Summary:
Floored me straight out of the box. Made both my Grado SR-80's and AKG K-240's sound better than they ever had. Smooth, dynamic, clean, and never fatiguing.

As a preamp it is invisible, outperforming my Forte 44 by a long shot.

As an integrated, it is also quite nice, but intended for either background listening, or use in the nearfield, with smaller speakers.

Strengths:
Utterly transparent, flexible.

Weaknesses:
none when used as intended

Similar Products Used:
Audio Alchemy HPA1.0, various integrated headphoneoutputs, homebrew.

Summary:
I purchased my MID for use as a headphone amplifier. Little did I know that I was also getting one of the most neutral sounding pre-amplifiers I had ever heard (or not heard). It excells at both of these tasks and is a joy to listen to every time. It also works quite well as an integrated, but you should be realistic about the volume and control you expect from it. Overall, I highly recommend it, especially with the higher end Sennheisers.

Associated Equipment:
Marantz CD63se
Sennheiser HD580
Grado SR60
NHT S1 (when using it as an integrated)
McCormack DNA 0.5se (when using it as a pre-amp)

Strengths:
Excellent sound, flexibility (headphone amp, integrated amp, pre-amp).

Weaknesses:
Wish it had a speaker toggle.

Similar Products Used:
None.

Summary:
Bad Points:1.) Conrad-Johnson now manufactures this model. The wait could still be long. I waited four months for mine.
2.) I wish it had more inputs!

Good Points:
1.) Adjustable gain. As long as you use the low gain setting, you no longer have to keep the volume at MIN. And besides, the low gain setting sounds the best.
2.) Has two inputs, not one.
3.) Has two Neutrik headphone jacks. Now you and a friend can listen simultaneously.
4.) Runs cool.
5.) Has speaker binding posts, so you can hook up (and burn-in) speakers, in a pinch.

I have found the McCormack MID to be indispensible, when it comes to comparing single-ended interconnects. This thing is revealing, yet, I never find it harsh-sounding. But most of all, I use this thing every night, before I go to sleep. Let's just say that I get so involved with my music, that I end up getting less sleep than I should.

The MID forms the heart of my bedroom system. I am currently using the CAL Delta, Theta Cobalt 307, and Creek T43 in front of the MID. The MID is so good, I wish the darn thing had more inputs! That way, I could listen to more of my sources. Nevertheless, EVERYBODY should have an MID in his/her bedroom. Forget about that stupid Bose Wave radio.