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REL Serie T/7x subwoofer

Set-up remains the same for audio purposes; use the Speakon cable and high-level input, with the cables connected to the left and right positive and a single negative terminal of your power amplifier. Now use a vocal recording and dial the subwoofer down until it is just past audibility. Then confirm with a record with good bass; you can combine the two if you use ‘Ballad of the Runaway Horse’ by Rob Wasserman and Jennifer Warnes [Duets, Universal]. Now come back a week later and turn it down a notch, then make a cup of tea or coffee, sit back down to your system, and be a bit amazed!

So far, so REL. What the T/7x does is introduce some extra speed and weight to the bass, the sort of performance normally expected from more upmarket models in the line. Weight here is a difficult subject because the Serie T/7x does not make a small speaker seem ‘weightier’, just ‘bigger’ and more importantly ‘better’ across the midrange. I used this in particular with the Rogers LS3/5A SE tested in this issue and this proved to be both an ideal test subject and an ideal candidate for the Serie T/7x. The REL added depth to the sound, but not in the way that it changed the tonality of this well-known speaker system; more that it filled in the bottom end in the same way the SE version fills in the midrange over the original; thoroughly, but paradoxically almost imperceptibly.. The REL was fast enough to pass the Trentemøller test [‘Chameleon’, The Last Resort, Poker Flat] and provided enough reinforcement to make out a few more left-hand piano notes on the Liszt B-minor Piano Sonata played by Martha Argerich’s during her Début Recital {DG], but more importantly on this recording, it also gave that recording the sense of space and gravitas needed to make it something truly outstanding. Switch the sub off and seemingly not a lot happens to the sound, but the sound also collapses and becomes insubstantial. Put it back in and the bass is not overt or oppressive, in fact, it’s almost not there, but the way the T/7x delivers that ‘almost not there’ bass makes all the difference. And, if you compare that bass delivery to previous REL designs under about £1,500, the new T/7x has both more substance and form and less intrusion into the sound of the speakers.

REL Serie T/7x rear panel
The REL controls are easy to navigate

The speed of the Serie T/7x is an outstanding feature. Few do bass depth and bass speed like this subwoofer at anything like the same price, and for that alone it deserves very high praise because that means the REL sub can keep up with fast musical transients played through equally fast and reactive loudspeakers. Couple that with the sort of depth to fill out floorstanders in this category and it’s an exciting addition to the audio canon.

While we aren’t geared up for home cinema here, it must be noted that the REL Serie T/7x is not just for us music lovers. When used as a bass channel instead of bass reinforcement, it has the sharp transient response and directness that makes it so good for two-channel, but with more of an oomph needed to resolve what home cinema does so well. In fact, I’d argue that where previous REL subs at this price point were hi-fi subs that could be used in cinema, the Serie T/7x straddles the divide almost perfectly; home cinema enthusiasts will view this as a powerful sub that can also do two-channel music, where two-channel enthusiasts see this as the audiophile’s friend that can also speak cinema.

In audio settings, a good subwoofer should be seen and not heard like a Victorian schoolchild. REL has consistently been one of the few subwoofer brands to achieve that goal, and the REL Serie T/7x does it better than before. No, it’s not going to out-do a No. 25 or the big 212/SX from the brand, but it does draw heavily from the S/510. While in absolute terms, the S/510 is a better sub all round, the gap has closed significantly. The Serie T/7x at £999 throws down a gauntlet to other subwoofers. It’s the one to beat right now.

 

TECHNICAL SPECIFICATIONS

  • Type: Front-firing active woofer, down-firing passive radiator
  • Inputs: Hi Level Neutrik Speakon, Lo Level single phono, LFE phono
  • Active drive unit: FibreAlloy™, 200mm long-throw, inverted alloy dust cap, steel chassis
  • Passive radiator unit: 254mm long-throw, inverted dust cap
  • Power output: 200w (RMS)
  • Lower frequency response: 31Hz at -6dB
  • Gain control range: 80dB
  • Dimensions (W×H×D): 36 × 32  ×36cm
  • Weight: 17.5kg
  • Price: £999

 

Manufactured by: REL Acoustics

URL: rel.net

Tel: +44(0)1656 768777

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