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Emphaser EBR112SPL-X4 Manual

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ADJUSTMENT OF CROSSOVER
The SPL-X4 ported subwoofer systems need a lowpass filtered sig-
nal to perform best. Thus you have to select the low-pass crossover
function of the amplifier channels that drive your sub, or activate
the DSP based crossover of your headunit driving the sub line-out.
A filter slope steepness of min. 12dB/oct. up to 24dB/oct. is recom-
mended. For normal compact type cars an 18dB/oct. lowpass for
the sub channel(s) in combination with 12dB/oct. highpass filtered
channels feeding the satellite speakers will usually render best
phase match on the x-over frequency.
The lowpass and highpass cut off / cut in frequency points should
be set to approx. 80 Hz, in order to test the best connection polarity
of your subwoofer.
Phase optimized connection polarity: The correct and best sound-
ing polarity for your subwoofer needs to be determined empirically
„by ear“, due to the different sound wave path lenghts by the com-
ponent system mounted to the front doors and the sub playing in
the trunk. This is carried out by connecting the speaker wire to the
plug of the subwoofer either correctly “in-phase” or with reversed
connection polarity – while the resulting sound needs to be judged
sitting on the drivers seat and with the trunk closed. You can further
improve the phase match of the sub to the satellite speakers, if
your amp features a phase shift control function, or if the headunit
deploys a DSP offering time alignment of sat/sub channels.
Once you have found the correct or better sounding connection
polarity of your sub, you can re-mount the top of the terminal
plug.
The final adjustments now center around the lowpass crossover
frequency point and input level gain of the amp channels driving
the subwoofer. In general, the lowpass crossover frequency should
be set in between 65 to 90 Hz.
Note: Selecting a very low crossover frequency (<70Hz) will give
you soft and infra-bass heavy sound, whereas setting the x-over
frequency too high tends to let you end up with an "over-booming"
sound character lacking in low end extension.
Congratulations on your purchase of this EMPHASER SPL-X4 ported
trunk box subwoofer system.
Before you put this subwoofer in your trunk and fire it up, please
read the manual and all operating and adjustment instructions
given, to obtain best possible sound quality and full performance.
This SPL-X4 trunk box subwoofer model follows the ported enclosure
tuning principle, with some special features implemented in the con-
struction as listed below:
TECHNICAL KEY FEATURES
■ Loaded with E12SPL-X4 / E15SPL-X4 subwoofer
■ Optimized for >130dB SPL output
■ Cabinet made of solid MDF wood
■ Large cross section slot port design
■ EMPHASER quick-connect terminal
■ PU-foam inner damping for best sonics
BOX LOCATION & GENERAL INFO
The SPL-X4 trunk box sub models are designed and acoustically
optimized for deployment in the trunk of hatchback or sedan type
vehicles.
The EMPHASER „Safety Terminal“ provides straightforward and
simple connection of this subwoofer model, or a quick removal
of it when necessary. Accidential reverse polarity connections are
avoided by the special shape of the plug and the receptor cup,
that fit together like a key in a lock. The slot port enclosure design
enables the SPL-X4 woofer to perform as intended, i.e. sustain-
ing exceptionally high undistorted and port noise free bass output
levels.
CONNECTION TO THE AMP
Remove the top part of the speaker plug. Connect the speaker wires
coming from the amp to the terminal binding posts located inside
the main terminal housing. Do not remount the top of the plug yet,
as the correct connection polarity of the speaker cable connecting
the sub to the amp must be determined first, to obtain in-phase
response between subwoofer and satellite speakers.
TECHNICAL SPECIFICATIONS EBR112SPL-X4 EBR115SPL-X4
Peak input power: 5 kW 5 kW
Continuous input power: 2500 W 2500 W
Sensitivity (1W/1m): 89 dB 90 dB
Frequency response (-3dB in car): 40 – 85 Hz 35 – 85 Hz
Nominal impedance: 2 x 2 Ohms 2 x 2 Ohms
Dimensions (WxDxH mm): 582 x 480 x 402 675 x 513 x 467
– Technical construction and specifications subject to changes without notice –
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