Pelonis Sound and Acoustics Signature Series User manual

www.chrispelonisspeakers.com
Model42LF
Owner’s Manual
8” Subwoofer w/200W Amp & USB Interface

Model 42LF
The Model 42LF is a low frequency extender designed to work
with the Model 42, giving the perception that the 4” speaker in
the model 42 expanded to a 12” speaker.
Ported Cabinet
With a low frequency response down to 27Hz, the rock solid
enclosure is made from premium MDF material providing
excellent rigidity and dampening characteristics. The ported
design allows for excellent low frequency extension that is
produced by the 8” subwoofer.
Active External Electronics
Keeping sensitive electronics out of the vibrating, magnetic
eld of a speaker enclosure has become something of a lost
art. Additionally, running audio cables parallel to power cables
is undesirable and we go as far as possible to eliminate this
potential problem.
The single rack space power unit delivers an ultra-at frequency
response, extremely low noise oor, and no listener fatigue.
It houses a 200 watt class-D amplier using true analog
implementation operating more in the form of a Class-AB
amplier. The carefully designed low pass lter was specically
tailored to the natural low frequency roll off in the Model 42,
paring them seamlessly.
Headroom and Gain
Hearing the full dynamic range of your material is crucial, with
more than 20dB of headroom, clipping is virtually eliminated.
There are no limiters in the signal chain. Consequently, Pelonis
speakers may play at a lower volume than those from other
manufacturers, but that can be easily changed. The CP Control
DSP software controller allows for an additional boost of 6dB,
making it possible to match the audio level with other sets of
speakers.

Connecting the Power Unit
Before making or changing any connections, always turn the
power switch to the down or off position. After all connection
have been made, turn the switch back on. The blue LED
indicates the system is ready to play.
The power unit is connected to the speakers using high quality
speaker wire. Oxygen free 18 AWG wire is included to make
sure you can use your new system right out of the box, but can
be replaced with higher quality cables to improve the system’s
performance. Each speaker does require separate high and low
frequency speaker wire runs.
Care should be taken when connecting speaker wire to
terminals as to not allow stray wire to touch other wire or
terminals.
The left and right source outputs are split with a Y-cable, one
split going to the model 42LF input while the other goes to the
Model 42. Use either XLR or 1/4” jacks. Both Model 42LF input
jacks must be wired to ensure proper balance. Please note that
the outputs need to be wired using the right Red “+” terminal
and the left Black “-“ terminal (when viewed from the rear), as
indicated on the silk screen diagram on the back panel of the
Model 42LF module.
Setting the Input Sensitivity
Set the input sensitivity button according to the source device.
The general guideline is -10dbv for PCs, MP3 players, etc. and
+4 for professional sources like mixing consoles. Both inputs
are balanced and can be further used to maintain consistent
levels between differing sets of speakers. The -10dbv input
does allow for unbalanced connections.
DSP Control
The USB jack on the front of the power unit provides a direct
interface to your computer, allowing you to control the DSP
features. Custom settings are then saved in the power unit
after changes have been made, no longer requiring the
USB cable to remain connected for custom settings to be
maintained.
SPECIFICATIONS
System Type
8” Woofer
Frequency Response
28Hz-96Hz (±3dB)
System Sensitivity
81dB (159mV input, 2.83V output @ 1m,
70Hz LF output, -10dBV input sensitivity)
Rated Maximum SPL
105dB (Peak SPL, 2.0V input @ 1m, -10dBV input sensitivity)
Dispersion
360° (-6dB across frequency range)
THD
1.88% (2.83V @ 1m, 70Hz output, 50Hz-100Hz)
Woofer
8” (200mm) high-excursion paper pulp cone
Woofer Nominal Impedance
8 Ohms

Model 42LF

www.chrispelonisspeakers.com
Pelonis Sound and Acoustics, Inc.
Santa Barbara, CA.
Phone: [phone]
email: [email protected]