Speedlink Gravity Blaster

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Speedlink Gravity Blaster 2.1


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The meaty torso of this distended metaphor consists of two 6.5w satellites each with a mid and treble cone, and one 20w sub-woofer pushing out the low-end bass business. Each satellite connects to the sub via a colour-coded single-channel cable. The sub is then in turn connected to your chosen source using a RCA stereo-to-3.5mm jack cable. The actual inputs on the sub are the standard red and white stereo sockets. Meaning you’re not limited to 3.5mm outputs as an audio source. That said, a 3.5mm-to-6.3mm jackplug/TRS adaptor and a straight RCA-to-RCA lead would be useful additions to the package and worth the extra couple of quid it would cost to include.


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An attached “remote control” has a quick-mute button, volume control and 3.5mm headphone socket. Although this is a good concept in principle, since your input will invariably have its own adjustable volume control it feels a little redundant. Each extra device between source and speaker is something more to go wrong and reduce sound quality. The mute button also missed a few clicks and didn’t depress properly more than once. Considering it’s likely to be used in an emergency situation when you need a brisk and decisive culling of noise, it’s a bit disconcerting to know it may not do the job when called upon.


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On the front of the sub-woofer you’ll find a nice big bass dial and power button. So the above muting problem is offset by the ease of killing power should the need arise. Being able to set the bass output separate from the overall volume is very useful, too. You may well find certain songs require fine-tuning to bring out or tone down the bass. Bafflingly, the bass dial doesn’t seem to have a mark against which to gauge its position. There’s the usual attenuated triangle, but no notch to measure it against. Although this isn’t a major issue it’s a surprising oversight.

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Last modified: February 15, 2011

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