Dbx 120xp User Manual

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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 FREQUENCY
CROSSOVER
BYPASS
POWER
36Hz-56Hz
26Hz-36Hz
SUBHARMONICS
LF BOOST
SUBWOOFER
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
MIN
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 (801) 568-7660
Fax (801) 568-7662
IntÕl Fax (219) 462-4596
customer@dbxpro.com
http://www.dbxpro.com