With a lineage extending back to the revered 12 and 20 Series graphic equalizers, the dbx® 231 easily lives up to the dbx reputation at a price point which can find a home in the tightest of budgets. Besides including two 31-band channels of 1/3-octave equalization, the 231 also offers ±6 or ±12 dB boost/cut range; XLR, 20mm faders and 1/4" inputs; nonconductive nylon sliders; and an intuitive user interface with comprehensive output and gain reduction metering. As always, the inevitable result of our meticulous attention to detail and top-quality componentry is exceptional sound, performance, and reliability.
The 2-Series represents a major step forward in the performance of entry-level graphic equalizers. From its amazing 10Hz to 50kHz frequency response, to its 108dB dynamic range and internal toroidal transformer, the 2-Series offers out of this world specifications with a down to earth price point. Sure to find a home in the studio, on tour and with installed sound venues, the 2-Series is destined to take its rightful place in the lineage of great dbx® signal processors that are the Professional's Choice™. With such affordable quality, there's no longer any excuse for compromising your sound.
Features
- Two 31-band, 1/3-octave Constant Q frequency bands
- Switchable boost/cut ranges of ±6 or ±12 dB
- 12dB per octave 50Hz low-cut filter
- Front panel bypass switch
- ±12 dB input gain range
- 4-segment LED ladders for monitoring output levels
- XLR and TRS Inpts and Outputs
- Internal Toroidal Transformer
- Frequency Repsonse of <10Hz to >50kHz
- Dynamic range of greater than 108d
Documentation
Specifications
| Input Connectors | 1/4" TRS, female XLR (pin 2 hot) |
| Input Type | Electronically balanced/unbalanced, RF filtered |
| Input Impedance | Balanced 40k ohm, unbalanced 20k ohm |
| Max Input | >+21dBu balanced or unbalanced |
| CMRR | >40dB, typically >55dB at 1kHz |
| Output Connectors | 1/4" TRS, male XLR (pin 2 hot) |
| Output Type | Impedance-balanced/unbalanced, RF filtered |
| Output Impedance | Balanced 100 ohm, unbalanced 50 ohm |
| Max Output | >+21dBu balanced/unbalanced into 2k ohm or greater; >+18dBm balanced/unbalanced (into 600 ohm) |
| Bandwidth | 20Hz to 20kHz, +0.5/-1dB |
| Frequency Response | <10Hz to >50kHz, +0.5/-3dB |
| Dynamic Range | 108dB |
| Signal to Noise Ratio | 90dB |
| THD+Noise | <0.004% |
| Interchannel Crosstalk | <-80dB, 20Hz to 20kHz |
| Bypass Switch | Bypasses the graphic equalizer section in the signal path |
| Low cut Switch | Activates the 50Hz 12dB/octave high-pass filter |
| Range Switch | Selects either +/- 6dB or +/-12dB slider boost/cut range |
| Operating Voltage | 100VAC 50/60Hz; 120VAC 60Hz; 230VAC 50/60Hz |
| Power Consumption | 15W |
| Power Connector | IEC receptacle |
