Bang & Olufsen Beocord 2400
Bang & Olufsen
Denmark
Tape Deck Details
Number of Motors
3
Number of Heads
3
Head Configuration
Stereo
Wow & Flutter
0.07%
Signal-to-Noise [dB]
60
Dimensions [mm]
450 × 225 × 358
Weight [kg]
16.5
Year built
1969–1973
Head Composition
Permalloy
Equalization
NAB
Frequency Response
30–18 kHz.
Speed
1⅞, 3¾, 7½
Max Reel [inch]
7
Tracks
1/4 Rec/PB
Price
Additional Information
The Bang & Olufsen Beocord 2400 is a 1969–1973 flagship stereo reel-to-reel tape recorder, an amplified evolution of the Beocord 1800/1600 family with dual speaker outputs and professional features in Jacob Jensen's iconic teak/rosewood slim cabinet.
Transport and Format
Tracks: 4-track/2-channel stereo (Type 4134) or 2-track (Type 4129); quarter-inch tape, no auto-reverse.
Heads: 3 or 4 permalloy heads (separate record, playback, erase) for full monitoring; half-track playback of quarter-track tapes.
Motors: 3-motor design (hysteresis synchronous capstan + dual reel motors).
Speeds: 1⅞, 3¾, 7½ ips (4.75/9.5/19 cm/s); DIN 45513/NAB 1965 EQ.
Reels: Up to 7-inch (18 cm); rewind ~170 sec for 1800 ft; photoelectric end-stop.
Performance Specs
Frequency response (±2 dB):
7½ ips: 30–18 kHz.
3¾ ips: 30–13 kHz.
1⅞ ips: 40–6 kHz.Wow/flutter: <0.07% RMS (7½ ips), <0.11% (3¾ ips), <0.18% (1⅞ ips).
S/N ratio: >60 dB (half-track), >57 dB (quarter-track, DIN 45405); crosstalk >60 dB mono/>55 dB stereo; erasure >70 dB; THD <3%; bias/erase 100 kHz.
Electronics and I/O
Amplifier: 2×10W RMS (4 Ω speakers, pairs I/II); usable independently of transport.
Inputs: Mic (35 µV/50–200 Ω balanced), radio low (2.5 mV/47 kΩ), radio high (50 mV/100 kΩ), phono low (1 mV/47 kΩ), phono high (35 mV/10 MΩ), line (250 mV/47 kΩ).
Outputs: Radio (1.25 V/7.5 kΩ), line (1.25 V/25 kΩ), headphones (0.8–1.8 V/100 Ω adjustable).
Features: Sound-on-sound, synchro-playback, echo, input mixing, twin faders, dual VU meters.
Physical Details
Dimensions: 450 × 225 × 358 mm (17.7 × 8.9 × 14.1 in).
Weight: 16.5 kg; power 15–125 W AC (110–240 V, 50/60 Hz).
Audiophile Context
B&O's most feature-complete consumer open-reel combines pro-grade transport stability, versatile mixing/editing, and hi-fi amplification for standalone or system use; excels at 7½ ips with low-noise tapes, though single-capstan limits extreme wow/flutter vs. later pro decks—prime restoration candidate for Danish wood hi-fi collectors.