REL Acoustics - T/9x Subwoofer (2024)

Serie T/x is instantly seen as crisper, fresher, a full upgrade . Our goals were not simply to improve upon its illustrious predecessor, but to deliver as much as possible of our latest Serie S on a budget. Faster, more transparent sounding system performance awaits you with higher output levels and even greater impact.

Serie T/9x: Bigger AND Better - The Series Flagship
The job of any range topper for REL is to deliver more of everything, particularly output and dynamics. The 9x is no different in this regard, as it delivers the goods in both music and theatre applications. 9x, however, delivers a level of intimacy, clarity and speed that means there are no longer trade-offs between the sonic balance of smaller models weighed against the power and scale of a model 9. The all new 9x has even greater output than before, but the headline news is the way it sacrifices nothing in clarity and transparency to achieve this. At this price it opens the pathway for owners of high performance European floor and stand mounted monitors and smaller panel speakers to enjoy truly full range sound.

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Reimagined, Then Reengineered - A completely redesigned flagship
Many don’t realize the intense linkage between performance and design here at REL. Performance is everything to us and so it drives physical design revisions. Our engineers, recognizing the need for greater acoustic volume to achieve the goals of greater fluidity and power, turn to the designer who works dimensions to fool the eye into seeing a smaller, more compact footprint even though cabinet volume increases. Using gently rounded corner radii that allows the eye to flow over and see less visual mass. The result is both modern and familiar with no unnecessary adornment.

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Outsized Performance - Innovative Alloy/Fibre Bass Engines
To achieve higher output with better control requires a complete overhaul of the suspension components. Much like the suspension on a sports car, these items are responsible for the tuning and feel of our designs. By increasing the cabinet volume, efficiency is improved yielding higher output for no more amplifier power. Less back pressure inside the cabinet means we can tune for a stiffer, better controlled driver suspension. We retained the best aspects of our previous design, such as the aluminum center cap responsible for stiffening the lightweight 10” (250mm) cone while adding almost no mass. The updated combination produces considerably better attack and dynamics with greater transparency.

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Tried and True Amplifiers - The Brains Behind the Brawn
We have retained our signature Class A/B amplifiers used in every generation of Serie T since 2006. Reliability is the key to happy ownership and with some 200,000 and counting of this range leading long happy lives, Serie T/x owners can feel certain of REL’s standard setting reliability. The powerful 300 watt mosfet amplifier used in the T/9x remains an icon with huge reserves of current, massive power supplies but small upgrades are found everywhere. New driver mosfets that open up performance and transparency and new methods for securing the toroidal transformers mean better performance and superior strength. REL’s legendary High Level Input connection and fast filters are a significant part of the REL story. Connecting via the speaker outputs of your amplifier without drawing any power from it may seem like magic, but the real magic lies in the way the sound takes on a natural character. Unique tuning and special limiters means the T/x range sounds fresher, faster and more dynamic than before.

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Wireless That Doesn’t Compress the Sound - Unlimited Possibilities
At REL, we’ve developed a sterling reputation for building the finest sounding, fastest wireless systems available in the industry. We never rely upon digital compression as it results in dull, lifeless sound. Instead, we have perfected an (optional) Arrow™ wireless system so fast and dynamic we’re comfortable encouraging the use of wireless on one channel of a pair of RELs while the other channel may be connected conventionally with cable.

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Specifications
- Type: Front-firing active driver, down-firing passive
- Active Driver Size & Material: 10 in. FibreAlloy™, 254mm long-throw, inverted alloy dust cap,
steel chassis
- Passive Radiator Size & Material: 10 in., 254mm long throw, inverted dust cap
- Low Frequency Extention: -6dB at 27 Hz
- Input Connectors: High Level Neutrik Speakon, Low Level single RCA, LFE RCA
- Output Connectors: N/A
- Power Output: 300 watts (RMS)
- Amplifier Type: Class A/B
- Wireless Capability: Arrow (Optional), Zero Compression Single Large Scale Integrated Chip

Protection System
- Fully Electronic Set Safe: Yes
- D.C. Fault: Yes
- Output Short: Yes
- Mains Input Voltage: 220-240 volts, 110-120 volts for certain markets
- Fuses: 3.15 Amp semi delay 230 volts operation, 6.3 Amp semi delay 115 volts operation

