4 Channel Power Amplifier

[91 dB] Awesome center channel. Hooked up an amplifier so that I can get that extra power that my receiver couldn't provide. This beast woke.up and what a sound. Klipsch, please make a stand or wall mount for this speaker.

[2-Tier Class-H] The QSC MP-A20V Multi-Channel Amplifier plenty of power and the sound is fantastic. We are using the 70v configuration and have no problems or complaints.

[2 RU] Great power Amplifier.

[Peak] This amplifier has the power and quality I was looking for. It is also much lighter than the old amplifier that it replaced.

[Blue] I use a 61-key MIDI controller with my laptop as a keyboard in band, and recently purchased a Yorkville keyboard amplifier. The amplifier has unusual inputs... two quarter inch jacks in channel 2, which is the channel optimized for keyboard... I was surprised to find a chord that was exactly what I needed, with an eighth-inch headphone end to plug into my laptop and two quarter inch ends to plug into the amplifier. The chord fits my setup perfectly and appears to maintain audio quality very well.

[Solid-State] Was looking for something to problem solve RCA line level problems. In working with our choir, I run a stand-alone CD player into a Roland keyboard amplifier that even has RCA inputs, but the level was too hot: I barely turned up the amplifier volume and there was too much sound. This device solved the problem. It works as a handy attenuator (whether or not stereo separation is what one is seeking), and it works as a channel separator too. I've used it with choral stereo split tracks (vocals on left channel, orchestral accompaniment on right). I can play a song for the group from the CD, using both channels, then drop out (or just lower, if we want) the vocal track as we learn to sing to the accompaniment. Practical, well-built product!

[Less than 0.1%] The Marantz mm7025 Power Amplifier has tremendous reserve power for my power hungry 4 ohm Elac Uni-Uni tower speakers. The music comes out unrestrained with excellent pacing, articulate details and sweet tube like tone. Bravo Marantz! You hit this one out of the park with this amplifier!

[2.1] is very good in all features, it has a wattage power of 120 per channel.

[0.65 lb] I needed to have the ability to have phantom power for the AEA TRP preamp. I have been looking for a 4 channel Phantom Power supply. This one fits in the rack, and works well with the AEA TRP and CloudLifter or phantom power microphones. Regards, Joe

[Closed-Back] I was really pleased with how loud the amplifier was. It was able to power even 80 ohm dt770's with enough volume to use as a monitor for a drummer during a live music session. My only grievances are it's pretty large so wearing it via the belt clip is awkward and the printing on the power adapter says it requires a 9V center positive adapter when in reality it requires a 9V center negative adapter. In a way this is actually way more convenient because most dc 9v adapters are center negative.. but it was a little annoying because I ordered the indicated adapter which didn't work so I then had to trace the board to figure out that mistake.. Hopefully they fix this error at some point but otherwise it's a great product.