Used BSS DPR-422 Dual Compressor/De-Esser
Used BSS DPR-422 Dual Compressor/De-Esser units are dual-channel processors combining a high-quality compressor with a sophisticated de-esser, built around a unique internal architecture that eliminates distortion and noise found in conventional compressors. Second-hand examples are a well-regarded choice for engineers needing versatile signal control in a single unit. Scroll down to see the used BSS DPR-422 listings currently available.
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BSS DPR-422 Dual Compressor/De-Esser specifications
| Brand | BSS |
| Segment | Audio |
About the BSS DPR-422 Dual Compressor/De-Esser
The BSS DPR-422 Dual Compressor/De-Esser delivers two independent channels of signal processing, each offering a full range of level control facilities. Its unique double side-chain and subtractor architecture, pioneered on the DPR-402, produces a cleaner, purer signal by eliminating distortion and unwanted side-effects common in conventional compressors. Each channel features a variable ratio compressor with BSS's proprietary progressive knee characteristic, delivering soft-knee musicality at low ratios and hard-limiter precision at maximum settings. Attack and release time constants can be set to respond automatically to programme content, reducing operator intervention. The tuneable de-esser section offers broadband de-essing and additional options to suit different programme material, while a comprehensive LED metering section keeps engineers fully informed at all times.
BSS DPR-422 Dual Compressor/De-Esser — buyer FAQs
What is the BSS DPR-422 and what does it do?
The BSS DPR-422 is a dual-channel compressor and de-esser in a single unit. Each channel combines a full-range compressor with a tuneable de-esser section and a comprehensive LED metering display. Its internal architecture pairs a double side-chain with a subtractor to eliminate the distortion and noise associated with conventional compressor designs, producing a cleaner signal path.
What compression and de-essing controls does each channel of the DPR-422 offer?
Each channel provides a variable ratio compressor with BSS's progressive knee characteristic, which moves gradually from soft-knee musicality at low ratios to hard-limiter precision at high settings. Attack and release times can be switched to an AUTO mode that responds to the dynamic and harmonic content of the programme, reducing manual intervention. The de-esser section is tuneable and offers broadband de-essing as one of its main options.
What is broadband de-essing on the DPR-422?
Broadband de-essing on the DPR-422 extends normal compressor operation by compressing the whole signal whenever high-frequency content exceeds a pre-set de-ess threshold level. The unit also provides a second de-essing option to suit different programme material and means of reproduction, giving engineers flexibility to address sibilance problems across a range of sources and playback contexts.
Who makes the DPR-422 and how does it relate to earlier BSS designs?
The DPR-422 is made by BSS Audio, a British professional audio brand originally known as Brooke Siren Systems, now part of Harman Professional Solutions. Its internal architecture was pioneered on the earlier DPR-402, meaning the DPR-422 carries forward and extends that established compressor design within BSS's signal processing range.
What should I check when buying a used BSS DPR-422?
On a used DPR-422 confirm that both channels are fully operational, that front-panel controls including the tuneable de-esser, compressor parameters and AUTO mode switch all respond correctly, and that the LED metering section functions on each channel. Condition affects price, so review the listing description carefully. Used units sold here carry a 21-day warranty covering major functional faults; full details are in the buying guide at https://www.10kused.com/used-av-equipment-guide/.
