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Surround processors

Surround-sound preamplifier-processors (no power amplification).

36 of 60
Vendor spec, measurement agreesVendor spec, unverifiedIndependent measurementVendor claim disputed by measurement inspect: conflict and/or normalized value Gold is a vendor figure: a fact — dimensions, driver/connector counts, supported formats — trusted and never disputed, or an unverified performance claim still awaiting independent measurement.
Meridian 271 Digital Theatre Controller ·2017 $2,00016-channel input / 20-channel output (16+4)········5
Emotiva XMC-2+
XMC
$2,9999.1.682YesYesDirac Live·16··
Emotiva RMC-1L+
Differential Reference
$3,2999.1.682YesYesDirac Live····
Emotiva RMC-1+
Differential Reference
$3,4999.1.682YesYesDirac Live·16··
Anthem AVM 70 8K ·2021 ◆3 $3,99915.273YesYesARC GenesisYes15Yes10.1
Monolith by Monoprice HTP-1 ·2019 ◆2
Monolith
$3,999 ea1682YesYesDirac LiveYes16Yes7.3
Marantz AV 30 ·2026 ◆2
AV
$4,00011.473YesYesAudyssey MultEQ XT32···11.1
Primare SP25 Prisma
25 Series
$5,29911.242YesYesDirac LiveYes·Yes10
Marantz AV 20 ·2025 ◆2
AV
$6,00013.473YesYesAudyssey MultEQ XT32 (Dirac Live upgradable)·YesYes15
McIntosh MX200 ·2024 ◆1
MX · MX200
$6,00011.241YesYesDirac Live (full bandwidth)Yes11No7.7
JBL Synthesis SDP-58 ·2022
SDP · SDP-58
$6,90016-channel processing (up to 9.1.6 immersive)82YesYesDirac Live with Bass Control (JBL Synthesis enhancements)·16·10.7
Anthem AVM 90 8K ·2022 ◆1 $7,49915.473YesYesARC GenesisYes15Yes10.1
Marantz AV 10 ·2022 ◆2
AV
$8,00015.473YesYesAudyssey MultEQ XT32Yes15Yes16.8
McIntosh MX123
MX · MX123
$8,50013.273YesYesAudyssey MultEQ XT32·13Yes14
NAD M17 V2i ·2022 ◆3 $9,9997.1.452YesYesDirac Live Full BandwidthYes···
Trinnov Audio AltitudeCI ·2025 ◆2 $11,0008–32 (licensable)42YesYesTrinnov Optimizer (+ WaveForming, Remapping)Yes8Yes8.6
Lyngdorf Audio MP-40 2.1 ·2022 ◆2
MP · MP-40 2.1
$11,2991232YesYesRoomPerfect·16·6.7
Datasat LS10 ·2015 $12,500 ea15 channels (up to 13.1)72YesYesDirac Live·15No11.61
StormAudio ISP Core 16 ·2022 ◆2 $12,99916 base, Core 16+ up to 1872YesYesDirac Live with Room Correction, Bass Control and Active Room Treatment modules includedYes··9
Bryston SP4 ·2018 ◆2
SP · SP4
$13,9951672YesYesDirac Live·16·13
Lyngdorf Audio MP-60 2.1 ·2021 ◆1
MP · MP-60 2.1
$14,9991652YesYesRoomPerfect·16·9
StormAudio ISP Elite MK3 ·2022 ◆2 $16,99916 / 24 / 32 output channels72YesYesDirac Live with Bass Management Standard/Expert and Active Room TreatmentYes··13.1
Trinnov Audio Altitude16 ·2017 ◆4 $18,5002082YesYesTrinnov Optimizer (3D Remapping)Yes16·11.3
StormAudio ISP Evo ·2024 ◆2 $20,79920 base, up to 32 (24 decode/upmix)72YesYesDirac Live with Bass Management Standard/Expert and Active Room TreatmentYes··9
JBL Synthesis SDP-75 ·2021
SDP · SDP-75
$31,25016 / 24 / 32-channel (configuration-dependent)72YesYesTrinnov Optimizer (multi-point room EQ)···14.5
Acurus ACT 4 20-channel··YesYesAcurus ASPEQT···11.3
Acurus MUSE 16-channel··YesYesAcurus room tuning / ASPEQT···10.4
Arcam AVP45 ·2026 9.1.673YesYesDirac LiveYes16Yes9.4
AudioControl Maestro X7S 9.1.673YesYesDirac Live + Bass ControlYes16Yes12.3
AudioControl Maestro X9S 9.1.673YesYesDirac Live + Bass ControlYes16Yes12.3
Datasat RS20i ·2013 16 channels41YesYesDirac Live··No12.02
JBL Synthesis SDP-80 ·2025
SDP · SDP-80
36-channel processing82YesYesTrinnov Optimizer (Harman Target Curve)···14.5
Rotel RSP-1576MKII ·2020
RSP · MKII
7.1.472YesYesDirac Live Full·2·8.8
Steinway Lyngdorf P100 2.1 12 decoded channels32YesYesRoomPerfect··Yes6.6
Steinway Lyngdorf P300 2.1 16 native channels52YesYesRoomPerfectYes·Yes8.4
Trinnov Audio Altitude32 ·2014 ◆1 3682YesYesTrinnov OptimizerYes16·14.5