Phoenix Gold Phorum

Not sure exactly what this means and if the amp is even good. I get very mild bass (no thump really) with the AMP hooked up, but I just noticed that a red light is illuminated and it says "D106" next to it.

Never used the amp before and I will be back soon with the model of the amp.

Thanks!

ZX600ti

is the model

Im assuming that you are talking about the red led behind the left window? Thats normal when your amp is on.

What "left" are you talking about?

Not to sound like a moron...

there are two windows on the amp, one on your left and one on your right. The red light is supposed to be on in the window on the left.

What is it hooked up to speaker wise?

Yup, it's supposed to be there. There are actuallythree more that sit back underneath the xover board and you can't even see them with the amp together... Them being on is a good thing, when they go OFF is when you have a problem...

Anyhow, I agree w ttocs, what do you have hooked up to the amp for speakers? There could indeed be a problem with the amp, but the Zx600Ti will normally easily hit its 500watt ratting. However, if the amp plays clear and undistorted, it is more likely a problem with the speakers or the settings. You didn't inadvertently set the amps xover to highpass did you?

Later,
Jason

Jacampb2 wrote: You didn't inadvertently set the amps xover to highpass did you?

Later,
Jason

That could never happen

Never done it myself, you can't prove a thing........

I have 2 12" Polk GNX subs. I have One sub hooked up to one channel and the 2nd sub to the other.

I will check my settings again to make sure they are right. Any suggestions on what would be the best setup?

Thanks!

The settings look good to the best of my knowledge.

What do you recommend I have the settings at?

I get really good Bass in some songs, but it sounds like I get no bass whatsoever in other songs. Any suggestions?

what head unit do you have and what set of rca cables do you have hooked up? are you using any surround sound modes on the head unit? are the subs single or dual voice coil, what ohm are they and how do you have them wired? its strange that some songs have bass and others dont, are they good quality cds or downloaded mp3s? the ti600 puts out quite a bit of power, it should run 2 twelves without a problem. i usually like to cross over my subs around 80hz. do you own a voltage tester?

I'll add some more questions/thoughts. Are the subs sealed, ported or bandpass? Ported and band pass enclosures have a relatively narrow frequency range that they are tuned for. This means that a song which has program material outside of that frequency range will be much lower output.

Check your wiring, are you sure that the subs are in phase with each other, and with the rest of the audio system? If you have the subs wired in stereo as it sounds, and one is out of phase with the other, then it is possible that some program material with better track separation (more stereo) will sound as if it has more output, where a track with poor separation (more monaural) will tend to cancel more in an out of phase scenario. Do not underestimate the impact of a driver that is 180° out of phase. If you have never seen/heard it before, it is most impressive. You can have the drivers just wailing away and have virtually no output.

This was touched on above, but cross over points will have a huge impact on output as well. Very similar to the limited bandwidth of a bandpass or ported enclosure, cross overs electrically limit the bandwidth that a driver can reproduce (passive) or that an amplifier can amplify (active). If your program material has most of it's output higher than the crossover point, then there will be very little output from the subs/amplifier. That is the whole point of setting up xovers, it allows you to send the appropriate signal to the appropriate drivers. If that is the case, and your xover points are tuned correctly, then it may be that you require more midbass for the songs that seem to be lacking in output.

And last is compressed media, like MP3s and WMAs. Depending on the compression scheme and sampling rate, you can loose a lot of acoustic information that was in the original recording, but the compression algorithm tossed out because it was deemed inaudible or redundant. Downloaded music can very dramatically in quality, the only way to know exactly what you are getting is to do it yourself.

Sorry I got a bit long winded. I hope the above helps at least a little bit. Long story short, we need you to give us a lot more information if we are going to help accurately diagnose your issues. One other piece we could use is what size wire did you use to power this amp, and are there any other amplifiers that share power from teh same cable?

Later,
Jason