Studer A807

The Studer A807 is a professional analog reel-to-reel tape deck produced from the mid-1980s into the early 2000s, known as one of the final high-end analog machines from Studer. It is highly regarded for its quality, reliability, and versatility, used extensively in broadcast and studio applications.

Technical Overview:

Tape Transport & Mechanical Features:

• Tape Speeds: 3.75, 7.5, 15, and 30 inches per second (ips) selectable, depending on configuration.

• Tape Width: Supports 1/4 inch or 1/2 inch tape; 4-track operation available on half-inch tape.

• Reel Size: Maximum reel diameter of 10.5 inches.

• Motors: Three motors—capstan motor is a Hall-commutated brushless DC motor with capacitive tachometer for precise speed control; two AC motors handle tape spooling.

• Tape Handling: Electronically controlled tape tension for gentle tape processing and reliable tape handling at all speeds.

• Transport Position: Can be operated horizontally, vertically, or inclined.

Audio Electronics:

• Head Composition: Permalloy heads in stacked/inline configuration.

• Equalization: Switchable NAB and IEC (CCIR) standards.

• Signal-to-Noise Ratio: Ranges from approximately 63 dB (7.5 ips) up to 67 dB (30 ips) with 1/2" tape.

• Frequency Response: 30 Hz to 16 kHz at 7.5 ips; 30 Hz to 20 kHz at 15 ips; extends to 40 Hz to 22 kHz at 30 ips (±3 dB).

• Wow and Flutter: Exceptionally low—0.07% (7.5 ips), 0.05% (15 and 30 ips).

Control & Usability:

• Highly stable die-cast aluminum chassis.

• Microprocessor-controlled tape transport and audio electronics with phase compensation, eliminating the need for analog adjustments.

• Features include motor-assisted variable-speed spooling (shuttle mode), soft jumpers for programming, real-time tape counter, and multiple memory functions.

• Remote control capable interfaces including RS232 serial connection.

• Drop-in recording and drop-out by toggling controls during tape operation.

• Optional extensions for timecode applications and external instrument panels.

• Available with various meter options including VU meters integrated or in bridge.

Physical and Power:

• Dimensions: Approximately 500 mm wide × 483 mm high × 245 mm deep.

• Weight: Approximately 30–33 kg (depending on configuration).

• Power Consumption: About 80 W in stop, 150 W during play/record, and 190 W during fast forward/rewind.

• Voltage: Universal with selection from 100 V to 240 V AC, 50–60 Hz.

Special Features:

• Varispeed control at 38 cm/s with ±7 semitones adjustment.

• Fast start time (approx. 0.8 seconds at 38 cm/s).

• Supports library wind mode with reduced tape spooling speed.

• Can be used as a 2-channel stereo or mono machine, with version options for playback-only or record/playback.

• Known for long-term reliability and sound quality rated highly by experts.

The A807 combines highly accurate tape transport, stable digital-controlled electronics, and versatile operation making it ideal for broadcast, archival work, and professional mastering environments. It carries the lineage and technology of the beloved A810 series with some enhancements and a more compact footprint for studio flexibility.

This tape machine was considered the final analog tape deck from Studer, blending Swiss mechanical precision with state-of-the-art electronics of the era, widely regarded as one of the best analog reel-to-reel machines ever built