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REL ACOUSTICS · SUBWOOFERS

REL S/550

S/550 combines a 10-inch CarbonAlloy active driver, a 12-inch passive radiator and REL's analogue connection architecture for high-quality music and cinema systems.

$6,299

2-year standard Australian warrantyAvailable to order in Australia. Stock and delivery timing are confirmed for each enquiry.Base single-unit configuration. Optional finishes, grilles, accessories, pairs and arrays are confirmed separately.
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Official REL REL S/550 product view.

WHO IT IS FOR

Who it is for

Primary roles

  • The compact entry point to the current Serie S range, with stereo-pair and Line Array capability available for professionally designed systems.
Official REL REL S/550 alternate finish or grille view.
Official REL S/550 alternate configuration media supplied by REL.
Official REL REL S/550 rear panel or construction detail.
Official REL S/550 detail media supplied by REL.
Official REL REL S/550 shown in a styled room setting.
Official REL room-setting image for REL S/550; it does not represent MSN Audio stock or a local installation.

ARCHITECTURE

Verified features, explained in system context.

01

Connection context

Inputs: High-Level Neutrik SpeakOn, 2 × Low-Level RCA, LFE RCA, LFE XLR. Outputs: High-Level Neutrik SpeakOn, Low-Level RCA, LFE RCA or LFE XLR. Wireless: Compatible with optional Airship Direct. Connection guidance: Class D, balanced-differential, bridged and monoblock amplifier connections require topology-specific instructions. Do not connect from a generic diagram.

02

Installation and integration

Maintain clearance for the down-firing passive radiator and ventilation. Use supplied REL hardware and matched S/550 units only if a Line Array is professionally designed. Measure and tune phase, crossover and level in the installed system.

SYSTEM / ROOM MATCHING

System / room matching notes

Connections, room context, installation and the listening objective are reviewed together before a configuration is proposed.

Fit to confirm

  • Two-channel systems using High-Level or Low-Level input.
  • Cinema systems using RCA or balanced XLR LFE.
  • Systems that may later be evaluated for a matched-model stereo pair or Line Array.

Known boundaries

  • -6 dB at 19 Hz is a product specification, not a prediction of response, decay or achievable level in a particular room.
  • Amplifier subtype and fuse values are withheld because current official sources conflict.
  • Line Array capability does not determine how many units a customer needs.

ROOM & INSTALLATION

Conditions to establish before specification.

TECHNICAL REFERENCE

Specifications grouped for useful comparison.

Manufacturer specifications

Acoustic configuration
Front-firing active driver; down-firing passive radiator
Active driver
10 in (250 mm) long-throw CarbonAlloy driver
Passive radiator
12 in (305 mm) Carbon/Carbon flat-cone passive radiator
Manufacturer low-frequency extension
-6 dB at 19 Hz
Amplifier
550 W RMS Class D; subtype held pending REL confirmation
Dimensions (W × H × D)
445 × 372 × 500 mm (W × H × D)
Net weight
31 kg
Manufacturer-listed finish
Piano Black Lacquer or Gloss White Lacquer, 8 coats

EXTERIOR & CONFIGURATION

Confirm the supplied product, not just the model name.

Finish

Current finish options are confirmed during the enquiry. Official media identifies the model but is not an inventory promise.

Supplied configuration

The displayed price is for the reviewed base single-unit configuration. Finish, accessories, pairing and any other configuration are confirmed in writing before an order is accepted.

ADJACENT ROLES

Compare architecture before choosing a model.

Official REL REL S/850 product view.

REL ACOUSTICS · SUBWOOFERS

REL S/850

S/850 pairs a 12-inch CarbonAlloy active driver with a 12-inch passive radiator, 850 W RMS amplification and REL's analogue High-Level and LFE architecture.

$7,799

2-year standard Australian warrantyAvailable to order in Australia. Stock and delivery timing are confirmed for each enquiry.Base single-unit configuration. Optional finishes, grilles, accessories, pairs and arrays are confirmed separately.
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MEASUREMENT REMAINS INDEPENDENT

Establish the room evidence before prescribing a product outcome.

Room & Bass Measurement can identify the bands and decay behaviour that deserve attention without presuming this product, a quantity or a placement is the answer. The service does not require a product purchase.

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FAQ

Before you enquire.

What does the Australian price for REL S/550 cover?+

$6,299 is the base single-unit price with a two-year standard Australian warranty. Optional finishes, grilles, accessories, pairs or arrays are confirmed separately. Availability does not imply local stock or a fixed delivery time. These warranty terms do not limit statutory consumer guarantees under Australian Consumer Law.

SOURCES & REVIEW

Product facts remain traceable.

Official REL Acoustics source material checked 23 July 2026. The published Australian price is paired with 2-year standard Australian warranty. Availability and expected delivery timing remain subject to order confirmation.

AUSTRALIAN ENQUIRY & SUPPORT

Australian enquiry and support path

Ask about availability for REL S/550, then share the system and decision in front of you. MSN Audio will confirm the supplied configuration, Australian support path and whether this product is relevant.

REL AcousticsREL S/550

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