311
STEREO 2-WAY CROSSOVER w/ SUBWOOFER OUT
The Model 311 Crossover may be used as a
s t e reo 2–way crossover network, and has the
addition of a subwoofer output for low-end
f requency re i n f o rcement. It employs 24dB/
octave state-variable, fourth-ord e r, LinkwitzRiley filters that guarantee properly phased
outputs at all frequencies, which is mandatory
for the proper acoustic summing of common
signals from adjacent drivers in the crossover
region.
D i m e n s i o n s : 5.5”d x 19.0”w x 1.75”h
We i g h t : 4 . 85 lbs. (2.2 kg)
Input Connections: XLR, 1/4” TRS, balanced
Output Connections: 1 /4” TS, unbalanced
Input Impedance: 100K Ohms
Output Impedance: 220 Ohms
Maximum Input Le v e l : +21dBu
Maximum Output Le v e l : +21dBu
C MRR > 75dB (typical @ 1kHz)
Frequency Response: 10Hz to 40kHz, +/–.5dB
Signal to Noise Ratio: > 95dB, Ref: 0dBu
Dynamic Range: > 114dB
To tal Harmonic Distortion (THD ) : < 0 . 01% (20Hz-20kHz, 0dBu)
C rossover Filter Ty p e : Fo u r t h - o rder Linkwitz-Riley
C rossover Frequency Range: 2 50Hz to 6kHz
Subwoofer Filter Ty p e : Two-pole Butterworth, 12dB/ o c tave
Subwoofer Frequency Range: 50Hz to 250Hz
Power Require m e n t s : U S A : 110 –125V AC / 50 - 60hz / 15 W
Each channel features independent high and
low output level controls and a crossover
frequency rotary control, which covers a wide
range (250hz to 6khz). All three outputs have
a 30 cycle low cut switch to eliminate low-end
rumble. The subwoofer features an independe n t
o u t p u t level & rotary control for frequencies in
the 50hz to 250hz range.
20Hz to 20kHz, unweighted
2 4 d B/ o c tave, sta t e - v a r i a b l e
Export units configured for country
of destination
311 FEATURES:
✔ Stereo 2–Way Crossover
✔ Low–End, Subwoofer
Output
✔ Linkwitz–Riley filters
✔ Independent high
and low output level
controls
✔ Phase Switches
✔ XLR and
Connectors
1
✔
/4” Output Connections
APPLICATIONS:
1
/4” Input
✔ Live Sound Systems/PA
✔ Permanent Installations
✔ Church, Club, Practice
PA systems
✔ Bi-Amped Bass and
Keyboard Rigs
F rom the innovative minds at ART.
F rom the innovative minds at ART.
Applied Research & Te c h n o l o g y • 215 Tre m o n t St., Rochester, NY 14608 • USA • 585.436.2720 tel • 585.436.3942 fax • w w w. a rt p ro a u d i o . c o m
Features and specifications subject to change without notice. ©2002 Applied Research and Te ch n o l o g y ART- 3 11 - S p e c s - 090 2
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