The Blonder-Tongue Audio Baton, introduced in 1959, was a groundbreaking tube equaliser that offered unprecedented control over audio response. This self-powered device featured nine individual controls, each dedicated to an octave band in the audio spectrum. Users could boost or attenuate frequencies by up to ±14 dB, allowing precise audio adjustments. Ingenious visual indicators provided real-time feedback on the degree of adjustment for each octave, displaying the resulting frequency response curve.
Designed for versatility, the Audio Baton could be easily integrated between the preamplifier and power amplifier stages of any hi-fi or audio system and was compatible with many preamp-amplifier combinations. It excelled in correcting deficiencies in speakers, enhancing or suppressing specific sounds, and shaping timbres for unique sonic characteristics. The device also allowed users to isolate individual instruments for detailed analysis. In stereo systems, two Blonder-Tongue Audio Batons could be employed for exceptional performance.
The Blonder-Tongue Audio Baton was equally effective in public address systems, improving speech clarity by targeting specific frequency bands and reducing noise. This ensured maximum intelligibility with minimal listening fatigue. Encased in a sleek, streamlined cabinet with an attractive front panel, it was priced at $119.95 in 1959, making it a valuable addition to any serious audiophile’s setup.
Widely regarded as an innovative tool in high-fidelity sound, the Blonder-Tongue Audio Baton remains a cherished piece of audio history, admired for its precision, functionality, and timeless design.
- Frequency bands: 9 one-octave bands centred at 40 Hz, 80 Hz, 160 Hz, 320 Hz, 640 Hz, 1280 Hz, 2560 Hz, 5120 Hz, and 10,240 Hz
- Control range: ±14 dB boost or cut per band
- Tubes:
- 4 x 12AX7 (or equivalent)
- 2 x 7025 (low-noise 12AX7 variant)
- 1 x 6X4 rectifier
