REL Acoustics T/5x

Overview

The REL Acoustics T/5x is a compact active subwoofer built around an 8 inch driver and REL's music-first philosophy. As the entry point into the celebrated T/x line, it is engineered to disappear into a room while filling in the foundation below your main speakers, adding weight, air and a genuine sense of scale without ever calling attention to itself. Its small cabinet footprint makes it ideal for apartments, smaller listening rooms and living spaces where a large subwoofer would dominate.

What sets the T/5x apart is REL's signature high-level Speakon connection, which draws its input directly from your main amplifier's speaker terminals. Because the sub sees the same signal your speakers do, it inherits the exact character, voicing and timing of your amplifier, so the bass integrates seamlessly rather than sounding like a separate box. A dedicated .1/LFE input is also provided for home theater duty, and continuously variable crossover, gain and phase controls let you dial the T/5x in precisely to your room and speakers.

The T/5x is aimed at the music listener who wants faster, more nuanced low frequency reproduction from standmount or compact floorstanding speakers, while retaining the flexibility to serve double duty in a home theater system. It is also fully at home in stereo pairs, where two units deliver a wider, more even soundstage and greater low frequency headroom.

Key Features

• 8 inch long-throw forward-firing driver in a compact sealed enclosure for fast, tuneful bass
• REL signature high-level Speakon connection follows the character and timing of your main amplifier for seamless musical blending
• Separate .1/LFE input for home theater use alongside music duty
• Efficient onboard Class D amplification tuned for control and speed
• Continuously variable crossover, gain and phase controls for precise room integration
• Compatible with REL Arrow wireless for a clean, cable-free high-level connection
• Can be run in stereo pairs for wider soundstage and greater headroom
• Compact footprint suited to apartments and smaller listening rooms
• Premium high-gloss finish and rigid cabinet construction

How the T/5x Compares

REL T/5x vs REL Acoustics T/7x

The T/7x steps up within the same music-focused T/x line, offering greater output and low frequency headroom from a larger cabinet and more powerful amplifier. Choose the T/5x for compact rooms and standmount speakers where a smaller footprint is welcome, and step up to the T/7x when you have a larger room or more demanding main speakers that call for deeper reach and greater scale. See the REL Acoustics T/7x.

REL T/5x vs REL Acoustics T/9x

The T/9x carries a 10 inch active driver plus a down-firing passive radiator and a larger amplifier, delivering deeper extension and more effortless output for bigger rooms. The T/5x shares the same musical high-level connection philosophy in a far more compact and affordable package, making it the natural pick when space and speaker size are modest. See the REL Acoustics T/9x.

REL T/5x vs REL Acoustics Classic 98

The Classic 98 offers a vintage-inspired aesthetic and a 10 inch driver voiced for a rich, warm presentation. The T/5x by contrast is a modern compact design with a smaller 8 inch driver, prioritizing agility and easy placement over the larger cabinet and greater output of the Classic 98. See the REL Acoustics Classic 98.

Recommended System Pairings

A subwoofer augments an existing system, so pair the T/5x with compact main speakers, an amplifier to drive them, and a REL wireless kit or high-level cable for clean integration.

• Mission 750 Bookshelf Speakers These compact standmounts are an ideal partner for the T/5x, which fills in the low frequencies below them for a full-range sound without a large floorstander footprint.
• Mission 778X Integrated Amplifier A capable integrated to drive your mains, and its speaker terminals feed the T/5x's high-level Speakon connection so the sub follows the amplifier's exact character.
• Audiolab 6000A MKII Integrated Amplifier A refined, versatile integrated whose speaker outputs pair naturally with the T/5x's high-level input for seamless musical blending.
• REL Arrow Wireless The Arrow system is designed specifically for the T/x line, delivering a clean, cable-free high-level connection so you can place the sub freely in the room.
• REL Bassline Blue High Level Cable An upgraded high-level cable that refines the connection from your amplifier to the T/5x for the cleanest possible signal transfer.

Frequently Asked Questions

What size driver does the REL T/5x use?
The T/5x uses an 8 inch long-throw, forward-firing driver in a compact sealed enclosure, tuned for fast and tuneful bass.

How does the T/5x connect to my system?
It offers REL's signature high-level Speakon connection taken from your main amplifier's speaker terminals, plus a low-level RCA input and a dedicated .1/LFE input for home theater.

Why is the high-level connection important?
The high-level Speakon connection lets the T/5x see the same signal your main speakers receive, so it inherits the character and timing of your amplifier and blends seamlessly for music.

Is the T/5x good for music or home theater?
It is designed as a music-first subwoofer, part of REL's T/x line, but its separate .1/LFE input makes it fully capable in a home theater system as well.

Can I use two T/5x subwoofers together?
Yes. REL subs are frequently run in stereo pairs, which widens the soundstage, evens out room response and adds low frequency headroom.

What amplifier power does the T/5x have?
The T/5x uses an efficient onboard Class D amplifier rated at 125 watts RMS.

How low does the T/5x go?
It reaches down to approximately 32Hz measured at -6dB in room, delivering satisfying weight and depth for its compact size.

What controls does the T/5x have?
It provides continuously variable crossover and gain controls plus a phase switch, allowing precise integration with your speakers and room.

What rooms is the T/5x best suited to?
Its compact footprint makes it ideal for apartments, smaller listening rooms and living spaces where a larger subwoofer would dominate.

Can the T/5x be used wirelessly?
Yes, it is compatible with the REL Arrow wireless system designed for the T/x line, giving you a clean, cable-free high-level connection.

What finishes are available?
The T/5x is offered in high gloss black and high gloss white.

What speakers pair well with the T/5x?
Compact standmounts such as the Mission 750 are an excellent match, since the T/5x fills in the low frequencies below them for a full-range result.

Do I still need an amplifier if I add a T/5x?
Yes. The subwoofer augments an existing system, so you need an integrated amplifier or amplifier such as the Mission 778X or Audiolab 6000A MKII to drive your main speakers.

How is the T/5x different from the T/7x?
The T/7x offers greater output and low frequency headroom from a larger cabinet and amplifier, while the T/5x prioritizes a smaller footprint for compact rooms and speakers.

Does the T/5x include the cables I need?
Yes, it ships with a high-level Speakon connection cable, a low-level RCA cable and a power cable to get you started.

Can I upgrade the connection cable?
Yes, the REL Bassline Blue High Level cable is an upgraded option that refines the signal transfer from your amplifier to the T/5x.

How heavy is the T/5x?
It weighs approximately 12.3 kg (27 lbs), making it easy to position in most rooms.

Does the T/5x work with any brand of amplifier?
Yes. The high-level connection works with virtually any amplifier via its speaker terminals, and the sub simply follows the character of whatever amplifier drives your mains.

Is a subwoofer a replacement for full-range speakers?
No. A subwoofer adds low frequency foundation to an existing system, extending and reinforcing the bass below your main speakers rather than replacing them.

Why buy from All Elite Audio?
All Elite Audio is an authorized REL Acoustics dealer based in Maryland, so your T/5x is genuine, covered by the full REL 3 year parts and labor warranty for the original owner, and supported by expert guidance on integration and pairing.