User Guide

The Subharmonic Synthesizer shall have a frequency
response of 25Hz-20kHz ±0.5dB and 15Hz to 90kHz +0,
-3dB. The unit shall have 1/4" phone jack electronically
balanced inputs with an impedance of not less than
18.5k½ and a maximum input level of not less than
+20dBu for each of two channels. The unit shall have
1/4" phone jack outputs with an impedance of not more
than 47½ and the maximum output level shall be not less
than +20dBu into 600½. The unit shall have a single
1/4" phone jack output for signal to be sent to a sub-
woofer. The Subharmonic Synthesizer shall have a total
harmonic distortion level (no synthesis) of 0.05% and an
intermodulation distortion level (IHF or SMPTE, no syn-
thesis) of 0.05%. The equivalent input noise shall be no
more than -93dBu and the output noise (either output)
shall be no more than -88dBu with controls set to maxi-
mum. The unit shall be equipped with the following
front-panel controls: 26-36Hz and 36-56Hz Band
Synthesis Level, Subharmonics, Low Frequency Select,
Crossover in/out. The unit shall have Crossover,
Synthesis, Power and Bypass indicators. The dynamic
range shall be not less than 113dB and the synthesis fre-
quency range shall be 26-56Hz (from 54-110Hz input
signal). The crossover shall be 12dB/octave high pass (-
3dB @ 80Hz or 120Hz); 6dB/octave derived low pass,
phase-coherent (unity-sum). The power requirement
shall be 96-125VAC; 50/60Hz. The size of the unit shall
be 1.75"x19"x6.2" (4.5cm x 48.3cm x 15.75cm) with a
net weight of 4.75 lbs (2.2kg) and a shipping weight of 8
lbs (3.7kg.) The Subharmonic Synthesizer shall be a dbx
120XP.
SUBHARMONIC SYNTHESIZER
120XP
Frequency Response:
(no synthesis, full-range mode) 25Hz-20kHz±0.5dB,
15Hz-90kHz +0, -3dB
Input Impedance: Balanced or Unbalanced ³18.5k½
Maximum Input Level: +20dBu
Output Impedance: 47½
Maximum Output Level: +20dBu into 600½
Connector Type: 1/4" TRS Phone Jack
THD: (no synthesis, either output) 0.05%
Intermodulation Distortion:
(no synthesis, either output) (IMD) IHF or SMPTE 0.05%
Equivalent Input Noise:
-93dBu, unweighted
Output noise:
(full range output) -88dBu, controls@max.
Front Panel Controls:
26-36Hz and 36-56Hz
Band Synthesis Level,
Subharmonics, Low
Frequency Boost,
Subwoofer Output
Rear Panel Controls:
Crossover Frequency
Select, Crossover in/out
Indicators: Power, Crossover,
Bypass
Metering: Synthesis activity (3
LEDs per band)
Dynamic Range: 113dB
Synthesis Frequency Range:
26-56Hz (from 54-
110Hz input signal)
Crossover:
12dB/octave high pass
(-3dB @ 80 Hz or
120Hz); 6dB/octave
derived low pass.
Phase-coherent (unity-
sum)
Power Requirements:
96-125VAC; 50/60Hz
DO Version,
180-250VAC; 50/60Hz
EU Version
Dimensions:
1.75"x19"x6.2"
(4.5cm x 48.3cm x
15.75cm)
Rack Space:
1 Rack Unit
Weight: Net/Shipping:
4.75 lbs/8 lbs
2.2kg/3.7kg
SYNTHESIZED FREQUENCYCROSSOVERBYPASSPOWER
36Hz-56Hz26Hz-36HzSUBHARMONICSLF BOOSTSUBWOOFER
MAXMIN MAXMIN MAXMIN MAXMIN MAXMIN
120XP
SUBHARMONIC
SYNTHESIZER
dbx engineers are constantly working to improve the quality of our products.
Specifications are, therefore subject to change without notice.
®
FOR MORE INFORMATION CONTACT:
dbx Professional Products
8760 S. Sandy Pkwy.
Sandy, Utah 84070
Phone [phone]
Fax [phone]
IntÕl Fax [phone]
[e-mail]
http://www.dbxpro.com