I'm impressed with my Audio Alchemy DPA1 Stereo amp, A/D. It's very musical, it has great presence, palpability, heft and body. I've owned McIntosh, Rotel, NAD, Hegel and my other amp is an ARC tube amp. I would say the Audio Alchemy beats the Hegel H360 I owned, so it really is very good. The entire frequency range is fully present, no complaints.
Class D = Trash?
So, I'm on my second class D amp. The first one, a Teac AI-301DA which claimed to use an ICE module, was unlistenable trash. I burned it in for a few weeks, it just couldn't perform, so I sent it back. Following that, I tried the new Emotiva A-300 (class A/B). It was significantly better, but lacking in too many ways for my tastes. So I changed gears, got an 845 SET from China -- and it was an immediate and massive improvement.
So, before I went further down the SET road, I wanted to try a better class D product using a modern class D module. I settled on the D-Sonic M3-800S with the Pascal module and custom input stage. I read from reviews that these things like to have big cables, so I picked up an eBay 8 gauge power cable (Maze Audio, el-cheapo Oyaide copy plugs, braided 4-wire cable) to go along with it.
Mid-range GONE.
Soundstage depth CRUSHED.
Euphonics DISAPPEARED.
Yes, resolution went up. Driver control went up, allowing me to play compressed rock/pop and orchestra with the speakers being able to render it all. But enjoyment in the sound is basically gone. Using my best power cable (LessLoss Original) improved performance, but didn't fundamentally change the amp's nature. I ran back to my headphones (Focal Utopias) to detox my ear canals.
So, how long does a class D need to burn-in? I want to give it a fair shake before writing the technology off forever.
So, before I went further down the SET road, I wanted to try a better class D product using a modern class D module. I settled on the D-Sonic M3-800S with the Pascal module and custom input stage. I read from reviews that these things like to have big cables, so I picked up an eBay 8 gauge power cable (Maze Audio, el-cheapo Oyaide copy plugs, braided 4-wire cable) to go along with it.
Mid-range GONE.
Soundstage depth CRUSHED.
Euphonics DISAPPEARED.
Yes, resolution went up. Driver control went up, allowing me to play compressed rock/pop and orchestra with the speakers being able to render it all. But enjoyment in the sound is basically gone. Using my best power cable (LessLoss Original) improved performance, but didn't fundamentally change the amp's nature. I ran back to my headphones (Focal Utopias) to detox my ear canals.
So, how long does a class D need to burn-in? I want to give it a fair shake before writing the technology off forever.
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- 236 posts total
I just recently tried out, and returned an NAD M22 amp. My 20 yr old Bryston 4B-ST was misbehaving, so i sent it to them for their restoration service (replacing ALL the electrolytics!). I thought it was maybe time to update to a new amp, and I've always loved NAD gear. Well I thought the M22 was dismal..... simply unlistenable to me. Now, I own (5) class A/B amplifiers that range from $800-5000, and all 120 to 300 w/ch.... And i can tell each one of them apart. They all perform well, and have their own personality. So don't tell me i don't know what amplifiers sound like. The M22 was truly unlistenable to me. I'll admit that woofer control, and dynamic power was truly amazing, but the sound was so harsh and congested, and lacked any depth. The imaging was very weird too..... like the center was sucked out in the mid frequencies. There was no solid center image. I'd never heard an amp like it. |
Interesting read this thread has been! Just thinking out-loud.... I bought my Marantz PM-11s3 a year ago and listened to many class D amps including NAD, Devialet and others in its price range and to me there was no comparison! The PM-11s3 was a much better listen in every way. Now what scares me is that the new Marantz PM-10 is Class D. And it's priced at $9000, a full $4000 more than the PM-11s3!!! I really hope they got it right and it’s a major jump forward for the Class D technology without these long break-ins and loss of performance or they are headed for a major black eye! That would be a terrible let down considering how good their Reference Series has been... |
NuPrime changes everything.... Amps = NuPrime ST-10 NuPrime STA-9... NuPrime STA 6. They have also a great line of integrated amps. These have a sweetness to them that most other class D’s can not touch. http://www.nuprimeaudio.com/index.php/products/amplifiers-and-preamps/integrated-amps.html http://www.nuprimeaudio.com/index.php/products/amplifiers-and-preamps.html |
- 236 posts total