REL Q200E Subwoofer Reviewed

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REL Q200E Subwoofer Reviewed

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Looks shouldn't even enter into it. This butt-ugly spud of a subwoofer is saved by its raison d'etre: size. No doubt inspired by the far costlier Sunfire cube, REL's tiniest model is small enough to hide out of sight. And hide it you will, because it looks as grimly functional as one of those miniature fan heaters they sell in the colour supplements. Maybe they should paint a REL logo�or even a happy face on the driver surface, or rename it 'Medusa'. It's no surprise that its Spinal Tap black finish - ideal for, say, an industrial pizza oven or a jack-hammer - is actually called Grittex. But, no matter where you banish it, the Q200E will provide bass you probably never knew existed.

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As it should. The wizards at REL have crammed a 250mm driver into a box measuring only 298mm per dimension, the long-throw unit filling one surface. REL calls the Q200E 'a revolutionary bass engine', and you'll pinch yourself the first time you hear what it can do. Remember: we're talking just under a cubic foot; hell, you could stick it in an LP rack.

REL has also wedged a substantial amplifier into this wee cabinet. Direct-driving the bass unit is a 200W, fully discrete, DC-coupled MOSFET amplifier featuring a balanced-bridge power supply, an 'audio grade' toroidal transformer, 25A bridge rectifier, 20,000 uF total smoothing capacitance and four 'ultra-rugged' output devices. Indeed, peak performance is stated at 400W, which makes you wonder why there's going to be an even wilder version of the Q200E boasting more power.

But aah, the drive unit. The company is staying hush-hush about this US-sourced unit although it's there for all to see; there's no grille available for this basic edition, though a grille will accompany the forthcoming deluxe model. What faces you, naked to the elements, is a fat doughnut of a surround and a flat dust-cap over the diaphragm which suggest exceptional durability. I'm guessing that it's some sort of polypropylene, but don't hold me to it. The woofer is fitted with a massive 7.6 kg magnet, contributing to the Q200E's total weight of 17kg, and it uses a four-layer, edge-wound voice-coil.

Given the magnet size, this baby is unshielded; there's no room to fit an opposing magnet. But - unlike that total yutz Matthew in EastEnders - we all know about keeping speakers away from tapes, TVs, etc., and the Q200E's size encourages distancing the unit away from sensitive items.

REL fits a dynamic electronic protection circuit called Set-Safe which maximises bass delivery and minimises distortion by employing its own brand of soft clipping. Even when accidentally hammering the REL during set-up using the Lexicon MC-1's internal test tones, the sub never sounded like it was going to break. And yet it was delivering signal loud and deep enough in torment mode which would have caused other speakers to, well, expire. Quite obviously, then, the active innards match the driver to perfection.

Because the smallest REL must serve in both audiophile systems as well as A/V surround installations, the back of the unit is filled with enough controls and sockets to ensure that the Q200E can connect to whatever form of connection is on offer. It was thus possible to try the unit in purist mode, in which case REL recommends a pair of Q200Es for true stereo performance, as well as in A/V mode driven by the subwoofer line output from a 5.1 channel surround processor, with plenty of scope for fine-tuning.

Because both high and low level inputs are provided, separate rotary controls are fitted to adjust level for either type of connection. Another rotary controls roll-off, while a fourth allows the user to select modes which invert polarity, again catering for both the high or low level inputs, or to bypass the company's Active Bass Control crossover circuitry when using the low level input. The crossover bears 1% Nitrogen filled polystyrene capacitors and is fitted to a double-sided glass-fibre board with plated-through holes. Connection to the Q200E is through gold-plated, panel-mounted phono connectors for the low level inputs, while a gas-tight Neutrik connector is used for the high level connection. Also found on the back panel are a heat sink, an lEC input socket and, just where you can't see it if you have the speaker facing into the room as you should, a green power-on LED. To that I can only say, 'Doh.'

Supplied with the Q200E are 8mm spikes and nylon feet, a 5m length of phono interconnect and a 10m cable terminated for the Neutrik connector. Proudly hand-built in Great Britain, the REL boasts a three-year worldwide warranty. Oh, and an owner's manual which is a model of clarity. So, please, read it first.

Read more about the Q200E on Page 2.

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