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Old 06-08-2019, 04:21 AM
jororupp jororupp is online now
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Default 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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Old 06-08-2019, 09:53 AM
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Yup, I just found out myself a few days ago.
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Old 06-09-2019, 11:07 AM
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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)
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Last edited by jdandy; 06-09-2019 at 11:09 AM.
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Old 06-09-2019, 11:30 AM
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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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Old 06-12-2019, 10:54 AM
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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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Old 06-12-2019, 12:51 PM
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Quote:
Originally Posted by grey17 View Post
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.
I think the Accuphase is no different than Luxman in that the published A class specs are misleading since they do have tons of overhead reserve and it indeed goes from class A to A/B until it clips or goes into thermal shut down. The Luxman for example is rated at 30w/60w true Class A into 8/4 but in reality puts out 140w into 4 ohms.
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