Latest High End XiangSheng 728A Vacuum 12AT7 12AU7 Tube Pre-Amplifier Stereo HiFi Preamp Audio Processor

Features:

Wonderful stereo Pre-Amplifier, built with the best parts

The pre-amplifier improved based on famous Wada Shigeho's Style Electric circuit,

which was Introduced by Wada Shigeho in the early 1960s and gave an excellent performance.Regarding the Wada Shigeho's Style Electric circuit,It not only still keep the good features of Marantz7,meanwhile have superrior features in Dynamic,High / Low Frequency Response, Resolution and Signal to Noise Ratio as compared to Marantz7.But apart from above features, it's also not inferior to Marantz7 in Sound stage and airy feeling.

Adopt 4pcs NOS paper in oil capacitors and German WIMA coupling 

capacitors,make the sound warm and delicate.


Specifications

• Brand: XiangSheng

• Model: 728A

• Input Power: AC100V-AC240V, 60Hz / 50Hz

• Output Tube: 12AT7/ECC81 × 2, 12AU7/ECC82 × 2, 

• Rectifier tube:6Z4 × 2

• Input Sensitivity: 400mV

• Input impedance: 100K

• Output Impedance: 600 ohm

• Signal / Noise Ratio: 90dB

• Frequency Response: 10Hz - 30KHz

• Humidity: 35% -80%

• TMD: less than 0.01%

• Input Jack: 4 groups

• Output Jack: 2 groups

• Net Weight: 8 kg

• Size: 430mm(W) × 290mm(D) x 80mm(H) 

Packing List:

• One Xiangsheng 728A tube preamp pre-amplifier(power cord not included).