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Pioneer SPEC-3 + SPEC-4 (Pre Amp and Power Amp)

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Pioneer SPEC-3 + SPEC-4 (Pre Amp and Power Amp) Empty Pioneer SPEC-3 + SPEC-4 (Pre Amp and Power Amp)

Post by esteboune Thu Mar 04, 2021 9:04 am

Pioneer C-73 (SPEC-3 Japan version)

Specifications

Frequency response: 10Hz to 100kHz
Total harmonic distortion: 0.01%
Input sensitivity: 2.5mV (MM), 150mV (line)
Signal to noise ratio: 80dB (MM), 100dB (line)
Dimensions: 480 x 142 x 390mm
Weight: 7.7kg
Year: 1978


Pioneer M-75 (SPEC-4 Japan Version)

Description

The Spec-4 employs DC construction which excludes capacitors from the NFB circuits and uses a dual transistor differential amplifier with a current mirror circuit in the 1st stage.
This provides a stable operation and also high gain over a wide frequency range.
The pre-driver stage is a class A circuit with a regulated current circuit for the load.
This makes for high gain amplification with superior linearity.
Furthermore, there is an overdrive limiter and power limiter circuit which is designed to protect the power transistors and make for added reliability.

Specifications

Power output: 150 watts per channel into 8Ω (stereo)
Frequency response: 5Hz to 100kHz
Total harmonic distortion: 0.01%
Damping factor: 100
Input sensitivity: 1V
Signal to noise ratio: 115dB
Speaker load impedance: 4Ω to 16Ω
Semiconductors: 2 x IC, 61 x transistors, 62 x diodes
Dimensions: 480 x 187 x 445mm
Weight: 24.5kg


Pioneer SPEC-3 + SPEC-4 (Pre Amp and Power Amp) IMG-6501

Pioneer SPEC-3 + SPEC-4 (Pre Amp and Power Amp) IMG-6502

Pioneer SPEC-3 + SPEC-4 (Pre Amp and Power Amp) IMG-6503

Pioneer SPEC-3 + SPEC-4 (Pre Amp and Power Amp) IMG-6507

Great condition, recently maintained.

Produce a fantastic sound.

COD KLCC
Price:RM6.3K
contact: Paul o!2 6o9 98!2

esteboune
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Club Member

Number of posts : 27
Age : 38
Location : KUALA LUMPUR
Registration date : 2011-04-11

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Pioneer SPEC-3 + SPEC-4 (Pre Amp and Power Amp) Empty Re: Pioneer SPEC-3 + SPEC-4 (Pre Amp and Power Amp)

Post by esteboune Sun Mar 14, 2021 10:52 am

Still available!

esteboune
Club Member
Club Member

Number of posts : 27
Age : 38
Location : KUALA LUMPUR
Registration date : 2011-04-11

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