Speck X.SUM Line Mixer with Breakout Box
Features
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.
16 Stereo Line Inputs-Stereo level control.
Pan/balance control
Mix assign switch that routes input channel to the main stereo mix or Mix-B stereo mix.
Mono Switch
Left and right balanced TRS inputs.
Master Section-Master level control.
Stereo/mono switch
Monitor/Phone level provides adjustment to headphone jack and Mix-B output.
Balanced TRS stereo mix output.
Expandable to 128 inputs.
Specifications
Breakout Box Details
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)
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.
Read the X.Sum review in
Sound On Sound Magazine
X.Sum and 500 Series mixing
system application
(700K PDF)
X.Sum Signal Flow Diagram
(347K PDF)
The Designer
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 35 years. Founded in 1973, Speck Electronics has consistently provided innovations in audio products for all segments of professional recording and touring. Other products include the LiLo mixer, the ASC equalizer,
and MicPre 5.0 preamp.