dbx 1BX Series Two 3-Band Dynamic Range Expander

Dynamic Expansion

- Increases the difference between the loudest and softest sounds, adding "life" to recordings.

Single-Band Processing

- Affects the entire audio spectrum uniformly, unlike multi-band expanders.

True RMS Detection

- Ensures accurate processing of signal dynamics.

Infrasonic Filter

- Prevents expansion errors from low-frequency rumble or vibration.

LED Meter

- Visually shows the amount of gain change (expansion) being applied.

Adjustable Expansion

- Ratio controllable up to 1.5:1 for up to 50% more dynamic range.

Versatility

- Works well for music, movies, and enhancing any compressed audio source

Expansion ratio

- 1.0 to 1.5 (up to 50% increase)

Dynamic range

- 100 dB

Frequency response

- 40 Hz to 20 kHz ±0.5dB

Total harmonic distortion

- 0.1% at 1.0 expansion ratio

Noise Reduction

- Up to 20dB reduction in source noise

Input impedance

- 50 kOhms

Input level (nominal)

- 300 mV

Input level (maximum)

- 7 V RMS

Output impedance

- 220 Ohms

Output level (maximum)

- 7 V RMS

Connectors

- RCA type phono connectors

Power requirements

- 117/220 V AC, 50/60 Hz

Dimensions

- 445 mm x 330 mm x 190 mm (17.5" x 13" x 7.5")