All Vintage Stereo Amplifiers

hi-fi amplifier (1)

All vintage stereo amplifier, vintage hifi stereo system, tube amplifier stereo, studied on vintageshifi.com, with their instructions, service manual, and for the most part the list of transistors and their equivalents to carry out a careful restoration. Come explore these some 120 pages devoted to these bestsellers of the hifi and take the time to browse the site. When it comes to reproducing and amplifying sound, some of our older stereo amplifiers have nothing to envy today′s audiophile devices. Their only problems are the resistance over time of their most sensitive components. It is for this reason that it is better to buy restored devices, and it is even preferable to choose a device of a certain level of the range from one of the best reputable manufacturers specialized in high fidelity. The extent of our hearing field has not changed (20-20.000 Hz). You can buy a vintage amplifier, but some devices! Yesterday like today everything is not advisable.

Here are some devices hi-fi amplifier: Akai AM 2400, Marantz 1030, Marantz 1070, Marantz 1090, Marantz 4140, Marantz PM 400, Nad 3020E, Pioneer SA 506, Pioneer SA 508, Pioneer SA 9100, Rotel RA 611, Sansui A80, Sansui AU 505, Sansui AU 666, Sansui AU 999, Sansui AU 20000, Sansui AU 11000, Sanyo DCA 611, Sony TA 2650, Technics SU-7700, Scott 255S, Scott A426 and many other vintage hi-fi amplifier.

AKAI AM 2250 (1979)

AMPLIFIER, Power (RMS) 2X25 w.
Frequency response: 10Hz/40kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,2% 8 ohms,
Damping factor: 50.

Equivalent transistors and list
of available electrolytic capacitors
Service Manual, Owner's Manual available

AKAI AM 2350 (1979)

AMPLIFIER, Power (RMS) 2X35 w.
Frequency response: 10Hz/40kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,2% 8 ohms,
Damping factor: 30.

Equivalent transistors and list
of available electrolytic capacitors
Service Manual available

AKAI AM 2400 (1976)

AMPLIFIER, Power (RMS) 2X40 w.
Frequency response: 7Hz/40kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,15% 8 ohms,
Damping factor: 60.

Equivalent transistors available
Service Manual, Owner's Manual available

AKAI AM 2450 (1979)

AMPLIFIER, Power (RMS) 2X45 w.
Frequency response: 6Hz/60kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,1% 8 ohms,
Damping factor: 30.

Equivalent transistors available
Service Manual available

AKAI AM 2600 (1976)

AMPLIFIER, Power (RMS) 2X60 w.
Frequency response: 7Hz/40kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,1% 8 ohms,
Damping factor: 60.

Equivalent transistors available
Service Manual available

AKAI AM 2800 (1976)

AMPLIFIER, Power (RMS) 2X80 w.
Frequency response: 7Hz/40kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,08% 8 ohms,
Damping factor: 60.

Equivalent transistors available
Service Manual available

AKAI AM 2850 (1979)

AMPLIFIER, Power (RMS) 2X85 w.
Frequency response: 10Hz/40kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,08% 8 ohms,
Damping factor: 50.

Equivalent transistors available
Service Manual available

HARMAN KARDON PM 665 (1982)

AMPLIFIER, Power (RMS) 2X100 w.
Frequency response: 2Hz/150kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,08% 8 ohms,
Damping factor: 60.

Equivalent transistors available
Service Manual available

KENWOOD KA 405 (1979)

AMPLIFIER, Power (RMS) 2X55 w.
Frequency response: 20Hz/20kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,05% 8 ohms,
Damping factor: 45.

Equivalent transistors available
Service Manual available

LUXMAN L30 (1977)

AMPLIFIER, Power (RMS) 2X32 w.
Frequency response: 10Hz/50kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,05% 8 ohms,
Damping factor: 90.

Equivalent transistors available
Service Manual, Owner's Manual available

LUXMAN L31 (1977)

AMPLIFIER, Power (RMS) 2X38 w.
Frequency response: 15Hz/50kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,5% 8 ohms,
Damping factor: 90.

Equivalent transistors available
Service Manual available

LUXMAN L81 (1976)

AMPLIFIER, Power (RMS) 2X45 w.
Frequency response: 5Hz/50kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.1% 8 ohms,
Damping factor: 40.

Equivalent transistors available
Service Manual available

LUXMAN L100 (1976)

AMPLIFIER, Power (RMS) 2X110 w.
Frequency response: 5Hz/50kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,07% 8 ohms,
Damping factor: 50.

Equivalent transistors and list
of available electrolytic capacitors
Service Manual, Owner's Manual available

LUXMAN L550 (1982)

AMPLIFIER, Power (RMS) 2X50 w.
Frequency response: 10Hz/100kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,005% 8 ohms.

Equivalent transistors available
Service Manual, Owner's Manual available

MARANTZ 1030 (1973)

AMPLIFIER, Power (RMS) 2X15 w.
Frequency response: 20Hz/20kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,5% 8 ohms,
Damping factor: 45.

