Connection context
Inputs: 2 × Low Level RCA or 1 × LFE RCA. Outputs: Daisy-chain: 2 × Low Level RCA or 1 × LFE RCA. Wireless: HT-Air MKII is manufacturer-listed as an optional accessory.
REL ACOUSTICS · SUBWOOFERS
HT/1003 MKII
HT/1003 MKII is built around low-level and LFE connectivity, a sealed front-firing 10-inch driver and 300-watt Class D amplification. It does not provide REL High Level input.
$1,599
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.
New product · Enquiry only · No online checkout
WHO IT IS FOR
Who it is for
Primary roles
- The compact entry point to Serie HT for low-level/LFE-led cinema or mixed-use systems.
ARCHITECTURE
Verified features, explained in system context.
Installation and integration
Use only low-level/LFE connection guidance; do not show High Level wiring. Keep the mains disconnect accessible and observe ventilation instructions. Do not vertically stack HT/1003 MKII.
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
- Requires an RCA low-level or LFE signal path; it has no High Level Speakon input.
- Daisy-chain outputs can support a planned multi-sub signal topology, but do not determine quantity.
- Processor bass management, gain and phase must be reviewed as part of the complete system.
Known boundaries
- 24 Hz is the technical-table -6 dB specification; an FAQ 22 Hz claim is intentionally excluded.
- No High Level input is fitted.
- The model is not designed for vertical line-array stacking.
ROOM & INSTALLATION
Conditions to establish before specification.
- Compact dimensions can assist placement, but room area alone cannot establish suitability.
- Measure modal behaviour, decay and seat variation before deciding model or quantity.
TECHNICAL REFERENCE
Specifications grouped for useful comparison.
Manufacturer specifications
- Type
- Closed box; front-firing active driver
- Active driver
- 10 in / 250 mm CarbonGlas
- Passive radiator
- None
- Manufacturer low-frequency extension
- -6 dB at 24 Hz
- Power output
- 300 W RMS
- Amplifier
- Class D
- Dimensions (W × H × D)
- 362 × 343 × 387 mm
- Net weight
- 15.5 kg
- Manufacturer-listed finish family
- Line-grained composite cabinet with gloss top plate; current global feed shows Black and White
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.
REL ACOUSTICS · SUBWOOFERS
HT/1510 Predator
HT/1510 Predator combines a sealed front-firing 15-inch CarbonGlas driver, 1,000-watt amplification, RCA and XLR LFE connections, and manufacturer-designed stacking hardware. Selection and installation require room, electrical and structural review.
$4,199
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.
REL ACOUSTICS · SUBWOOFERS
HT/1205 MKII
HT/1205 MKII uses a sealed front-firing CarbonGlas driver, Class D amplification and low-level/LFE connections with daisy-chain output. It requires processor-aware setup and measured room integration.
$1,999
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.
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.
FAQ
Before you enquire.
What does the Australian price for HT/1003 MKII cover?+
$1,599 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 HT/1003 MKII, 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 AcousticsHT/1003 MKII
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