This product refers to the circuit design of a foreign famous machine (PASS). This is a single-ended Class A power amplifier circuit. It uses a high-grade double-sided thick gold-plated PCB (substrate 2MM, copper foil thickness 75U, not comparable to 35U), and assembly of fever components (military industry) 718 factory resistance), ruby ​​fever electrolysis, non-inductive high-power resistance, etc.), the power amplifier tube adopts the US brand new IRFP240/250 field effect tube precision pairing. The voice is mellow and hard to hear.
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Note: Single-ended Class A fever is horrible! (The quiescent current per channel is 1.8A!) Please do not power on the test without installing a radiator or installing a small radiator! So as not to burn the tube! The recommended weight of the radiator is 5KG per channel. .
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Size: 136MM*78.6MM, plate thickness 2.0MM.
Voltage: DC+－35V
Power: 60W (8 ohms)
Differential input field tube IRF9610 matching accuracy 0.2%, midpoint output voltage (+-50MV) within
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About the pairing accuracy description: 0.2% accuracy means that the VGS voltage is accurate to 3 digits after the decimal point, and 0.3% is also, but the error is a little larger than 0.2%. 5% accuracy means that the VGS voltage is accurate to 2 digits after the decimal point.
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PASS A5 original factory specifications:
SPECIFICATIONS

Cain 20dB balanced, 20 or 26dB balanced

Freq Response -0.5dB at 2 Hz, -2 dB at 100KHz

Power Output 60 watts/ch 8 ohms

Maximum OUTput 30 volts,8 amps

Distortion(1KHz) 1% @ 60 watts,8 ohms

3% @ 90 watts,4 ohms

Input lmpedance 10 Kohm unbalanced
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25 Kohm balanced differential

Damping factor 50 nominal

Output Noise 600uV unweighted

DC offset <100 mv

Power Consumption 300 watts

Temperature 25 degrees C above ambient

Dimensions 12" W x 12"

Shipping Weight 60lb