REL Acoustics Q Series, Руководство по эксплуатации

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REL Acoustics ‘Q’ range User manual
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Note: As the Q-series crossover adjustment uses a single variable control, use the closest
correlating position to any of the crossover settings noted above for ST series models.
Ultimately, as with the click stops of the ST range, simply bring gain and then crossover up
until excess output is achieved, then back down a soft-click or two.
Hint: There is a tendency among audiophiles to set the crossover point too high and the gain
too low when first learning how to integrate a REL with the system, the fear being one of
overwhelming the main speakers with bass. But in doing so, the resulting set-up will be
lacking in bass depth and dynamics. The proper crossover point and gain setting will
increase overall dynamics, allow for extended bass frequencies, and improve soundstage
properties.
Note, gain must be adjusted in conjunction with crossover changes. In general, when
selecting a lower crossover point, more gain may need to be applied.
Theatre and Film Applications: For Dolby Digital AC-3

or other 5.1 theatre systems, once the
standard set-up for two-channel outlined above is complete, the LFE output from the processor or
receiver should be connected to the low-level input and appropriate gain adjustments made. It may
be necessary to take the crossover out of the low-level input using the “mode” switch if extra upper
bass output is called for. Keep phase consistent with what was selected during high-level set-up by
simply choosing the corresponding setting (1 = 2, 3 = 4). For this configuration, you must set the
processor to the “large” or “full range” setting for the left and right speakers in order for the REL to
receive the bass signal via the high-level cable. In this configuration, the REL provides support for
both the left and right speakers for two-channel listening, and support for the LFE when movies are
playing. Most processors will allow you to defeat the subwoofer output when listening in the two-
channel mode. The effect of this set-up is one of greatly increased dynamics in the mid-bass range,
no bass bloat, and a greater degree of space and timing from the Foley effects. For an even greater
sense of space and impact, a second woofer connected in parallel to the centre channel will prove to
be a dramatic improvement as well. And if that is not enough fun, a rear sub, both to support the rear
channel speakers as well as to evenly distribute LFE through the room, truly completes the full-range
sonic picture for state-of-the-art film reproduction. A comprehensive set-up paper for home theatre
will be coming very soon.
Other Tips: Generally speaking, do not use the supplied spikes. RELs work on the principle of the
driver in a high-pressure zone relative to the floor. Spiking the REL will decouple the woofer from the
floor, which will lean out the bass response. If the floor is an older, very “springy” floor, spikes can be
useful in reducing the influence of the REL on the floor. But better yet, a heavy stone slab placed
under the REL will work better. Even if you intend to use the spikes, do NOT insert them until
completion of the set-up process. After which, subtle adjustments to crossover and gain may be
necessary.