XiangSheng Improved 728A Tube Audio Pre-amplifier
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This nice728A pre-amplifier refer to famous Japan Wada Shigeho's Style improved Electric circuit , and adjust the External component parameters according to different bile ducts so that give full play to the advantage of bile duct, cause the machine perform well . The Electric circuit was introduced by professor Shigeho Wada () in the early 1960s, having excellent performance. It's sufficient to keep pace with Marantz7.
You don't see too many of these listed anywhere either and this is because it is cherished very much in the audiophile world. It is a highly recommended and desirable tube amplifier with the reputation of sounding.
The 728A pre-amplifier have Bass and Treble Controls and Volume, Balance adjustment on it.
Power supply:AC 100V-240V AVAILABLE(50Hz -60Hz)
Size:430mm(Width) W80mm(Height) W290mm(depth)
Signal to Noise Ratio:90dB
Distortion:less than 1%