Anthony F Greene

“This amp is the perfect pairing for my Klipsch Cornwall IVs. They sound so lively. They scream "Turn me up". I love how many inputs this amp has. Rare these days.”

2 Helpful Report

Posted 3 months ago

Bill Corbett

Verified Reviewer

“The PrimaLuna EVO 400 is fantastic. Loving it.”

Helpful Report

Posted 4 months ago

Robert Dean From Washington State

Unverified Reviewer

“I've been using solid state amps since I started building stereos 35 years ago. The Prima Luna Evo 400 integrated is my first tube amp. After getting my new Cornwall IVs in late January (23) I decided that my Yamaha AS701 was really paired better with my Heresy IVs and after a heck of a lot of research, I decided on the PLI400. So I did the surgery getting it installed in my listening room and powered it up. The tubes got nice and hot and started emitting an odor that filled the room. I guess this is just what new tubes do. This brought a question to my head though. When you buy Upscale Audio tubes, they claim to burn them in for a period of time. Hmmmm, so they don't do this for the tubes installed on the new amps they sell? The odor went away completely after two uses. Anyway despite not having any tube burn in time I immediately noticed that I had been missing out on this tube thing. Gorgeous stereo ear candy and this thing doubles as a second fire place. Those tubes get real hot. I had to move from a shelf to the top of the cabinet as there were some input switching issues because it was running so hot. This hasn't happened since I moved it. I also noticed that there is no need to chase bass matching from my subwoofer. The sub just follows nicely. I rarely adjust my subwoofer anymore. I'm a vinyl lover and most of my listening is from the turn table. I use the amp's phono stage; its silent and the music flows with deep imagery and a broad sound-stage. Listening to my vinyl catalog is a whole new experience. Now its been two months or so and I'm fairly sure those tubes are all burned in. This thing has very nice output transformers. Bass is deep and seems to appear out of the ink. All the musical notes mature and decay exquisitely. As a rock and metal fan, I wonder what tubes are next in this thing. I watched a YT review recently and a fella said that he wouldn't listen to metal on a tube amp. Well my ears love it. One Saturday while my wife was away I chose a RATM album on vinyl and got it quite loud. I couldn't stop smiling. It's just sooo good. Next was Metallica's Black Album. Thundering detail that I never heard before and the smile was there. The power of this thing is immense. Most of my listening has the volume pot at about 8 o'clock. It's rare that I get it past 10 cause thing thing just plain rocks! They do need to put a better input switching pot on it. Its clunky and doesn't at all match the feel of the volume knob. Small taters. Lastly, this amp is a heck of a lot of money for us small guys but I have to say that it' s worth the hard work it took to pay for it.”

2 Helpful Report

Posted 1 year ago

Lehman Black

Verified Reviewer

“Sometimes what appears to be the simplest piece of audio equipment can be the most powerful and expressive. With just 2 front knobs and no meters or balance controls the EVO 400 has brought my moderate size listening room to life like no other previous amplifier has before. Using the stock E34 tubes and driving my beloved LSA Statement floor standers (88db sensitivity) the music finally sounds so life like I was brought to tears in less than 50 hrs of break in! I have owned tube integrated amps from Rogue Audio, Octave, Ayon, Audio Research and Conrad Johnson with many costing 2-3 times as much as the EVO 400, and this unit betters them all. Running the plate voltage on the tubes low has no deleterious effects on the sound and will only preserve the life of the amp. Combine that with the Adaptive Auto Bias, the bad tube indicator, dead quiet inputs and the unbelievable price and you have the best integrated amp out there.”

6 Helpful Report

Posted 1 year ago

“Absolutely love the EVO 400 I. Falling in love again with my old vinyl collection while exploring new amazing-sounding music with the Rose 150B streamer. Thanks to Sean for outstanding service with my purchase from Upscale, an enjoyable buying experience.”

3 Helpful Report

Posted 1 year ago

“The best amp I have ever owned. Paired with Focal 936 speakers a match made in Heaven. Thank you Joel for your expert advice. Highly recommended.”

PrimaLuna EVO 400 Tube Integrated Amp Black Reviews