Axiom Home Page Forums General Discussion Technical Questions EP350v2 versus EP350v3 specs

so far I like what I'm hearing compared to the old 600 amp, I'll try some more testing....seems to be more musical with more punch so far.....

That's exactly what I'm looking for!

You don't say!

I guess the question to ask is the new amp making it punchier because the old one had a problem or is it due to the higher cut off point?

Double post

ok, this may be a Jakeman question, but I noticed something that makes no sense. I have my subs daisy chained togethor, so I have receiver to 350(1) to 350(2) to 600. I've tried using seperate coax lines to them but I get the same results with the spl meter, so looks like daisy chaining is ok. ?

Anyway, I noticed something weird tonight. I'm using the SMS-1 to just plot my graph right now, I am not running any of the subs throught it, just using the mic to see what happens as I move mysubs around, etc.

Anyway, I have a very high hump around 40hz or so, so I was trying to move my 600 around, wewwww, to see if that helped. So then I turned off the power to the 600 and the graph didn't change much, other than the slope fell off sooner in the lowww hz.

Then I unplugged my line in cable to the 600 and my graph from 25-40hz pegged at the top range of the SMS-1 graph. Plugging the cable back into the Line In on the 600 dropped the graph as I was seeing before.

If the sub is turned off and all I am doing is unplugging/plugging in the line in cable, how can the change the graph unless there is some type of feedback going back to the 350's in the chain?

post count whore



Randy, I am perfectly willing to give you a free ride on the validity of your perceptions, despite the lag time and placebo effect. Scientists among us may dispute you, though.

Two possibilities:

1. The subs are loading down your Denon. Unplugging a sub relieves the load.

2. The phase relationship between your 600 and the other subs is causing a dip when the 600 is turned on and a rise when it is off.

Regarding the first point, I cannot daisy-chain a sub to my 600 as my Denon gets over-loaded and output is reduced. I've tried daisy-chaining my Sony with a Hsu and have had no problems. But if I try that same Sony with the 600, I end up having loading problems.

Although I am not thrilled with this, I doubt that I will ever use multiple subs so I am just living with it.

Do you get the same results if you use a Y-cable or Y-adapter to split the signal at the receiver sub-out?

Another thing I've noticed is that when both 350's are turned on up front, I get a low humming sound from my center channel speakers. Is this a 60hz hum or whatever you guys call it?

It goes away or diminishes when I turn one of the 350's off, and totally goes away with they are both off.