Hefei XiangSheng Electronic Co.,Ltd - Products - Pre-Amplifier - Improved 728A Vacuum Tube Pre-Amplifier

Pre-Amplifier

Contact info

ADD: 10F,A1 Building, Huayi Science Park, No.71 TianDa Road ,GaoXin District, Hefei,China

TEL: 0086-0551-5316108

FAX: 0086-0551-5317108

P.C.: 230088

URL:http://www.xshn.com

E-mail:xshn@xshn.com

xsdzyjs@yeah.net

Improved 728A Vacuum Tube Pre-Amplifier

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Product characteristics:

The 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.

The 728A pre-amplifier have Bass and Treble Controls and Volume, Balance adjustment on it .

Parameter:

◆ Size:430×80×290mm

◆ Input impedance:100K

◆ Output Impedance:50K

◆ SNR:90dB

◆ Frequency Response:10Hz--30KHz

◆ Distortion: less than 1%

◆ tube used :6N3×2,6N11×2,6Z4×2

◆ Weight: 8.5KG