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) |