Sound Luster D-2030A-6550B Class A vacuum tube parallel connection single-ended Integrated Amplifier
100% Brand New
Declaration
All items guaranteed 100% BRAND NEW in the original edition Box.
ONE-YEAR WARRANTY !!!
Parameter:
Input Impedance: 100KΩ
Output Impedance: 4Ω 8Ω
Input Sensitivity: 500--2000mV
Total Hamonic Distortion: ≤1%(1KHz)
Frequeney responses: 20Hz-30KHz±1dB
Maximum output: 35W×2(8Ω Standard) 25W×2(8Ω Triode)
Signal to Noise Ratio: 86dB
Input Jacks: 4
Output Jacks: 2
Pre-tube: 6J4P×2，6N8P×2
rectifier tubes: 5Z3P×2
power tubes: 6550B× 4
Power supply voltage: 110/230V 60Hz/50Hz
(100V, 110V, 120V, 230V, 240V version will take 3-14 work days to order),220V version is in stock
Size: 435mm(W)×180mm(H)×340mm(D)
Net weight: 22kg
Gross weight：24kg
Description:
◆ Chassis is made of stainless steel of 1.2mm in thickness with wire brushing.
◆ Big metal knob, comb-like feet for reducing shaking.
◆ High-grade RCA terminal with gold plating.
◆ 4Ω and 8Ω power output terminals with gold plating.
◆ Side panels made from cherry wood.
◆ Blue power indicator.
Introduction:
A amplifier operating point selection in a straight line segment of the characteristic curve, nonlinear distortion is relatively small, even-order harmonic content is high, very good sound effects, sound quality is beautiful moist, sweet and pleasant, quite "multi-harp" rhyme sense. But less efficient, higher output power is small, the speaker sensitivity.
In order to solve the problem of single-tube Class A output power with the amplifier power tubes in parallel output, reducing the output impedance, and enhance the driving force.
This machine adopts the old handmade scaffolding welding process.
For the first stage amplification with five very the tube 6J4P (or 6J8P) amplification, pentode tone sounds gorgeous, single-stage high gain, the machine this pipe into the transistor forms of amplification, further reducing distortion, making the sound more delicate.
The second level to promote the adoption of twin pairs three internal shunt tube 6N8P promote, the 6N8P maximum anode dissipation power up to 6W about parallel internal resistance of a lower driving force for better.
Rectifier high current rectifier 5Z3P × 2 secondary rectifier, making the supply of high-current amplification by the CPI (A) through better, more abundant.
product characteristics:
● 6J4P × the +6 N8P × 2 do zoom promote.
● have a transistor, the standard form of connection optional.
● high-gloss metal knob, blue power indicator light (warm-up delay for instructions).
● 1.2mm brushed stainless steel enclosure.
Wrinkle paint process cattle enclosures.
● Output cattle quality core layer and section wound supply cattle with the same core, high-purity oxygen-free copper wire production.
● The volume of Japan ALPS W.L potential.
● Weimar, Germany WIMA red MKP capacitor coupling.
● high-grade gold-plated RCA signal terminal, thick gold-plated 4Ω, 8Ω output terminal (now both replaced by oxidation of high-grade amber gold-plated binding posts).
● Teflon silver plated shielded signal lines.
● four imported large pond filter.
● three-plug power socket for easy replacement of fever power cord.
