The ALTAIR DA-410 is a compact high performance distribution amplifier/zone mixer/mic
 splitter. In one only 19" Rack high the device is able to process two stereo input signals
 to obtain five stereo output signals, all with independent level controls.
 Used as Zone Mixer, the unit can control five zones in stereo mode or ten in mono mode
 (or any other combination), from the mix of the original two stereo input signals.
 As a audio distributor, it permits to obtain up to ten mono output signals,
 or five in stereo mode for its usein press rooms, recording units, audio production,
 broadcast, etc. Since it has two stereo inputs, the DA-410 permits to use the B stereo
 input as an emergency (reserve) input signal.
 Individually selected MIC/LINE input preamplifiers allows microphone or line signals
 splitting to additional mixers without quality and headroom degradation. Up to 4x8
 or 1x10 active splitting is possible.
 One MONO switch per Zone allows to convert the output signals in order to adapt them
 to monophonic equipment. With monophonic input signals, this switch is equally useful
 to duplicate the signals to L, R (stereo like).
 The unit has a monitoring system or PFL, with built-in micro-speakers, headphone output
 and selectable Vu-meter. It allows analysing and calibrating the input signals
 and all the outputs. This stereo monitoring system permits a simple and efficient control
 of audio continuity in moderately noisy environments.
 All the inputs and outputs are electronically balanced (XLR) and admit as option,
 input and output transformers in order to improve the common mode rejection ratio
 as well as providing galvanic isolation.
 Up to two parametric equaliser cards TE-F can be installed as an option, in each one of
 the ten outputs, permitting the appropriate tonal correction to each zone or speaker
 - 2 Stereo Inputs + 5 Stereo Outputs (10 in mono mode).
 - Mic/Line active splitter, 4x8/1x10.
 - Balanced Inputs/Outputs.
 - Built-in miniature stereo speakers. PFL and headphones output.
 - SIGNAL/CLIP LED´s indicators in all input and output signals.
 - Input and Output compatibility to mono/stereo signals.
 - Optional transformers in all the inputs and/or outputs.
 - Up to 2 optional parametric equalisation points on each output.
 Technical Data:    
 Number of inputs:    2 stereo (XLR-3-31)
 Input impedance:    2 KΩ / 5 KΩ (MIC/LINE), Electronically balanced
 Input level:    0 dBu nominal
 +9 dBu maximal mic. input
 +22dBu maximum line input
 Input gain/attenuation:    +6/-oo dB Level control via calibrated rotary
 Nominal gain:    0 dB/ +12 dB LINE/MIC input selection
 Number of outputs:    5 stereo or 10 mono (XLR-3-32)
 Output impedance:    100 Ω Electronically balanced
 Output gain/attenuation:    +6/ -oo dB Level control via calibrated rotary
 CMRR:    Greater than 55dB (20Hz - 20KHz)
 Noise:    Less than -100dBu at any output 20Hz - 20KHz
 E.I.N. 111 dBu MIC inputs, 200 Ω source impedance
 Frequency responde:    10 Hz to 50 Khz (+0, -0,5 dB)
 Channel separation:    Greater than 90 dB at 1KHz, 67 dB (20 Hz - 20KHz)
 Indicators:    CLIP (+15 dBu) red LED
 (two per stereo input and output)
 SIGNAL (-20dBu) green LED
 (two per stereo input and output)
 5 LED's stereo Vu-meter,switchable between inputs
 and outputs
 Vu-meter visualisation selector (8 LES's)
 Monitoring:    Headphones output, Jack 1/4"
 Built-in stereo micro-speakers
 (maximum SPL 82 dBa at 1m)
 Distortion:    Less than 0,01% at 0 dBu, (20Hz - 20KHz)
 Power requirement:    30 VA
 Dimension (WxHxD):    483x44x245mm
 Options:    Input and output transformers 
 Equaliser cards (2 per output) 
 Plastic or metal (key protected) security cover