New Accuphase A-48 class A amp
The new A-48 is announced for mid of July 2019 http://www.audiounion.jp/ct/news/article/1000007406/
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Yup, I just found out myself a few days ago.
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http://www.audiounion.jp/images/a-48_front600.jpg
Rated output: 90W / ch (4Ω load) / 45W / ch (8Ω load) Total harmonic distortion rate: 0.05% 2 Ω load, 0.03% 4 to 16 Ω load IM strain rate: 0.01% Frequency characteristic: 20 to 20 kHz + 0-0.2 dB (at rated continuous average output) Gain (gain): 28.0 dB Load impedance: 2 to 16 Ω at the time of stereo specification Dumping factor 800 S / N ratio: 117 dB (GAIN switch MAX) 122 dB (GAIN switch-12 dB) |
Accuphase is very conservative when it comes to published specs. I would expect the output to be well above the 45W @ 8ohm rating. This amp is gorgeous too.
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What happens when an Accuphase class A amp (or any class A amp) exceeds it's conservative rating? I assume it doesn't drop in A/B mode.
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major improvement?
It seems that the A-60 and A-65 were very close, but that the A-70 was a major improvement, and that the A-75 is very similar and not fundamentally different.
For the series A-45, A-46 and A-47 somebody told me that they are very similar, but that the new A-48 is a different machine, with a major improvement (with elements deriving from the A-200 and A-75). Can anybody confirm this? Is the A-48 a major improvement? (I am wondering about buying a second hand unit, or taking a good deal on the A-47 series that is running out, or waiting for the new A-48). Thanks for your comments. |
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Class A: 45W @8Ω , 90W @4Ω, 180W @2Ω, 360W @1Ω max. power before clipping (Class A/B): 102W @8Ω, 194W @4Ω, 281W @2Ω, 438W @1Ω Luxman only publishes the rated Class A power @8Ω and @4Ω. Martin |
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However, Accuphase never ever brought a new model on the market without also a clearly audible sonic improvement. In reality the different models may not have been as very close as you think. Whether you can (fully) hear the sonic improvement, entirely depends on the other components in your system. Example: my B&W 800 D3 was fairly well matching with the A-200 but the A-250 was a significant improvement capable of remarkably better showing off the speakers potential. I'd highly recommend to either compare the two models (A-47 and A-48) within your own system, or on a similar system to yours at a dealer. And also please keep in mind, that you might update other components of your system in the future, that may lead to the power amp becoming the limiting factor. Personally, I'd clearly go for the new A-48. Martin |
Thanks Martin
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