the transformer requirement so that you could use them other than in 70V mode.
Zack Brock
Authorized Builder, Northeast Florida (Greater Jacksonville Area)
WavePulse Acoustics | zackbrock@macpulse.com | http://www.bestbasscabs.com/
Authorized Builder, Northeast Florida (Greater Jacksonville Area)
WavePulse Acoustics | zackbrock@macpulse.com | http://www.bestbasscabs.com/