AI-generated product photo — not official manufacturer imagery.
Estimated price (community-sourced)
Around — community and catalog average, updates slowly
The Nagra IV-S is a portable stereo 6.35-mm (¼ inch) analogue audio tape recorder introduced in the 1970s by Nagra Audio, designed for high-quality musical recording and professional film and television applications. It supports three tape speeds: 15, 7½, and 3¾ ips (38, 19, and 9.5 cm/s) with NAB, CCIR, and NAGRAMASTER equalization standards. The machine has two 2-mm audio tracks and a central track for pilot tone or time code, depending on the version (NQS-LSP non-pilot or NQS-TC time code). It features two microphone preamplifiers switchable between dynamic, T (+12V), or P (+48V) condenser with phase reversal, or two current line inputs. The recorder includes separate recording and playback heads for confidence playback, a built-in monitoring speaker switchable between source or tape, a reference generator, modulometer, alarm indicators for power supply and tape transport, and provisions for external noise reduction systems. It also incorporates a patented anti-distortion circuit, high-pass filters to reduce low-frequency resonance, and switchable automatic level control and limiter. Power can be supplied by internal batteries (12 D cells) or an external supply (ATN-4). The IV-S can accommodate tape reels up to 7 inches with optional expansions for 10-inch reels. It is known for its excellent microphone preamps, large dynamic range, and reliability. The IV-S was widely used in professional audio recording, including notable music albums and film soundtracks, and remains a reference for audio quality and durability despite being discontinued.
Input and output connections
Size, weight, and appearance
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions
The closest alternatives on specs, description and the systems they turn up in, with the specs they share set side by side.
The CR-7A's weight is 9 kg (20 lbs) against the IV-S's 6.4 kg (14 lbs), its height 135 mm against 195 mm, its width 435 mm against 320 mm, and its depth 306 mm against 120 mm.
The 700 MkII's weight is 12.5 kg (28 lbs) against the IV-S's 6.4 kg (14 lbs), its depth 130 mm against 120 mm, its height 267 mm against 195 mm, and its width 520 mm against 320 mm.
The Dragon's weight is 9.5 kg (21 lbs) against the IV-S's 6.4 kg (14 lbs), its height 135 mm against 195 mm, its width 450 mm against 320 mm, and its depth 300 mm against 120 mm.
The V-1RX's weight is 6 kg (13 lbs) against the IV-S's 6.4 kg (14 lbs), its height 112 mm against 195 mm, its width 436 mm against 320 mm, and its depth 261 mm against 120 mm.
Nakamichi ZX-7
Nakamichi 500 Dual Tracer
The specs and the pairings above are open to everyone. Sign up and you get the system builder, the assistant, a compatibility check against the gear you already own, and a watch on this product so a price or pairing change reaches you.
Sign up free