The dbx 140A and 180A are professional noise-reduction systems designed for use with recording consoles and tape decks. The unit features integral rack-mounting brackets and requires no special cooling or ventilation. It operates using a record/play (encode/decode) process to reduce noise in audio signals.
| Effective noise reduction | 40 dB or more |
|---|---|
| Frequency response (140A) | 40.5 dB 40 Hz-20 kHz |
| Frequency response (180A) | 50.5 dB 30 Hz-20 kHz |
| Equivalent input noise | -93 dBv |
| Total harmonic distortion (THD) | 0.1% 100 Hz-20 kHz |
| Maximum input and output levels | +23 dBv |
| Input impedance | 1k-ohms, differential |
| Output impedance | Low-impedance, single-ended |
| Dimensions | 1.75"h x 7"d |
The unit requires a nominal 117-V 50/60-Hz ac source.
No, the unit is not equipped with an On/Off switch.
Yes, the chassis has integral brackets for mounting into a standard equipment rack.
Yes, the Jensen JE-123-SLPC is listed as an optional output transformer.