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Mix it - Group it - Combine it - Blend it - Sum it
The X.Sum design takes you beyond the simple “hard-left” or “hard-right” summing box, and gives you 16 stereo input channels with level, pan, mix assign and mono select.
If you need more than simple summing, then you need the X.Sum. The X.Sum is a 32 x 4 line mixer that can be used for external DAW summing or as a line mixer for synths, samplers, and effect returns. Any of the 16 stereo channels can be assigned to either the main stereo Mix output or the stereo Mix-B output.
The In's & Out's
Connect the X.Sum to virtually any line level source: balanced, unbalanced, transformer, or transformer-less. The X.Sum has high headroom that will handle balanced signals up to +28dBu. All audio inputs and outputs are fully balanced and available on TRS connectors.
Looking a bit closer at the rear panel, you will notice a Multi-function I/O connector. This connection increases the functionailty of the X.Sum's inputs and outputs.
Breakout Box Details
The X.Sum includes an external breakout box that adds connectors for the Mix-B outputs and "Pre" Mix-A outputs. The left/right "Pre" Mix-A outputs bypass the X.Sum's master section so you can use your own external preamps to add character and color to your mix.
The X.Sum is the work of Vince Poulos, the designer and owner of Speck Electronics. Speck Electronics has been producing quality professional audio products for over 30 years. Founded in 1973, Speck Electronics has consistently provided innovations in audio products for all segments of professional recording and touring.
16 Stereo Line Inputs-
Stereo level control
Mix assign switch that routes input channel to the main stereo mix or Mix-B stereo mix.
Left and right balanced TRS inputs.
Master level control.
Monitor/Phone level provides adjustment to headphone jack and Mix-B output.
Balanced TRS stereo mix output Multi-purpose I/O connector. Expandable to 128 inputs.
Breakout Box & Expander cables-
Combo breakout for Mix-B and Mix-A outputs.
Cables to link 2, 3, or 4 X.Sum's.
Frequency Response (12 dB gain) 3Hz-54kHz (+0/-.5dB)
THD+n (Gain 12, Output +24dBu) .0024%
Noise (22Hz-22kHz) -102dBu (Residual output noise) -87dBu (16 channels routed, faders off)
Maximum Input Level +28dBu
Maximum Output Level +28dBu
Input Impedance 30K Ohms (Balanced) 15K Ohms (Unbalanced
Output Impedance 60 Ohms
Dimensions (Mixer) WxHxD=1.75" x 19" x 10.75" (44mm x 483mm x 273mm) Dimensions (Power Supply) WxHxD=4.6" x 2.75" x 7.3" (117mm x 70mm x 185mm) Shipping Weight (Mixer & PS) 15 Lbs (6.8kg)