Applied Research & Technology • 215 Tremont St., Rochester, NY 14608 • USA • 585.436.2720 tel • 585.436.3942 fax • www.artproaudio.com
Features and specifications subject to change without notice. ©2005 Applied Research and Technology ART-HDSERIES-Specs-0704
Celebrating Twenty Years of Audio.
Features:
✔
Accurate Constant Q Precision
Center Frequencies
✔
Exceptional Frequency Response
at 20-20KHz, +/-0.5dB
✔
Equipped with XLR, 1/4” Phone
and Euroblock Barrier Strip
Connectors
✔
Independent Variable Hi
and Low Pass Filtering
deliver optimum control
✔
Automatic Bypass Relays provided
in case power is lost to the unit
✔
Extremely Quiet Operation housed
inside a Rugged Chassis Design
Specifications:
Type / Accuracy
Constant Q, 3% Center Frequency
Travel
20mm (Positive Center Detent)
Range
+/-6dB or +/-12dB (Selectable)
Overall Gain Range
Off to +6dB (Unbal. out) Sliders Centered
Off to +12dB (Bal. out) Sliders Centered
INPUTS
Type
Active Balanced/Unbalanced
Connectors
3-Pin XLR, 1/4” TRS (Bal.), Euroblock
Impedance
24k Ohms (Balanced); 12k Ohms (Unbal.)
Maximum Level
+22dBm (Level Control at Center)
OUTPUTS
Type
Active Balanced / Unbalanced
Connectors
3-Pin XLR, 1/4” TRS (Balanced),
Euroblock
Impedance
Typical <150 Ohms
Maximum Level
+22dBm (Balanced) (600 Ohm load)
+16dBm (Unbalanced) (2k Ohm load)
RFI filters
Yes
Bypass Switches
Yes, Passive
Overload LED Threshold
6 dB below clipping, (all filters set to flat)
High Pass Filter
10-250Hz, 12dB/Oct
Low Pass Filter
3k-40kHz, 12dB/Oct
Frequency Response
20-20kHz, +/-0.5dB
THD + Noise
less than 0.01% (20Hz-20KHz, 0dBu)
IM Distortion (SMPTE)
0.005%
Signal to Noise Ratio
greater than 98dB, Ref: 0dBu, (Bal.)
HD215 greater than 95dB, Ref: 0dBu,
(Bal.) HD131/231 20Hz - 20KHz, unweighted.
Headroom
+22dB, Ref, 0dBu, (Balanced)
(+/-6dB and +/-12dB range)
Dynamic Range
greater than 120dB, (Bal.) HD215
greater than 117dB, (Bal.) HD131/231
Channel Separation
greater than 60dB
Common Mode Rejection 50dB typical
POWER
Line Voltage
95-125VAC, 50/60Hz, 190-250VAC, 50/60 Hz
Input AC Power
9 Watts (HD131 / HD215),
14Watts (HD231), typical
Construction
All Steel Chassis, Aluminum Front Panel
Sizes
1.75”H x 19”W x 7.0”D (HD131/ HD215)
4.45cm x 48.3cm x 17.8cm
3.5”H x 19”W x 7.0”D (HD231)
8.9cm x 48.3cm x 17.8cm
Weight
7.5 Ibs (3.4 kg). (HD131 / HD215)
12 Ibs (5.4 kg). (HD231
High Definition Graphic Equalizers
Applications:
Live Sound Systems/PA, Permanent or Fixed Installations, Church, Club and Practice PA Systems, DJ Sound Systems,
Home and Project Recording Systems, and Monitor Systems.
