REL Acoustics T/9x SE Subwoofer

£1,549.00

Product variants

Available to order from Warehouse

Pickup available at Yorkshire AV Store

Usually ready in 4 hours

Pairs well with

REL Acoustics T/9x SE Subwoofer

Italian Racing Red

£1,549.00

Full Description

A Special Edition subwoofer in bold colours, with a carbon-fibre centre cap that reduces mass for faster response. A 300W Class A/B monoblock ensures dynamic bass, with chrome feet and badges and optional Arrow wireless.

Compare The Range

REL’s Serie T/x flagship in its two forms, side by side. Here is the T/9x SE alongside the standard T/9x, showing what the Special Edition adds to the same cabinet and amplifier.

	T/7x	T/9x	T/9x SE This model
Price	£999	£1,399	£1,549
Woofer Size	8 in	10 in	– same task
Bass Extension	-6dB at 30 Hz	-6dB at 27 Hz	27 Hz at -6 dB
Subwwofer Output	200 W	300 W	300 W
Dimensions (HxWxD)	320 x 356 x 363 mm	340 x 370 x 393 mm	340 x 370 x 393 mm
Weight	17.5 kg	18.7 kg	20.6 kg \| 22.65 kg

The long read.

The T/9x SE is the Special Edition of REL’s Serie T/x flagship, and the difference is more than the paint. It keeps the T/9x’s cabinet, 300-watt amplifier and passive radiator, but its active driver gets a centre cap made of carbon fibre instead of aluminium. That makes the cone stiffer and lighter, and REL retuned the suspension and amplifier to make use of it. The finishes are high-gloss colours taken from motorsport, with chrome feet and badge and carbon detailing. It is the T/9x for someone who wants a subwoofer to be seen as well as heard, and who is happy to pay a modest premium for a measurable step in speed.

Brief product overview
The T/9x SE has a front-firing 250mm (10-inch) long-throw driver with a pure carbon-fibre centre cap in place of the standard aluminium one. REL quotes about 10 grams less moving mass and around 1.2dB more sensitivity, which means the amplifier works less hard for the same output. It is paired with a down-firing 250mm passive radiator, an unpowered cone driven by the air inside the cabinet that extends the bass without port noise. Power comes from the T/9x’s 300-watt MOSFET Class A/B amplifier, retuned for the faster driver, and bass extends to 27Hz at −6dB in-room. Inputs are REL’s high-level Neutrik Speakon connection from the amplifier’s speaker terminals, a low-level RCA input and a dedicated .1/LFE input with its own level control. There is a phase switch, a standby switch on UK units, and optional Arrow wireless. The Special Edition finishes are Italian Racing Red, Tangerine Dream, Le Mon Yellow, French Racing Blue and Green With Envy, with triple-chrome-plated feet, a chrome badge and a carbon border on the top badge. It measures 370mm wide, 340mm high and 393mm deep, and weighs 20.6kg.

How it sounds
The T/9x SE has the same scale and depth as the T/9x, with sharper leading edges. The lighter, stiffer cone starts and stops more quickly, so kick drums, bass guitar and timpani have more snap and definition, and the quieter cone lets more low-level detail through. REL describes it as going slightly deeper and hitting a little harder, and the improvement is clearest on fast, complex bass lines rather than sustained low notes. Fed through the high-level connection, it takes on the tonal balance of the main speakers and blends into the soundstage once set up, widening and deepening the image even with speakers that already go deep. It keeps the same limits as the T/9x: film at high level in a large room is still better served by a Serie HT model, and in a big space a second unit makes a bigger difference than any single-sub upgrade.

What we’d partner it with
The Monitor Audio Silver 500 8G is a floorstander with real bass of its own, and that shapes how the T/9x SE works with it. It is a three-way design with twin 8-inch C-CAM bass drivers, a dedicated 3-inch midrange and a 25mm Gold Dome tweeter, quoted to 28Hz in-room with 90dB sensitivity and an 8-ohm nominal load dipping to 3.6 ohms. Here the REL is not filling a gap in extension. It adds a second bass source that can sit where the room responds best, evening out peaks and nulls the floorstanders cannot avoid from their own positions. It also adds cleaner output in the lowest octave at higher levels, and a larger, more stable soundstage. The Silver 300 8G is the smaller alternative for rooms under about 25 square metres, where the T/9x SE carries more of the lowest bass. The Sonus Faber Lumina III is a slimmer three-way with a warmer balance.

For amplification, the Atoll SDA300 Signature has the power the Silver 500 8G is designed for: 150 watts per channel into 8 ohms and 280 into 4 ohms from a MOSFET double push-pull output stage with twin toroidal transformers. It has a pure Class A preamplifier stage, a Burr-Brown DAC, and streaming via UPnP, Qobuz, Tidal, Deezer and Spotify. It has no phono stage, so a turntable needs one such as the Rega Fono MM. The Arcam SA45 is an alternative with 180 watts, MM and MC phono inputs and Dirac Live. The Hegel H120 is a more affordable one with streaming built in. The T/9x SE is supplied with a 10m Speakon lead for the high-level run. For the main speakers, use a well-made cable of appropriate gauge; AudioQuest and Chord are the cable brands we stock. A second T/9x SE as a stereo pair, one near each speaker, is the natural next step, and REL is happy for the two to be in different colours.

Specifications

Physical characteristics

Weight	20.6 kg \| 22.65 kg
Dimensions (HxWxD)	340 x 370 x 393 mm

Speaker characteristics

Driver Size	10" (250mm)
Subwoofer output power	300 W
Bass Extension	27 Hz at -6 dB

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