S/850 stands as the benchmark of the Serie S line, with its design innovations shaping and elevating its three stablemates. Every improvement is sweeping and comprehensive, ensuring the entire Serie S family benefits from the advancements pioneered in the S/850.
The results are spectacular: it delivers incredible attack and output beyond even the former Carbon Special at the very limits of performance, yet with the precision, quietness, and clarity that produce true dynamic range. Lightning-fast transients, deep effortless bass, and tonal richness combine to deliver nuance that elevates both music and theater.
REL S/850
Type
Front-firing active driver, down-firing passive
Active Driver Size & Material
12 in. (305mm) long-throw, CarbonAlloy™ cone structure, die cast alloy chassis
Passive Radiator Size & Material
12 in. (305mm), Carbon/Carbon flat cone structure, steel chassis
Low Frequency Extension
-6 dB at 19Hz
Input Connectors
High Level Neutrik Speakon, Low Level (2) RCA, (1) LFE RCA, (1) LFE XLR
Output Connectors
High Level Neutrik Speakon, (1) Low Level RCA, (1) LFE RCA or (1) LFE XLR
Power Output
850 watts (RMS)
Amplifier Type
Linear Class D
Wireless Capability
REL AirShip Direct (sold separately)
Dual Parametric Filter
N/A
Finish
Piano Black Lacquer, Gloss White Lacquer 8 coats
Protection System
Fully Electronic Set Safe
Yes
D.C. Fault
Yes
Output Short
Yes
Mains Input Voltage
220-240 volts, 110-120 volts for certain markets
Fuses
8 Amp semi delay 220 volts operation, 15 Amp semi delay 120 volts operation
Mains Lead
Yes
Neutrik Speakon
Yes (10 Meters Nominal)
Interconnect
-
User Manual
Yes
















