Technics SL-Q3 (1979–1980)

A fully automatic, quartz-locked direct drive turntable built for precision and ease of use.

Overview

The Technics SL-Q3 is a direct drive full-automatic player system introduced in 1979. It was designed for audiophile listening, with high rotational accuracy and low wow and flutter. It has a quartz phase locked control system and a brushless DC motor, and it plays at 33 1/3 and 45 rpm. The tonearm is a universal S-shaped static balance gimbal suspension type. It works with MM type stereo cartridges within a specific weight range.

Specifications

Drive system	Direct drive
Drive motor	Brushless DC motor
Control system	Quartz phase locked control
Turntable	31.2 cm Aluminum Die-cast
Number of revolutions	33 1/3, 45 rpm
Starting torque	1.0 kg / cm
Start-up characteristic	Constant speed at 0.9 seconds (33 1/3rpm)
Load variation	0.7 kg / cm or Less, 0%
Rotational speed deviation	Within ± 0.002%
Wow and flutter	0.025%W.R.M.S(JIS C5521) 0.012% W. R. M. S (Rotating Part Only)
Signal-to-noise ratio	78dB(IEC98A weighted)
Tone Arm Format	Universal S-shaped Static balance Gimbal suspension system
Rotational axis sensitivity	7 mg (horizontal and vertical initial motion sensitivity)
Needle pressure adjustment range	0 ~ 2.5g
Shell Weight	7.5g
Applicable Cartridge Weight	6g ~ 9.5g 3g ~ 6.5g (When Using Shell Weight)
Cartridge Type	MM Type Stereo Cartridge
Cartridge Dead weight	5.6g
Exchange needle	EPS-207ED (Elliptical Needle, ¥ 6,000)
Power	100 VAC, 50Hz/60Hz
Power consumption	6W
External dimensions	Width 430x Height 130x Depth 375 mm
Weight	7.2kg

Design

The cabinet is precision aluminum die-cast. Both the bottom base and the upper part use a two-layer structure with TNRC, an acoustic material with high anti-vibration properties. A large insulator made of spring and viscoelastic material connects directly to the cabinet to prevent howling. All controls are on the front, so you can use them with the dust cover closed. Speed is detected by a unique all-around detection F/G system for higher accuracy. The queuing mechanism is an oil dump type. An LED strobe illuminator synchronized with a crystal oscillator lets you adjust speed precisely. The motor is an integrated direct drive motor unique to Technics.

Market

The Technics SL-Q3 originally sold for ¥49,800 around 1979. It currently has a market value between $300 and $500.

Market Value

┌──────────────────────────────────────────────────────────────────────────┐
│ TECHNICS SL-Q3                                                  Nov 2026 │
├──────────────────────────────────────────────────────────────────────────┤
│ High      $837                                    Latest            $243 │
│ Median    $325                                    Trend                — │
│ Low       $38                                     Volume           ~6/mo │
├──────────────────────────────────────────────────────────────────────────┤
│   $900 ┤                                                                 │
│        │.                                                                │
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│   $514 ┤                    .                   .        .        .      │
│        │                      .                     .. .             ..  │
│        │                                 .  .    .                 . . ..│
│        │                      ..      .      .  .       .  ..      .  ...│
│     $0 ┤            .                   .                    .           │
│        ├─────────────────────────────────────────────────────────────────│
│    vol │▅  ▂        ▂       ▂ ▅▂      ▂ ▂▂  ▂▂  ▅▂  ▂▂ ▂▂▂ ▂▂▂    ▂▅ ▅█▅▅│
│        └─────────────────────────────────────────────────────────────────│
│         2026-02                      2026-05                      2026-08│
└──────────────────────────────────────────────────────────────────────────┘