Soundcraftsmen RA7503 Amplifier: Vintage Audio Review Episode
Автор: Vintage Audio Review
Загружено: 2025-08-03
Просмотров: 802
In this episode I look at the performance and features of a refurbished Soundcraftsmen RA7503 Amplifier and compare it to an original RA7501 Amplifier.
The link to the website I mentioned: https://www.stereo-phoenix.com/
You may contact me @ [email protected]
00:00 Introduction
04:31 Tour of the Front & Back of the RA7503
07:39 Inside the RA7503
08:12 The displays of the RA7503 in action
08:35 5w 8ohms THD comparison between balanced & unbalanced inputs
09:08 5w 8ohms THD comparison between RA7503/RA7501(balanced inputs)
10:15 5w 8ohms Frequency response balanced & unbalanced inputs
10:38 5w 8ohms Frequency response comparison RA7503/RA7501 (balanced inputs)
11:11 250w 8ohms THD comparison between RA7503/RA7501 (balanced inputs)
12:45 Dynamic Headroom (RA7503)
13:36 5w 8ohms THD comparison between “Monoblocks” RA7503/RA7501
15:27 Harmonic comparison between “Monoblocks” RA7503/RA7501
15:57 Max Power 8ohms comparison between “Monoblocks” RA7503/RA7501
17:09 Power meter LED accuracy (RA7503)
18:13 “Spur Problem” and solution
21:57 Listening/ Final comments
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