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Can an audiophile find joy in an under $100 amplifier?


The Dayton Audio DTA-120 Parts Express


The separate power supply box is about the same size as the amp, so it's a good deal larger than your typical wall wart.

I used my old PSB Alpha B speakers and Oppo BDP 105 Blu-ray player for most of my listening tests. Nothing about the DTA-120's sound made me feel like I was listening to an entry-level amp. It was reasonably powerful, imaging was spacious, the sound was neither bright nor dull. I played a bunch of tunes and was perfectly happy with the sound. I also watched a few movies, and even without the aid of a subwoofer the little Alpha Bs provided satisfying, though not room-shaking, bass.

I plugged in my Audio Technica ATH M50 headphones and liked what I heard. The DTA-120 summoned up a lot of detail from the M50s and bass definition was well ahead of what I get from these 'phones plugged into my iPod Classic or Mac Mini computer.

The DTA-120's rear panel Parts Express

I compared the DTA-120 with the $25 Lepai LP2020A+ amp, and they sounded very different. The LP202A+ is mellower and more laid back; the DTA-120 is clearer, more open sounding. The LP2020+ is rated at just 20 watts per channel, so the DTA-120's dynamic oomph was well ahead of the LP2020A+'s, and treble "air" and detail were lacking compared with the DTA-120. Still, for the money the LP2020A+ is pretty spectacular, especially if you don't play tunes all that loud. The LP202A+ sounds sweet and rich at moderate volume levels.

The DTA-120 would also be a fine match with a set of desktop speakers, ones that don't have built-in power amps, like the Audioengine P4.

Parts Express sells the DTS-120 for just a hair under $100.