REL T/7x – 8" Powered Subwoofer

REL Serie T/x: T/7x – 8" Powered Subwoofer

T/7x is the perfect answer for the real world. It’s compact enough (and beautiful enough) to end arguments before they begin, while powerful enough to easily answer most needs and balanced enough to blend beautifully with many of the quality speakers out there, and still flexible enough to work in specialty applications. Blending speed, punch, and refinement, T/7x transforms smaller and mid-sized rooms with surprising scale and musical warmth.

• 8” FibreAlloy long-throw active driver with inverted alloy centre cap
• 10” FibreAlloy down-firing passive radiator with inverted alloy centre cap
• 200-watt (RMS) Class A/B amplifier
• –6 dB at 30 Hz Low Frequency Extension
• Wireless via REL Arrow system (sold separately)
• 38.5 lbs. (17.5 kg) Weight
• Made in China
• 3 Year Warranty

Highlights & Key Technologies

Filtered for Purity
REL’s legendary High Level Input connection and fast filters are a significant chapter in 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 and blends seamlessly with your speakers. Unique tuning and special limiters mean the T/7x sounds fresher, faster, and more dynamic than before. T/7x is, without reservation, one of the most-balanced RELs of all time. In order to achieve perfect balance, a sub must weigh speed against heft while ensuring true extension and depth, and do so in a physically harmonious package. T/7x manages to make it all seem easy; quick and delicate for a perfect blend, it can pound out exceptionally deep, tuneful bass that belies its size and plays louder than most will ever require.

Designed to be Better
Many don’t realize the intense connection between performance and design here at REL. Performance is everything, and it leads to physical design solutions. Thus it is that REL’s engineers, in recognizing the need for greater cabinet volume to achieve the goals of greater fluidity and power, turn to the designer. He works dimensions to fool the eye into seeing a smaller, more compact footprint, even though cabinet volume increases, using gently rounded corner radii that allow the eye to flow over and see less visual mass. The result is both modern and clean with no unnecessary adornment.

Innovative Alloy/Fibre Bass Engines
The 8” long-throw active and 10” passive drivers are where T/7x derives its incredible speed and clean finish. A thorough revision of critical suspension components is responsible for the agility and suppleness of T/7x. The T/7x sounds louder and more powerful as expected, but few would predict it is also faster, more reactive, and more transparent than the prior generation, itself a paragon of virtue. Stiffer suspensions better suited to advanced duty mean not only can each driver trace minute details, but also travel farther and handle more power.

Tried and True Amplifiers
REL has retained its 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 200-watt mosfet amplifier used in the T/7x remains an icon of sound and reliability with huge reserves of current. Massive power supplies are used and 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 reliability. The best gets better. (Standby Mode switch is only included on 220V units.)

Uncompressed Wireless Connectivity
REL has developed a sterling reputation for building the finest sounding, fastest wireless systems available in the industry, never relying upon digital compression as it results in thin, lifeless sound. Instead, REL has perfected an optional Arrow Wireless system so fast and dynamic that REL is comfortable encouraging the use of wireless on one channel of a pair of RELs while the other channel is connected hardwired with cable.

REL Sub-Bass System Design & Connectivity
REL products are not traditional subwoofers, but true Sub-Bass Systems, designed to augment the performance of full-range speaker systems to provide, in certain cases, linear response below 15 Hz. To increase versatility of connection, the Serie T/x models have three separate inputs: a High Level input via Neutrik SpeakOn, a .1/LFE RCA input, and a Low Level RCA input, facilitating use with both two-channel stereo systems and AV surround sound systems. The High Level, unbalanced, dual-channel input accepts the stereo signals from the speaker terminals of your receiver, integrated amplifier, or basic amplifier, ensuring the subwoofer receives exactly the same signal as the main speakers so that the character of the bass from the main system is carried forward into the Sub-Bass System. Combined with REL’s Natural RollOff circuitry, this ensures superior integration with the main system. The amplifier’s input impedance is 150,000 ohms, in effect producing no additional load on the rest of the system, and internal circuitry allows connection to many Class D (digital) amplifiers. High Level and .1/LFE inputs can be used simultaneously; the .1/LFE input bypasses the Natural RollOff crossover and passes the low-level signal through only the required 120 Hz fourth-order filter.

Set-Safe Overload Protection
All REL Sub-Bass Systems are designed as true sub bass speakers, reproducing exceptionally deep notes that are felt as well as heard at whatever volume level is set. If set too high, no damage should result because the built-in electronics limit cone movement. This electronic control, called Set-Safe, constantly and instantaneously monitors the output from the power amplifier and is totally transparent in operation until required, detecting the point of incipient clipping and gently soft-clipping the waveform to ensure actual clipping does not occur. A thermal overload device is also fitted; if the unit is deliberately over-driven, it senses the temperature rise and cuts the output, with a recovery time of approximately five minutes.

Details & Specifications

TECHNICAL SPECIFICATIONS
Type: Front-firing active driver, down-firing passive radiator (noted as "down-firing passive" per product page)
Active Driver Size & Material: 8 in. (200mm) long-throw, FibreAlloy cone, inverted alloy centre cap, steel chassis
Passive Radiator Size & Material: 10 in. (250mm) long-throw, FibreAlloy cone, inverted alloy centre cap, steel chassis
Low Frequency Extension: –6 dB at 30 Hz, in room
Input Connectors: Hi Level Neutrik SpeakOn, (1) Low Level RCA, (1) LFE RCA
Output Connectors: N/A
Gain Control Range: 80 dB
Power Output: 200 watts (RMS)
Amplifier Type: Class A/B
Phase Switch: Yes, 0 or 180 degrees
Crossover: Variable between 20–120 Hz
Wireless Capability: REL Arrow system (required), sold separately
Dual Parametric Filter: No

PROTECTION SYSTEM
Fully Electronic with Set-Safe: Yes
D.C. Fault: Yes
Output Short: Yes
Mains Input Voltage: 220–240 volts; 110–120 volts for certain markets
Fuses: 2 Amp semi delay, 230V operation; 4 Amp semi delay, 115V operation

DIMENSIONS & WEIGHT
Dimensions (W x H x D), including feet and rear panel controls: 14.0 x 12.6 x 14.3 in. (356 x 320 x 363 mm); add 1.75in. (44.5mm) in depth when using Hi Level connector
Net Weight: 38.5 lbs. (17.5 kg)
Shipping Weight: 43.0 lbs. (19.5 kg)

FINISH
Gloss Piano Black or Gloss White Lacquer, 5 coats

COUNTRY OF MANUFACTURE
Made in China

WARRANTY
3 Year Warranty (parts and labor)

SUPPLIED ACCESSORIES
Serie T/7x Subwoofer
Grille
6’ AC Power Cord
Neutrik SpeakOn cable, 10 meters (33’6”) nominal
User Manual & Warranty Information