hifi engine

Manual Library / DBX


Linear Dynamic Range Enhancer (1981)

add a review add a review



The 1BX is the most sophisticated one-band expander on the market.

It provides as much as a 50% improvement in stereo dynamic range over a wide frequency spectrum.

It's true RMS detector has an infrasonic filter - 10 dB/octave at 30 Hz - to prevent mistracking caused by vibration, turntable rumble or record warps.

It's 10-LED display enables you to monitor the amount and the direction of gain change resulting from the expansion process.


Dynamic range: 110dB

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.1%

Maximum output level: 6V RMS

Dimensions: 278 x 95 x 255mm

Weight: 2kg


instruction/owners manual   English - darksky

Series Two flyer   English - maxxim

Related Catalogues


Silence and Super Dynamic Range

If you have any problems opening files please read the download FAQ. All files are provided under strict licence and reproduction without prior permission or for financial gain is strictly prohibited.

If you have additional documentation please consider donating a copy to our free archive.


This website is not affiliated with or sponsored by DBX. To purchase 1BX/1BX Series Two spares or accessories, please contact the company via their website or visit an authorised retailer.