I looked at the GX before getting a deal on a 4month old RMX 1450. I wasn't thrilled about the cooling on the GX. In a closed cabinet it would intake it's own exhaust.
Input sensitivity about the same as other pro amps. RCA inputs are no advantage. I use a 1/4" TS to rca cable to the receiver. No hum. I forgot to turn the 1450 off the other evening and left it on full gain. Never heard a peep from it. No hum, no hiss, no fan noise, no clicks. Didn't realize till next day when I saw the power light on. The 1450 weighs 40lbs but I only had to move it once.
Guess I should have specified the intended use being as a mains amp
an alternative to the EP2500 for those who are afraid of using 1/4" TS to F-RCA adapters
These amps are not bridgeable
Been using EP2500 for 2 yrs now for mains. Like QSC rmx series, no hum, no hiss and no clicks even at max gain. The source is Oppo 980H with a built-in decent DSP. This combo sounds good on M-Audio high end studio monitors
That is correct. These are 11 yr old passive monitors which sound so good that I decided to try the Berry Passive B2031P in another room. These babies sound wonderful too. I have a TrueRTA graph somewhere and was amazed to see the measurements. All the amps have low dB fans though.
On another note, recently I had queried about Sierra-1 and the manufacturer came back saying that their monitors are very well suited for EP2500, QSC and Tapcos. I guess it is obvious not to push them hard with these amps.
We are talking about torque rather than HorsePower with EP2500 and QSC RMX series.
Well they are great for a mains amp, I just never woulda though people would be using them on small bookshelf speakers. I am not sure why any speaker would be unsuited for an EP2500, they should work well with anything, unless you had a speaker that was less than two ohms or something. A bridged EP2500 can drive even the most capable mains, such as the LS9's or other high output speakers and down to the smallest of speakers. The issue becomes when it become impractical to drive your speakers with such a beefy amp. BTW, why do you need torque when driving those speakers?