Review: Audio Research Corporation HD 220 Amplifier


Category: Amplifiers

My musical tastes include primarily classical, jazz, folk/blues and some exceptional rock. Specific recordings can be discussed via phone @ 610-721-1304. Soundstaging, dynamics, transparency and coherence are paramount, while the correct tonality and warmth are of equal concern. In other words I need it all to be right or else I sell the stuff! My HD 220 has 300 hours on it at this point and it is exceptional indeed. My recent decent into Krell evo solid state gear left me wanting so I sold the rig and started anew.

When a system is in the "zone" for me it conveys lifelike dynamics, accurate tone, clarity with warmth and soundstaging to die for!! This amp does it like no other I've had on all types of music (taken as part of my current setup). One major note...USE THE STOCK POWER CORD!!! The HD 220 started to amaze me aftethunderousr I decided to try it's own power cord in place of my reference cords. As long as my ref 3 has a great power cord all is well. The amp conveys a sense of limitless power with explosive yet controlled dynamics...it is effortless but with great force and dynamic swing!! Treble is extended and full of sparkle but grainless and pure at the same time. Midrange is full and neutral with a tad of warmth, but not overdone. Bass is earth shaking and well defined with amazing definition. Focus and placement of instruments is the best I've heard. Width and depth of the soundstage is top notch as well. Palpability and presence are eerie baby...spooksville!!

Compared to the other great tube amps past and present it connects on excitement, dimensionality, dynamics and extension without the tube haze, lethargy and softness often found with their presentation. I prefer it over the 110 for real world reasons and for purely musical ones. Overall it takes one away with the music where very few other components take you!!

Money is no object for me ...the HD 220 is staying..it's that good!!

Associated gear
ARC Reference 3 preamp
Krell SACD standard V5.1
Krell Resolution 2 loudspeakers
MIT V2.1 Oracle IC's and speaker interfaces
Transparent MM power cord (ref 3)
MIT AC2 power cord (Krell SACD)
ARC stock power cord (HD 220)
Wattgate recepticles
Dedicated 20amp lines

Similar products
ARC VT100, VT200, VS110, VM220's, Ref 110, Ref 610T's
Krell FPB 600, 400cx, 350Mcx, evo 402
Levinson 336
128x128dave_b
Just thought I'd mention that I had faulty wiring on my Reference MM power cord (had it re-terminated for 20amps and it was wired wrong). I fixed it myself today and played the system for a couple of hours...everything good about the amp became stunning. The entire presentation has closed the gap between the HD 220 and the reference 110 and 210...it is absolutely huge, open, airy, lush and crazy dynamic..the midrange has become glorious and oh so vivid..bass is subteranean with great pitch, treble delicate and incisive without any edge or harshness. In other words the HD 220 is closer to a true tube amp than I originaly thought, but without limitaions at the extremes...power seems inexhaustable! This amp is a no brainer..I fully expect it to garner much praise in the months and years to come.
Dave, I'd be very intrigued if you managed to listen to your HD220 powered by an Elrod Statement or a Purist Anniversary PC.
Tried the purist..not my cup of tea! Have not heard anything superior to the Transparent MM or MIT Ac2's.
I revisited the stock power cords again on the amp first and then the ref 3 with currently 300 plus hours on the equipment. The ARC power cords get the dynamics and tonality dead on with exemplary transparency. My reference cord on the sacd standard provides all the purification needed for the rest of the audio chain, given my Oracle IC's also deal with signal distortion farther along the signal chain.
My paradigm has shifted as to what is possible in audio! Final tweaks are in.....Transparent MM power cord on Ref 3 and SACD Standard with ARC cord on HD 220. Changed outlets for front end...used outlet extender..big mistake!
Words do no justice to having a symphony orchestra in my listening room!!!