Great unit, blows away the Yamaha, and I picked it up for
$800, new. What a deal. I highly recommend this unit. You won't be disappointed. Ac-3 is just perfect.

I replaced a Marantz SR-96 receiver and the Model 870 DD decoder. The 1A1Z soundwas magnificent. It brought every piece of equipment I have to a new dimension.
This intregrated amp drives 4ohm loads with ease. Give it a try

To Anthony D, and all others:

A factory-authorized DTS Upgrade is available for the IA-1z from MSB. (www.msbtech.com)

Definitely worth the price of admission, the Nak's amps really shine on DTS material.

I actually bought my IA-1z with the DTS option already put in by MSB. There is one glitch on the LD input side .. don't know specifically what's wrong, but it's merely an annoyance, and not a fact at all on the DVD digital input.

As I've stated in a previous review of this unit, quite simply, it's awesome. Compared to some of the mass market stuff that's available in its price range (DSP-A1, and possibly Denon, though I don't have any experience with their newer models), there simply is no comparison. From movies to _excellent_ 2 channel stereo (to make use of those thousands of recordings), this piece cannot be beat.

The 2 channel stereo reproduction is what sold me. I needed a system that could do both extremely well, and I didn't get that from the DSP-A1. Sidenote: at the time when I purchased this unit, the DSP-A1 was really the only other viable product in this price range.

Pure,Clean Power

NONE

After living with the Nak for a little over 5 month's I had to submit another review, this is truely a great receiver.
2 channel stereo is the best I've heard under $3,000.Pure,clean signal, My B&W CDM 1SE's spring to life, great clarity and soundstage. AC-3/DTS can't be beat.No bells and whistles with this Amp, just great music, you must listen to one to understand. Cyberteria.com still sells them for $1800.00, Check UBID, I got mine for under $900, a steal. Top quality product!!!.

Related Equipment (home theater)
Nak 1a1z
Sony 7700 dvd
B&W CDM Fronts,center and rear
Transparent Musiclink interconnect and speaker cable throughout