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With the Series 2, dbx aims for a rare balance: maintaining a "field" approach inherited from the brand's professional graphic equalizers while simplifying use and integration into various setups. The goal is clear: to offer a graphic equalizer that remains robust, readable, and quick to adjust without sacrificing the fundamentals expected in sound reinforcement and control rooms, such as good dynamic range, wide frequency response, and full balanced connectivity. This philosophy is also reflected in the power supply, featuring an integrated power supply and a toroidal transformer, designed for stability and reliability in racks.
This dbx graphic equalizer is intended for anyone who needs to quickly correct a sound system or monitors without resorting to a more complex parametric equalizer. In live sound, it becomes a direct tool to tame resonance, compensate for difficult acoustics, or secure wedge mixes against feedback. In fixed installations (multipurpose rooms, places of worship, bars, small stages), its two channels allow separate treatment, for example, of a main PA system and a secondary zone, or left/right.
In studio and home studio environments, it finds its place as a corrective equalizer on a bus, monitoring, or external processing: you adjust the curve visually, band by band, with immediate feedback on your decisions. The switchable gain ranges help maintain a "light mastering" logic (+/-6 dB) or to apply more aggressive correction (+/-12 dB) when acoustic issues demand it.
The 2 x 31 bands in 1/3 octave configuration is an essential standard when fast work on a sound system is required. The constant Q maintains a consistent bandwidth when boosting or cutting, making adjustments more predictable and avoiding the impression of a "widening curve" when pushing a band. The result: you sculpt a more controlled correction, especially useful in the midrange where resonance and harshness perception is most sensitive.
The per-band range switch (+/-6 dB or +/-12 dB) allows adapting the device to your context. On front-of-house or a bus, the "short" range is often preferred for fine adjustments. On monitors, room correction, or troubleshooting, the "long" range provides the necessary headroom to regain control quickly.
The front panel bypass switch is essential for instantly comparing the processed signal with the original signal and validating that the correction truly improves the sound. The 4-segment LED output level indicator facilitates level monitoring, useful to avoid surprises during a scene change, a louder source, or a correction that boosts certain bands. The 20 mm non-conductive faders provide a precise control feel and good readability in rack environments.
The 50 Hz high-pass filter with a 12 dB per octave slope helps eliminate vibrations, handling noise, hum, and excessive sub-bass that consume gain margin. In live sound, it's a simple lever to regain clarity and headroom before saturation, especially on compact systems or in resonant rooms.
dbx highlights a frequency response from 10 Hz to 50 kHz and a dynamic range greater than 112 dB, with high-quality electronics. In practice, these elements contribute to a clean processing with a useful headroom sensation when correcting without crushing the signal, and easy integration into balanced XLR or 6.35 mm jack chains.
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