SP4
A fully assignable sixteen-channel immersive processor with balanced XLR outputs, Dirac Live support, flexible manual EQ and mature 4K HDMI connectivity.
SP4 supports sixteen fully assignable channels and more than one hundred speaker-layout possibilities, making it substantially more flexible than its simple channel count suggests.
The design can also repurpose unused primary-theatre channels for secondary zones, which reflects its origin as a highly configurable installation platform.
Sixteen balanced XLR outputs are standard, with an optional RCA board that duplicates the analog outputs. The HDMI architecture is 4K HDMI 2.0/HDCP 2.2 rather than a modern 40/48Gbps 4K120 platform.
That distinction is important in 2026: the SP4 can still be a serious audio processor, but a project with current gaming or 8K/4K120 requirements may need external video switching or a different processor.
Dirac is one of several calibration paths.
SP4 can be calibrated with Dirac Live, Room EQ Wizard-assisted workflows or manual channel equalisation. Bryston also supports permanent monitoring microphone workflows for remote diagnostics.
The flexibility is valuable, but the final result still depends on careful crossover, bass-management and target-curve decisions rather than simply running an automated measurement.
Route
Optimise
IntegrateThe processor is part of the room architecture.
When we would shortlist it
Existing Bryston systems where balanced analog connectivity and brand continuity matter.
Audio-led cinemas that do not require the newest HDMI 2.1 gaming/video feature set, or systems where video switching is handled elsewhere.
See the product from every useful angle.
Manufacturer-supplied imagery, consistently scaled for a clean front, detail and connection view.
Official product information.
Manufacturer information is provided as a reference. We confirm current details for every enquiry.
Discuss this product for your own requirements.
This is an informational listing, not live inventory or an online offer.