Used BSS DPR-504
Used BSS DPR-504 units are four-channel noise gates designed to manage and eliminate unwanted noise in both live and studio environments, delivering clean, precise audio across multiple independent channels. Available second-hand from professional audio suppliers worldwide, the DPR-504 is a trusted choice for sound engineers and musicians. Scroll down to browse the used BSS DPR-504 listings currently available.
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BSS DPR-504 specifications
| Brand | BSS |
| Segment | Audio |
| Typical used price | $858 (range $858–$858) |
About the BSS DPR-504
The BSS DPR-504 is a four-channel noise gate built for professional audio applications in live and studio settings. Each of its four independent channels applies precise gating to separate audio sources, making it well suited to complex multi-channel setups. The unit controls and eliminates unwanted noise, helping to keep recordings and live mixes crisp and clear. Robust BSS construction is noted by suppliers as contributing to reliable long-term performance, and the DPR-504 pairs naturally with dynamics processors such as the BSS DPR-404 in outboard processing rigs.
BSS DPR-504 — buyer FAQs
What is the BSS DPR-504 and what does it do?
The BSS DPR-504 is a four-channel noise gate designed for professional audio use in live and studio environments. Each of its four independent channels applies precise gating to a separate audio source, allowing unwanted noise to be controlled and eliminated across multiple signals simultaneously. This makes it well suited to complex multi-channel setups where consistent noise reduction across several feeds is required.
Who makes the BSS DPR-504 and where does it fit in the BSS range?
The DPR-504 is made by BSS Audio, a British professional audio brand originally known as Brooke Siren Systems, founded in 1979 and now part of Harman Professional Solutions. BSS specialises in signal processing equipment including compressors, limiters and digital signal processors. The DPR-504 sits within BSS's outboard dynamics range and is a natural companion to the BSS DPR-404 Quad Compressor/De-Esser in a full dynamics processing rig.
What is the BSS DPR-504 typically used with?
The DPR-504 is commonly paired with the BSS DPR-404 Quad Compressor/De-Esser as part of an outboard processing setup. Together the two units cover noise gating, dynamic compression and de-essing, making the combination a practical choice for sound engineers handling both studio recording and live mixing situations where full dynamics control is needed.
What should I check when buying a used BSS DPR-504?
Check the condition rating carefully, as used units range from fair, with visible signs of use, to good condition. Confirm that all four channels are fully operational, since a noise gate with one failed channel limits its usefulness in multi-channel rigs. Ask the seller for photos if not already provided. Every listing on 10K Used carries a 21-day warranty covering major functional faults; full details are in the buying guide at https://www.10kused.com/used-av-equipment-guide/.
How much does a used BSS DPR-504 cost?
The used price of a BSS DPR-504 varies depending on the unit's condition, whether it is sold individually or as part of a package with other processors, and the age of the equipment. Units in fair condition typically sell for less than those in good condition. Check the live listings on this page for current asking prices, and note that many listings include a Make an Offer option if you want to negotiate.
