YAQIN B-2T Preamp
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Item#: B-2T
$599 (unit price)
Quantity:
$599 (unit price)
Quantity:
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Features and Specifications
Electric Performance Index
Gain：14.5dB
Frequency Response：10Hz-90KHz（-2dB）
Distortion：≤0.03%
SNR：≥93dB（A）
Channel separation：63dB（1kHz）
Input impedance：47kΩ
Output impedance：230Ω
Maximum Output level：18V（when THD is 0.5）
Maximum Power Consumption：42W
Tube：12AX7 /ECC83x 2 12AU7 /ECC82x 2
EL84 x 1 5AR4 x 1
Gross Weight：about 11 kg
Net Weight：about 9 kg
Size：（W）320 mm（D）295 mm（H）195mm
Size：（W）320 mm（D）295 mm（H）195mm
Size：（W）420 mm（D）390 mm（H）285 mm
Preamplifier circuit characteristics
* The 12AX7 tube is used for common cathode amplification direct coupling to the 12AU7 tube for parallel control push-pull output, so that this machine is implemented
It has strong current drive and low impedance transmission ability.
* The power supply part adopts dual transformers high and low voltage independent power supply, 5AR4 tube rectification, "LC" π type filtering, 6P14 and
The screen is composed of a 12AX7 tube with a high-voltage regulated power supply and DC regulated filament power supply, which minimizes the noise of the machine.
* Specially equipped with microcomputer MCU control switch on and off mute and signal output port power on and off circuit and tube high voltage delay start power
It can effectively prevent the impact of surge voltage on equipment and speakers when switching on and off, and improve the service life of the tube.
* Use ALPS motor potentiometer imported from Japan to make the music background quiet and excellent typesetting and wiring, and connect it strictly
Ground, so that the signal is less polluted.
* The reasonable gain distribution design allows this machine to adapt to most sound sources and pure post-amp equipment, making this machine a universal front
stage amplifier.
* This machine is manufactured using imported audio special Sulun MKP cross-linking capacitors and imported famous audio special filter electrolysis and high-quality high-precision resistors.
Preamplifier circuit characteristics
* The 12AX7 tube is used for common cathode amplification direct coupling to the 12AU7 tube for parallel control push-pull output, so that this machine is implemented
It has strong current drive and low impedance transmission ability.
* The power supply part adopts dual transformers high and low voltage independent power supply, 5AR4 tube rectification, "LC" π type filtering, 6P14 and
The screen is composed of a 12AX7 tube with a high-voltage regulated power supply and DC regulated filament power supply, which minimizes the noise of the machine.
* Specially equipped with microcomputer MCU control switch on and off mute and signal output port power on and off circuit and tube high voltage delay start power
It can effectively prevent the impact of surge voltage on equipment and speakers when switching on and off, and improve the service life of the tube.
* Use ALPS motor potentiometer imported from Japan to make the music background quiet and excellent typesetting and wiring, and connect it strictly
Ground, so that the signal is less polluted.
* The reasonable gain distribution design allows this machine to adapt to most sound sources and pure post-amp equipment, making this machine a universal front
stage amplifier.
* This machine is manufactured using imported audio special Sulun MKP cross-linking capacitors and imported famous audio special filter electrolysis and high-quality high-precision resistors.
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