Dimensions
- W x H x D: 14.5 x 13.4 x 15.5 in., (370 x 340 x 393 mm)
- Net Weight: 45.5 lbs. (20.6 kg)
- Finish: High Gloss Black, High Gloss White, 5 coats

Supplied Accessories
- Mains Lead: Yes
- Neutrik Speakon: Yes (10 Meters Nominal)
- Interconnect: -
- Users Manual: Yes

Brochure

Manual

Reviews


REL Acoustics - T/9x Subwoofer (2024)

FAQs

Are REL subwoofers worth it? ›

REL makes subs that are fast as lightning as well as tuneful, tight and much lower in bass output. It's due to the design and engineering going on. They are quality subwoofers. I will say it again.

Should I leave my REL subwoofer on all the time? ›

1. Phase: with your HT plugged in and turned on (use “Auto Standby” if you must but our preference is to leave in the Always On mode as HT's draw very little power at idle and not constantly turning any amplifier on and off will allow it to last longer before the power supply capacitors break down.)

What are the best settings for REL sub? ›

The Level control should be at a setting where you can hear the REL even with the main speakers playing. This is Generally 15 clicks +/- 3 clicks. The Crossover control should be set to where the sub bass is not overpowering or sloppy.

Why is the subwoofer not working? ›

Check your wall outlet.

Unplug the subwoofer and plug it back in. It should have a standby light if it's receiving power. If it's not, test the outlet with something else, like a lamp. If the outlet has no power, the issue is with the outlet (although hopefully it's something simple, like a tripped circuit).

How do I make my subwoofer sound the best? ›

It is recommended that for optimal quality sound, you should place your subwoofer within 8-12 inches of a wall, facing outwards towards the rest of the room. For even more output, consider placing your subwoofer in the corner of your room, as it can significantly increase the overall sound due to the positioning.

What is the best subwoofer setting for bass? ›

Subwoofer Settings

If you have large floor-standing main speakers, set the subwoofer's crossover between 40Hz and 60Hz. If you have smaller bookshelf speakers, set the crossover slightly higher at around 50Hz to 80Hz. For small satellite speakers, set the crossover between 80Hz and 160Hz.

What level should I set my subwoofer? ›

Most people find that 70 or 75 dB on your SPL meter at your listening seat is a comfortable playback level. While 85 dB SPL is often used for THX movie theaters, that level is simply too loud for most listeners with test signals in the confines of an average-sized home theater or living room.

How do you fix a weak subwoofer? ›

Improper Polarization. Phase problems could be making your subwoofer sound weak. Try flipping the polarity on the sub so that its driver moves inward while the other speakers's drivers move outward and vice versa. You might find that reversing polarity actually makes your sub more powerful.

Why is my sub so quiet? ›

Move the subwoofer closer to the soundbar.

Ensure there are no obstacles that could cause interference, such as furniture, Wi-Fi routers, Bluetooth devices, and microwaves.

Why does my subwoofer not sound as good? ›

One of the most common culprits of weak subwoofer performance is incorrect wiring. Ensure that your subwoofers are wired according to the recommended impedance (ohms) and configuration (series or parallel). Incorrect wiring can lead to mismatched impedance, resulting in reduced power and diminished output.

Where are REL subs made? ›

Doesn't look like Sumiko makes subwoofer anymore. New models carry the Sonus Faber emblem. Also since some years ago REL moved manufacturing to China.

Are more expensive subwoofers worth it? ›

Some more expensive subwoofers offer features that let you fine-tune the sound to better suit the acoustics of your room or your taste in bass. These features are less important if you take the time to properly position your subwoofer, but your room layout may prevent you from putting your sub in the perfect place.

Is a soundbar with built in subwoofer worth it? ›

Whether you're a fan of watching action movies or listening to bass-heavy music genres, you may want a soundbar with a dedicated subwoofer. A subwoofer can generally deliver a deeper, more powerful bass than a standalone bar, which helps you feel the deep thump and rumble in bass-heavy content.

Are in wall subwoofers worth it? ›

In-wall subwoofers are a great way to enhance the overall audio experience in your home theater or surround sound system. Without a subwoofer you are simply not getting the full experience from music, movies, streaming TV, and video games. While in-wall subwoofers won't generally win the performance battle vs.

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