Marantz 1070 Vintage Integrated Amplifier – 35 WPC, Serviced

A slim mid-seventies Marantz integrated amplifier, through our Level 1 service, in very good condition, with a phono stage, a three-band tone section and a microphone input on the front panel.

What it is

The 1070 belongs to the slim-chassis family Marantz built in the mid-seventies alongside the 1060 amplifier and the 112 tuner, all sized to sit in the same wood case. It is rated at 35 watts per channel into 8 ohms across the full 20 Hz to 20 kHz band at 0.3% distortion, and it carries a proper MM phono stage for your turntable. Designed in the USA and built in Japan, 1975 to 1978.

The front panel gives you more control than most amplifiers of its size. The tone section has three sliders, bass, mid and treble, where most of its rivals stopped at two, so you can shape the vocal range without touching the bottom or top end. There are high and low filters for noisy records and rumble, a loudness switch, a balance slider, and a mode selector that runs left, right, stereo, reverse and mono. The input selector takes a microphone as well as phono, tuner, aux and two tape decks, with a front-panel mic jack beside the headphone socket.

Around the back, the preamplifier and power amplifier sections are linked by pre-out and main-in jacks, so they can be separated to add an equalizer or to use either half on its own. Both tape loops have RCA jacks and a DIN socket. There are terminals for a main and a remote or ambience pair of speakers, a chassis ground post, and two AC outlets, one switched and one unswitched, for a turntable or tuner.

It is shown bare, in its factory black metal case. If you would like it in wood, a walnut-grain cabinet sized for the 1070 is listed separately.

The service it has had

Level 1 service, carried out on our bench:

Condition

Very good, and free of significant marks. The brushed silver faceplate, the knobs and sliders, the panel legends and the black case all present well, as the photographs show.

A clean, fully serviced mid-seventies Marantz in the slim chassis, with the controls of a much bigger amplifier.

Available for pickup in Kanata, or shipped across Canada and internationally — we have sent equipment to fifteen countries in the past year, each piece packed in-house in 275 lb test double-wall boxes. Live shipping rates for your address are calculated at checkout. Backed by Radique Audio’s Bumper-to-Bumper Warranty and our Perpetual Trade-Back Program. Available for audition by appointment in Kanata.

Marantz 1070 Specifications

• Every input, output and control tested
• All pots and switches deep-cleaned and deoxidized
• Any blown indicator lamps replaced
• Power supply wiring checked and cleaned
• Burn-in and sign-off testing
• A second bench test by a different tech before listing
• Type: stereo integrated amplifier
• Service: Radique Level 1
• Power output: 35 watts per channel into 8 ohms, 20 Hz – 20 kHz, 0.3% THD
• Damping factor: 20
• Input sensitivity: 1.8 mV (MM phono), 180 mV (line)
• Tone controls: bass, mid and treble sliders, loudness
• Filters: high and low
• Inputs: phono (MM), tuner, aux, microphone, two tape loops with RCA and DIN sockets
• Outputs: main and remote or ambience speaker pairs, headphones, pre-out
• Pre-out and main-in: yes, the sections can be separated
• AC outlets: 1 switched, 1 unswitched
• Power: 120 V
• Designed in the USA, made in Japan, 1975–1978
• Dimensions: (Width x Height x Depth) 14.2 x 4.7 x 11 inches (360 x 120 x 280 mm)
• Weight: 18.5 lbs (8.4 kg)

⚠️ Important Information for International Buyers

This unit is configured for North American 110/120V power. Buyers outside North America will require a step-down transformer and appropriate plug adapter.

✅ Buy With Confidence — The Radique Promise

Backed by Radique Audio’s Bumper-to-Bumper Warranty and our Perpetual Trade-Back Program. When you’re ready to move on, we’ll take it back. That’s the Radique difference.

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