Balanced A3

Balanced A3 Full Balanced Tube Line Preamplifier

The BALANCED A3 is Audio Experience level 3 full balanced line preamp with Remote Control . it use new design Class A, + wave auto-balance circuitry offers wonderfully realistic, dynamic, open-sounding music that will please the ears and stir the soul of even the most discerning listener. The gain stage of the main circuit is a fully balanced design, each channel using Three E88CC/6922 vacuum tube to form zero negative feedback (0 NFB). The A3 line stage employs specialized tubes to project a clean, fresh soundstage while effectively preventing RF and vibration interference. The low impedance output stage is defining yet truthful to each note.

The Balanced A3’s application of a highly efficient solid-state regulator in the HVB+ power supply produces a sonic quality that is completely stable, lively, and rhythmically true to its source. At the heart is an extremely quiet power supply comprised of a fast, large current, R-core transformer. The shortest possible cable connections inside are the signature of the Mr. Chui ’s master craftsmanship.

The Balanced A3 replace the old model Balanced A2, Balanced A2 plus , Balanced A2 SE, Balanced A2 gold and Symphonies Plus-DX .

Features

Full Balanced Design ( New design )
Three E88C/6922 tubes for each channel
AudioCap Theta output caps
Remote Control with input select , volume control , mute
All input and output both with XLR and RCA
(4) stanard inputs , (2) sets of main outputs and (1) Record out.
(1) Processor input with Home Theater Bypass loop (HT/BP)

AudioCap Theta output caps

Frequency Response at 2V output.

Review by HiFi review #401

Specifications

Controls : L Gain , R Gain , Main Volume , Input Selector , Power On/Of

Remote Control : input select , volume control , mute

Output : Two Main with XLR / RCA , One Record with XLR / RCA ,

Input : L1 , L2 , L3 , L4 with XLR / RCA , Processor with XLR / RCA ( HT/BP )

Output Impedance : 500 ohms Balanced , 250 ohm SE Main.
Recommended load: 10K ohm or greater ( Balanced ) , 5K ohm or greater ( SE ).

Frequency Response: 10Hz ~ 200KHz ( 10Hz -0.2dB, 200KHz - 1.5dB)

T.H.D : <0.1% (20Hz ~ 20KHz /2V)

Input Impedance: 50K ohm XLR

Gain (Gain and Volume controls at MAX) :
20dB at XLR input to XLR output. 20dB at RCA input to XLR output.
15.5dB at XLR input to RCA output. 14.5dB at RCA input to RCA output.

S/N: >100dB

Channel Balance: <0.2dB(20Hz ~ 20KHz /max output)

Channel Separation: >92dB(2Hz ~ 20KHz)

Phase Mode : Normal

Max Output : 28V

Line-Stage Tubes : 6pcs E88CC/6922

Dimension: 455mm x 350mm x 120mm (W x D x H)

Weight: 7kg

Power Source: 110-127/220-240V,50/60Hz

Actual price : HK$9680.

Hong Kong buyer use following Button
(HK$9680 and free shipping )

USD$1300
The shipping by Air post to USA and Europe is US$120
USA and Europe buyer use following Button 　

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