Features
Connections
Specifications

Features

Overview: The dbx 215s single 15-band graphic equalizer is a versatile, professional-quality EQ with simple, straight-forward controls. It features two independent channels and 15 frequency bands, broken down in 2/3-octaves. Each non-conductive slider has approximately 1" of movement with a detent at the 0 (flat) position. The 215s fits neatly into a standard equipment rack (1U space required), and includes 4 rack mount screws and washers.

Input Gain: The 215s is equipped with a rotary input gain control to set the signal level to the equalizer. The input gain control has a range of -12dB to +12dB. You can monitor the input to the EQ through the 4-LED Output Level Bar Graph, which has green (2), yellow (1), and red (1) indicators. There is also a red LED to indicate if the input signal is clipping. The 215s has independent input gain controls for each channel.

Frequency Bands: The 215s includes the following frequency bands: 25Hz, 40Hz, 63Hz, 100Hz, 160Hz, 250Hz, 400Hz, 450Hz, 630Hz, 1kHz, 1.6Hz, 2.5kHz, 4kHz, 10kHz, and 16kHz.

Switchable Boost/Cut Range: The dbx 215s has a maximum boost/cut range of +/- 12dB. If desired, you can switch to a range of +/- 6dB. This gives you finer control within the range. The boost/cut range switch is located on the front panel. When the button is pressed in, the button lights up to indicate the range is +/- 12dB. When the button is in the out position, the range is +/- 6dB, and the button is unlit. There are Boost/Cut Range switches for each channel.

Low Cut: To instantly cut out low frequencies, you can engage the built-in 50Hz 12dB/octave high pass filter. The Low Cut switch is located on the front panel, and remains lit when pressed in and activated. There are Low Cut switches for each channel.

EQ Bypass: Each channel has an EQ Bypass switch, which bypasses the graphic equalizer section in the signal path, when activated. An EQ Bypass switch is provided for each channel, and remains lit when engaged.

Connections

Inputs: The dbx 215s is equipped with a 1/4" TRS (tip/ring/sleeve) phone jack and a female locking XLR (pin 2 hot) input connector for each channel. The input can accept balanced or unbalanced input sources. The maximum acceptable input level is typically +22dBu (ref: 0.775Vrms).

Outputs: Each channel has a 1/4" TRS phone jack and a male XLR output connector. The outputs can be used with either balanced or unbalanced loads. The maximum output level is greater than +21 dBu balanced/unbalanced into 2 kΩ or greater, >+18 dBm balanced/unbalanced (into 600Ω).

AC Power: The 215s has a 3-pin IEC power cord receptacle, and accepts 100-240 VAC.

Specifications

• Frequency Response: <10 Hz to >50 kHz, +0.5/-3 dB
• Bandwidth: 20 Hz to 20 kHz, +0.5/-1 dB
• Dynamic Range: Typically >112 dB
• Signal-to-Noise: Typically >95 dB
• THD+Noise: <0.003%
• Interchannel Crosstalk: <-90 dB, 20 Hz to 20 kHz
• Input Impedance: Balanced 40 kΩ, Unbalanced 20 kΩ
• Output Impedance: Balanced 100 Ω, Unbalanced 50 Ω