Back Panel Overview - JL Audio W7 Owner's Manual

REcOMMENDED cONTINUOUS (RMS) POWER RANGE fOR ONE SUBWOOfER DRIVER:
2 5 0 W 5 0 0 W
Amplifier Recommendation:
JL Audio 1000/1v2:
These settings are intended
as a "baseline" for tuning your
system. Depending on your
vehicle and your preferences,
some variation in the crossover
and bass control settings may
be necessary for optimum
performance. (See settings
on page 10 for 500/1.)
= position of knob
= position of switch
= switch with two possible positions
= setting will vary (see sidebar)
8
7 5 0 W 1 0 0 0 W
Bass EQ:
Generally not necessary in W7 applications (we recommend defeating it by
switching the "Bass EQ" switch to "Off"). May be used with Remote Bass
Control to provide some user controllable broad bass boost. When used in this
manner, set "Q" to "1.1", set "Center Freq." to "45" Hz, "Boost" is defeated by
connection of Remote Bass Control.
Infrasonic Filter:
Turn "Off" for Sealed Enclosure.
Turn "On" for Ported Enclosure and
set the knob to "25" Hz.
Remote Bass Port: Amp Low-Pass Filter:
Permits connection of an Set "Mode/Slope" switch to "24dB".
optional remote bass boost Set "Filter Freq. (Hz)" knob to "85".
controller (RBC-1), giving you Lower settings are likely to result in a
control over the boost of the poor transition between the upper
parametric EQ from the front response of the W7 and the lower
of the vehicle. The RBC-1 response of the mid-bass speakers.
controller is sold separately.
12W7-3
free Air Resonance (fs): 27.2 Hz
Electrical "Q" (Qes): 0.514
Mechanical "Q" (Qms): 7.807
Total Speaker "Q" (Qts): 0.482
Equivalent compliance (Vas): 2.33 cu. ft. (66.0 ltrs)
One-Way, Linear Excursion (Xmax)*: 1.15 in. (29 mm)
Thermal Power Handling (Pt): 1000 Watts Continuous
Reference Efficiency (no): 0.249 %
Efficiency (SPL @ 1W/1m): 86.2 dB
Dc Resistance (Re): 2.47Ω
Effective Piston Area (Sd): 84 sq. in. (0.0542 sq. m)
Nominal Impedance (Znom): 3Ω
* Xmax specifications are derived via one-way voice coil overhang method with
no correction factors applied.
2 0 0 0 W 4 0 0 0 W
1000/1v2 (pictured), HD750/1,
500/1v2 or G-MAX
Input Sensitivity Controls:
Proper adjustment of these controls is critical!
For virtually all aftermarket head units,
set "Input Voltage" to "Low".
See "Input Sensitivity Setting Guide"
on pg. 14 for precise setting instructions.
Ampli er Input:
Connect RCA-type
cables from the head
unit (or processor) to
these two jacks.
Use both jacks
(with a Y-adapter
if necessary).
Dual Mono Speaker
Output Connections:
Connect wire directly to "+"
and "–" "Subwoofer Output"
connections and to the W7.
Output Polarity:
Carefully listen to the sub-bass to
mid-bass transition with music that
has strong mid-bass content. Select
the switch position which gives the
smoothest, most natural mid-bass
response. If using multiple 1000/1's
on multiple subwoofers, make sure
this switch is set to the same position
on all ampli ers.