Sony PS-Q7 (1982-1984)

Name: Sony ps-q7
Brand: Sony

Compact direct-drive turntable with built-in FM transmitter, headphone amplifier, and full auto operation, sold primarily in Japan.

Overview

The Sony PS-Q7 is a full automatic direct-drive turntable made from August 1982 to 1984. It was designed to match the FH-7 micro system, and it answers the compact turntable concept introduced by the Technics SL-10. Inside a chassis about two-thirds the size of an LP jacket, Sony fit a RIAA amplifier, an FM transmitter, and a headphone amplifier. It has automatic start and Oatley turn operation. A one-touch selector switches between 33 and 45 rpm and sets the tone arm lead-in position for 17 cm or 30 cm records. Japanese models were sold as the 'Heli Player' and have a working FM stereo transmitter. Export versions don't. The transmitter section on their PCB is unpopulated.

Specifications

Production Years	August 1982 to 1984
Drive Type	Direct-drive with Servo Lock
Operation	Automatic
Motor Type	BSL (Brushless and SlotLess) with 'Magnedisc' encoder
Wow and Flutter	0.08% WRMS
Signal-to-Noise Ratio	68dB (DIN-B)
Tone Arm Type	Dynamic balance type, L-shaped pivot at rear
Needle Pressure	2g Fixed
Cartridge	MM Type VL-43G (arm integrated)
Frequency Response (Cartridge)	10 Hz to 20 kHz
Output Voltage	3.5 mV (1 kHz, 5 cm/s, 45°)
Stylus	0.6 mil-round diamond (ND-143G replacement, ¥3,500)
Speeds	33 rpm, 45 rpm
Record Sizes	7 in, 12 in
Transmitter Frequency	77.3 MHz to 78.7 MHz
Transmitter Modulation	Lithium tantalate controlled oscillation system
Channel Separation (Transmitter)	25 dB
Outputs	3.5mm direct cartridge output, 3.5mm headphone jack with volume control
Dimensions	215 mm (W) × 60 mm (H) × 235 mm (D)
Weight	2.5 kg
Colors	Silver (common), brownish black, red (rare), blue (x-rare, Japan only), pearl white (rumored)
Accessories	45 rpm adapter, flock-covered cardboard shim disc, built-in center clamp on ball-race

Design

The PS-Q7 has a straight, dynamically balanced tone arm. The L-shaped pivot sits near the center at the rear of the deck to save space. The short arm section is pressure die-cast with an integral bearing housing, and the long section is square alloy tube. The direct-drive system uses a flat linear BSL motor that acts as the platter. There is minimal flywheel effect, so the control loop uses the mass of the record for stability. A dedicated motor moves the arm automatically, coordinated by digital electronics, not spindle gears. The headphone amplifier and RIAA equalizing circuitry are miniaturized and mounted under the arm rest. Japanese models have a rear FM antenna with a red LED that glows during transmission.

Context

The PS-Q7 was Sony's compact, integrated response to the Technics SL-10. It sold better than the PS-F9 Flamingo and became one of Sony's better-remembered turntable models. A simpler belt-drive version, the PS-Q3, was also offered, along with the PS-Q9, which added a Control S plug. All models in the Q-series came in brownish-black, but only the PS-Q7 was offered in rare colors like blue and red. It was also marketed with better packaging than its siblings.

Market Value

┌──────────────────────────────────────────────────────────────────────────┐
│ SONY PS-Q7                                                      Nov 2026 │
├──────────────────────────────────────────────────────────────────────────┤
│ High      $1,078                                  Latest          $1,078 │
│ Median    $567                                    Trend                — │
│ Low       $285                                    Volume           ~2/mo │
├──────────────────────────────────────────────────────────────────────────┤
│ $2,000 ┤                                                                 │
│        │                                                                 │
│        │                                                                 │
│ $1,229 ┤                                                                 │
│        │                                                                .│
│        │                                                                 │
│        │.                                                                │
│   $200 ┤                                  .                          .   │
│        ├─────────────────────────────────────────────────────────────────│
│    vol │█                                 █                          █  █│
│        └─────────────────────────────────────────────────────────────────│
│         2026-04                      2026-05                      2026-06│
└──────────────────────────────────────────────────────────────────────────┘

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