The GL2400-40 is a versatile mixing console suitable for both studio and live sound applications. Its extensive configuration options allow for individual setups tailored to different mixing techniques or sound reinforcement needs. Two preamplifiers with up to +34 dB of gain ensure clean and undistorted sound. It features microphone inputs with 40V phantom power and a pad switch for a cleaner and higher-quality sound. Each channel includes a 4-band EQ, with the outer bands (80 Hz and 12 kHz) having a shelf curve, and the inner bands being adjustable (central frequencies of 35 Hz - 1 kHz and 500 Hz - 15 kHz). All bands operate within a range of +/- 15 dB. Each dual stereo channel allows for connecting up to 4 line signal sources (2 stereo) and 1 MIC signal. Dual channels are equipped with a 4-band EQ (80 Hz, 250 Hz, 2.5 kHz, 12 kHz, +/- 15 dB). It has 6 Aux outputs divided into two sections (1-4 and 5-6) switchable between Pre/Post Fade. All Aux outputs can be reconfigured (Pre and Post EQ) using internal jumpers. The stereo channels' Aux signals can be configured so that the left channel signal is connected to odd-numbered Aux outputs and the right channel signal to even-numbered Aux outputs. The 7x4 Matrix combines subgroup signals, main output, and additional external signals and can be configured as 4x Mono or 2x Stereo. The Matrix includes AFL and Mute functions. The mixer features Talkback, PFL, and Mute functions with LED indicators. It can expand the number of inputs using a serial chain of multiple GL2400 mixers with the Sys-Link V2 output (not included). Technical Specifications: - Microphone inputs: XLR/TRS input, TRS Insert, TRS Direct, gain, PAD 20 dB, phase switch, Phantom 48 V, HPF 12 dB/Oct @ 100 Hz, 4-band EQ with 2 adjustable mid-frequencies, Pan, PFL, Mute, 100 mm fader, routing switches GP1-4, L/R. - Stereo inputs: 4x TRS inputs + 1x XLR, each input with its own Gain, 4-band EQ, Balance, PFL, Mute, 100 mm fader, routing switches GP1-4, L/R, possibility to assign dual input directly to the mix output bus. - Subgroups: 4. - Subgroup features: Insert, 4-segment LED level indicator, Pan, L/R switch. - Matrix 7x4 (4 subgroups + L/R + external signal). - 2 Trk input and output: TRS. - Auxiliary stereo output: Pre Fade. - Talkback input. - Headphone output. - 4-pin XLR connector for lamp. - Channel crosstalk: 90 dB. - Residual noise: -96 dBu. - Microphone channel noise: -128 dB. - Frequency response: 20 Hz - 50 kHz (+0/-0.5 dB). - THD: 0.003%. - CMRR @ 1 kHz: greater than 80 dB.