Equivalent transistors available
Service Manual available

MARANTZ 1040 (1974)

AMPLIFIER, Power (RMS) 2X20 w.
Frequency response: 20Hz/20kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,3% 8 ohms,
Damping factor: 20.

Equivalent transistors available
Service Manual available

MARANTZ 1060 (1971)

AMPLIFIER, Power (RMS) 2X30 w.
Frequency response: 20Hz/20kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,5% 8 ohms,
Damping factor: 45.

Equivalent transistors available
Service Manual available

MARANTZ 1070 (1974)

AMPLIFIER, Power (RMS) 2X35 w
Frequency response: 20Hz/20kHz,
Output Impedance:4,8 ohms
Total Harmonic output: 0,3% 8 ohms,
Damping factor: 20.

Equivalent transistors available
Service Manual available

MARANTZ 1072 (1978)

AMPLIFIER, Power (RMS) 2X36 w
Frequency response: 15Hz/60kHz,
Output Impedance:4,8 ohms
Total Harmonic output: 0,05% 8 ohms,
Damping factor: 45.

Equivalent transistors available
Service Manual available

MARANTZ 1090 (1977)

AMPLIFIER, Power (RMS) 2X50 w
Frequency response: 10Hz/70kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0,1% 8 ohms,
Damping factor: 35.

Equivalent transistors available
Service Manual available

MARANTZ 1122 DC (1978)

AMPLIFIER, Power (RMS) 2X61 w
Frequency response: 5Hz/60kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.03% 8 ohms,
Damping factor: 60.

Equivalent transistors available
Service Manual available

MARANTZ 1150 D (1976)

AMPLIFIER, Power (RMS) 2X75 w
Frequency response: 5Hz/50kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.1% 8 ohms.

Equivalent transistors available
Service Manual available

MARANTZ 1180 DC (1978)

AMPLIFIER, Power (RMS) 2X90 w
Frequency response: 5Hz/60kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.03% 8 ohms,
Damping factor: 60.

Equivalent transistors available
Service Manual available

MARANTZ 4140 (1973)

AMPLIFIER, Power (RMS) 2X70 w
Continuous Power (RMS) 25 watts x 4/8 ohms
Frequency response: 7Hz/70kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.3% 8 ohms,
Damping factor: 40.

Equivalent transistors available
Service Manual available

MARANTZ PM 400 (1980)

AMPLIFIER, Power (RMS) 2X36 w
Frequency response: 20Hz/50kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.05% 8 ohms,
Damping factor: 100.

Equivalent transistors available
Service Manual available

MARANTZ PM 500 (1980)

AMPLIFIER, Power (RMS) 2X50 w
Frequency response: 10Hz/60kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.03% 8 ohms,
Damping factor: 110.

Equivalent transistors available
Service Manual available

MCINTOSH MA 6900 (2000)

AMPLIFIER, Power (RMS) 2X200 w.
Frequency response: 20Hz/20kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.005% 8 ohms,
Damping factor: 40.

Owner's Manual available
Service Manual, brochure available

NAD 200 (1975)

AMPLIFIER, Power (RMS) 2X100 w
Frequency response: 20Hz/20kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.1% 8 ohms.

Equivalent transistors and schematic available

NAD 3020E (1980)

AMPLIFIER, Power (RMS) 2X25 w
Frequency response: 20Hz/20kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.05% 8 ohms.

Equivalent transistors and list
of available electrolytic capacitors
Service Manual available

NAD 3130 (1985)

AMPLIFIER, Power (RMS) 2X30 w
Frequency response: 20Hz/20kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.03% 8 ohms.

Equivalent transistors available
Service Manual, Owner's Manual available

NAD 3150 (1982)

AMPLIFIER, Power (RMS) 2X50 w
Frequency response: 20Hz/20kHz,
Output Impedance: 4/8 ohms
Total Harmonic output: 0.03% 8 ohms.

Equivalent transistors available
Service Manual, Owner's Manual available

NAD 3240-PE (1988)

AMPLIFIER, Power (RMS) 2X40 w
Frequency response: 20Hz/20kHz,
Output Impedance: 4/8 ohms
Total Harmonic output: 0.03% 8 ohms.

Equivalent transistors available
Service Manual, Owner's Manual available

NIKKO NA 550 (1978)

AMPLIFIER, Power (RMS) 2X50 w
Frequency response: 10Hz/50kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.08% 8 ohms,
Damping factor: 60.

Equivalent transistors available
Service Manual available

NIKKO NA 1090 (1980)

AMPLIFIER, Power (RMS) 2X63 w
Frequency response: 5Hz/45kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.02% 8 ohms,
Damping factor: 50.

Equivalent transistors available
Schematics available

NIKKO TRM 650 (1978)

AMPLIFIER, Power (RMS) 2X50 w
Frequency response: 20Hz/20kHz,
Output Impedance: 8 ohms
Total Harmonic output: 0.07% 8 ohms.

Equivalent transistors and list
of available electrolytic capacitors
Schematics available