Problem with Brand new DJ amp

[Serj22]

I got an amplifier to use for both playing guitar, microphone etc, to add to my collection, and I was trying to test it with just a subwoofer off of my receiver to see if it worked before I unpacked one of my mics or anything. I have it all plugged in, and the fans are a little loud, but no big deal. Anyway, the thing seems like even though it's plugged in, (I used a RCA out from the subwoofer out on the receiver, to a music cable to the "B" input on the amplifier) and no matter how much I turn up the gain on the amp, it doesn't do anything. It's a real cheap amp made by Pyle/Pyramid/Lancaster/Crap, but I should at least expect it to work, yes? Any ideas, or can I just not do an RCA to headphone conversion like that?

 

[njedpx3]

I got an amplifier to use for both playing guitar, microphone etc, to add to my collection, and I was trying to test it with just a subwoofer off of my receiver to see if it worked before I unpacked one of my mics or anything. I have it all plugged in, and the fans are a little loud, but no big deal. Anyway, the thing seems like even though it's plugged in, (I used a RCA out from the subwoofer out on the receiver, to a music cable to the "B" input on the amplifier) and no matter how much I turn up the gain on the amp, it doesn't do anything. It's a real cheap amp made by Pyle/Pyramid/Lancaster/Crap, but I should at least expect it to work, yes? Any ideas, or can I just not do an RCA to headphone conversion like that?

A lot of music does not send any signal to the Subwoofer. Is there any other pre-out you could hook it too, like front left or front right ?

Good Luck!

Forest Man

 

[Serj22]

I'm going to try that, I tried just swapping the rca to a stereo output on the back of the amp, and still nothing. I don't want to start cutting and splicing wires yet, as I'm thinking the amp may not work which would be a drag.

 

[WaynePflughaupt]

(I used a RCA out from the subwoofer out on the receiver, to a music cable to the "B" input on the amplifier)

or can I just not do an RCA to headphone conversion like that?

Which is it? Are you using the receiver's sub output for the feed to the amp, or the heaphone jack?

Regards,
Wayne A. Pflughaupt

 

[Serj22]

No, I didn't do the headphone jack because that would make everything go out to there, I was trying to use it to power a sub-woofer, so I used a Y-adapter off the sub-woofer out. I figure it maybe just doesn't create enough of a signal for the amplifier to, well, amplify, or something. On the amplifier, there are two 1/4" inputs, or music cable inputs, then 2 microphone cable inputs with no way to select between the two, so I'm guessing side A is bridged to side A inside anyway, so that doesn't matter. As far as output, there are 4 wire terminals, and the two in the center can be used as a bridge, or using two seperate channels. It runs each channel at 250w rms supposedly and there is a big ad saying "1000w" so I think 250 is a reasonable assumption. The instruction manual was written by an idiot, who had no idea what the product was.

So, I have an RCA going out from the SW jack, then to a single RCA/dual 1/4" adapter and then plugged into the amplifier, and I've tried bridge and unbridged, I'm assuming the SW out is just not providing a signal to it or something. Is this something I should use a PRe-Amp for or an Equalizer maybe before it reaches the amp? The amp is rather simple. Two control knobs and an "on" switch.

 

[WaynePflughaupt]

Make sure the amp's knobs are full clockwise. Make sure the receiver's sub output is turned all the way up. Make sure the 1/4" connectors are the TS ("mono") variety, not TRS ("stereo").


Regards,
Wayne A. Pflughaupt

 

[markw]

Why complicate matters.

Keep it simple. First make sure it works.

If you've got RCA jacks on the opposite end of that cable feeding the amp, just plug it into a CD or DVD player, tape deck, tuner, whatever... Any line level source should prove it that it works, or doesn't.

while you're at it, chrck the amp's instructions and your kludged cabling.

Heck, break out a microphone and plug it directly into the amp just to see if it works at all.

 

[Serj22]

You know what I didn't think of that. I got a CD player still sitting out I might as well try. AS for a mic, I can't find the box I packed that stuff in. I'm in the process of moving and have packed most of my music equipment, Guitars, mic, amps, etc... I'm going to try the cd player approach and attach it to just one speaker on the amp or something.

I checked and the 1/4" is definitly mono on the plugs I'm using.