SE-231

Description

The POPE Professional® SE-231 Graphic Equalizer is designed for modern sound reinforcement applications. Smooth band-pass filtering and transparent low-noise circuitry provide virtually distortion free operation. The SE-231 has been designed and engineered to exceed extremely high standards for design specification and audio performance. This flagship EQ is precise and flexible, with the quality components and innovative features necessary for top-level professional audio performance. The SE-231 filter sets utilize precision 1% resistors and 2% capacitors. The active gain elements used throughout are all ultra low noise, and low distortion, resulting in a total dynamic range specification of >=123dB, thereby making these equalizers perfect for all applications where precision processing and silent operation are of the utmost priority. Rugged construction and solid audio performance make these equalizers well suited for touring live-sound systems as well as for fixed installations.

 

Features

• 40 Volt internal circuitry and line driving capability
• High and Low frequency "Trim" controls
• 10 Segment LED level meters with "Peak-Hold" and clipping
• Constant Q design with interleaved filter banks
• High precision filters with 2% film capacitors, 1% resistors
• 45mm metal shaft slide potentiometers
• Toroidal power transformer
• Greater than 123dB dynamic range
• Ultra low noise and high output
• Built-in RFI suppression
• Grounded center-tapped slide potentiometers
• Automatic relay bypass if power is lost
• Euroblock detachable barrier strips
• XLR balanced inputs and outputs

 

Specifications

Model SE-231
Article No. #10004
Class Graphic Equalizer
Input
Connectors Female XLR (pin 2 hot) & 1/4" TRS and barrier terminal strip
Type Electronically balanced/unbalanced, RF filtered
Impedance Balanced 40k ohm, unbalanced 20k ohm
Max Input Level >+21dBu balanced or unbalanced
CMRR >40dB, typically >55dB at 1kHz
Outputs
Connectors 1/4" TRS, male XLR and barrier terminal strip
Type Impedance-balanaced/unbalanced, RF filtered
Impedance Balanced 200 ohm, unbalanced 100 ohm
Max Output Level >+21dBu balanced/unbalanced into 2k or greater
>+20dBm balanced/unbalanced (into 600)
Function Switches
NR Activates Noise Reduction
EQ Bypass Bypasses the Graphic Equalizer
Low Cut (recessed) Activates the 40Hz 18dB/octave Bessel high-pass filter
Range (recessed) Selects either +/- 6dB or +/-15dB slider boost/cut range
Indicators
Output Level Meter 4-LED bar graph (Green, Green, Yellow, Red)
at -10, 0, +10, and +18dBu
GainReductionMeter 4-LED bar graph (all Red) at 0, 3, 6, and 10dB
NR Active Yellow LED
EQ Bypass Red LED
Clip Red LED
Low Cut Active Red LED
+/-6dB range Yellow LED
+/-12dB range Red LED
System Performance
Bandwidth 20Hz to 20kHz (+/-0.5dB)
Frequency Response 50kHz, +0.5/-3dB
Noise Reduction In (+/-6 and +/-12dB range)
Signal-to-Noise >102dB, unweighted, ref: +4dBu,
22kHz measurement bandwidth
Dynamic Range >120dB, unweighted
Noise Reduction Out (+/-6dB range)
Signal-to-Noise >94dB, unweighted, ref: +4dBu,
22kHz measurment bandwidth
Dynamic Range >112dB, unweighted
Noise Reduction Out (+/-12dB range)
Signal-to-Noise >90dB, unweighted, ref: +4dBu,
22kHz measurement bandwidth
Dynamic Range >108dB, unweighted
THD + Noise <0.04%, 0.02% typical at +4dBu, 1kHz
Inter channel Crosstalk <-80dB, 20Hz to 20kHz
Noise Reduction Up to 20dB of dynamic broadband
noise reduction
Power Supply
Operating Voltage 200 - 240V AC @ 50Hz
Power consumption 23W
General
Dimensions (H x W x D) 133.35 mm x 482.6 mm x 200.6 mm
Weight 4.8 Kg (10.6 lbs)