dbx 231s Dual Channel Equalizer
Take full control of your audio system with the dbx 231s Dual Channel Equalizer, a professional-grade signal processing solution designed to deliver precise sound shaping and exceptional clarity. Engineered by dbx, a globally respected brand in professional audio technology, the dbx 231s Dual Channel Equalizer is a trusted choice for sound engineers, AV integrators, and audio enthusiasts who demand reliable and accurate equalization.
The dbx 231s Dual Channel Equalizer features dual channels with 31 bands per channel, offering detailed frequency control across the entire audio spectrum. This allows users to fine-tune sound systems with extreme precision, correcting acoustic issues, eliminating feedback, and enhancing overall sound quality. Whether you are working in live sound environments, recording studios, installed sound systems, or DJ setups, the dbx 231s Dual Channel Equalizer ensures your audio is perfectly balanced and tailored to your space.
One of the key advantages of the dbx 231s Dual Channel Equalizer is its constant-Q filter design, which ensures that each frequency band maintains a consistent bandwidth regardless of boost or cut levels. This results in more accurate and musical adjustments compared to traditional equalizers. Combined with its high-quality components, the dbx 231s Dual Channel Equalizer delivers clean, transparent sound with minimal noise and distortion.
The dbx 231s Dual Channel Equalizer offers a ±12 dB input gain range, allowing you to match signal levels easily and maintain optimal performance across your audio chain. Each frequency band can be adjusted with precision sliders, giving users tactile control over their sound. The clear and intuitive front panel layout makes it easy to identify and adjust specific frequencies, even in low-light environments.
The dbx 231s Dual Channel Equalizer also includes essential features for professional use, such as switchable boost/cut ranges (±6 dB or ±12 dB), allowing you to choose between subtle adjustments or more aggressive equalization. Additionally, the unit is equipped with a low-cut (high-pass) filter, which helps remove unwanted low-frequency noise such as rumble and handling noise, improving overall clarity.
For system protection and troubleshooting, the dbx 231s Dual Channel Equalizer includes bypass switches for each channel. This allows users to quickly compare processed and unprocessed signals or isolate issues within the signal chain. The unit also features balanced XLR and TRS inputs and outputs, ensuring compatibility with a wide range of professional audio equipment.
Durability and reliability are hallmarks of the dbx 231s Dual Channel Equalizer design. Its rugged 2U rack-mountable chassis is built to withstand the demands of touring, live events, and permanent installations. The robust construction ensures long-term performance, making it a dependable component in any professional audio setup.
The dbx 231s Dual Channel Equalizer is widely used in live sound reinforcement, where precise equalization is critical for achieving clear vocals and balanced instruments. It is also ideal for installed sound systems in venues such as auditoriums, houses of worship, conference rooms, and clubs, where it helps optimize sound for specific room acoustics. Additionally, it is a valuable tool in recording studios for shaping audio during mixing and mastering processes.
In summary, the dbx 231s Dual Channel Equalizer is a powerful and versatile audio processing tool that delivers precision, clarity, and reliability. With its advanced features, intuitive controls, and professional-grade performance, it is an essential addition to any audio system. Whether you are fine-tuning a live performance or optimizing a permanent installation, the dbx 231s Dual Channel Equalizer ensures your sound is always at its best.
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Features
- Dual 31-band, 1/3-octave Constant Q frequency bands
- Switchable boost/cut ranges of ±6 or ±12 dB
- Front panel bypass switch
- ±12 dB input gain range
- 4-segment LED ladders for monitoring output levels
- XLR and TRS Inpts and Outputs
- Frequency Response of <10Hz to >50kHz
- Dynamic range of greater than 108dB
Specifications
| Category | Specification |
|---|---|
| Product Type | Dual Channel Graphic Equalizer |
Input Specifications
| Parameter | Specification |
|---|---|
| Input Connectors | 1/4″ TRS, female XLR (pin 2 hot) |
| Input Type | Electronically balanced/unbalanced, RF filtered |
| Input Impedance | Balanced: 40 kΩ Unbalanced: 20 kΩ |
| Maximum Input Level | > +21 dBu (balanced/unbalanced) |
| CMRR | > 40 dB (typically > 55 dB @ 1 kHz) |
Output Specifications
| Parameter | Specification |
|---|---|
| Output Connectors | 1/4″ TRS, male XLR (pin 2 hot) |
| Output Type | Impedance-balanced/unbalanced, RF filtered |
| Output Impedance | Balanced: 100 Ω Unbalanced: 50 Ω |
| Maximum Output Level | > +21 dBu (≥ 2 kΩ load) > +18 dBm (600 Ω load) |
Audio Performance
| Parameter | Specification |
|---|---|
| Bandwidth | 20 Hz – 20 kHz (+0.5 / -1 dB) |
| Frequency Response | < 10 Hz – > 50 kHz (+0.5 / -3 dB) |
| Dynamic Range | > 112 dB |
| Signal-to-Noise Ratio | > 95 dB |
| THD + Noise | < 0.003% |
| Interchannel Crosstalk | < -90 dB (20 Hz – 20 kHz) |
Controls & Functions
| Parameter | Specification |
|---|---|
| Bypass Switch | Bypasses graphic EQ section |
| Low-Cut Filter | 50 Hz, 12 dB/octave high-pass filter |
| Range Switch | Selectable ±6 dB or ±12 dB boost/cut |
Electrical Specifications
| Parameter | Specification |
|---|---|
| Operating Voltage | 100 – 240 VAC, 50/60 Hz |
| Power Consumption | 15 W |
| Power Connector | IEC receptacle |
Physical Specifications
| Parameter | Specification |
|---|---|
| Dimensions (H × D × W) | 3.5″ × 6″ × 19″ (8.9 × 15.24 × 48.26 cm) |
| Unit Weight | 2.81 kg (6.2 lbs) |
| Shipping Weight | 3.58 kg (7.9 lbs) |
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