SPL Audio MixDream XP 16×2

16+2 Channel Class-A Summing Unit


One MixDreamXP can sum up to 16 audio tracks to a stereo signal, and should the need arise for more than 16 tracks, several MixDreamXP may be linked together. Owners of a MixDream can expand this unit with the cost effective MixDreamXP at an identical quality level and by the way, that‘s where the suffix „XP“ comes from (=Expansion).

The MixDreamXP discrete class A technology is based on the same 60-volt rails (+/- 30V) used in the fully featured MixDream.

Many do ask whether analog summing is better than digital summing. But perhaps the real question is whether digital summing is better than analog summing? We at SPL don‘t know of anyone who says so. We do know that summing with the MixDreamXP creates an amazing signal depth, precise localization and a wonderful stereo imaging. Moreover, the addition of individual instruments results in soft and pleasant transitions.

These are analog summing results that we appreciate from past decades of the best analog technology. The MixDreamXP now allows DAW users to exploit this potential with maximum comfort and uncompromising quality, ensuring that nothing can stand in the way of the engineer‘s having the best of both analog and digital worlds.


– Input Impedance: 10kOhm
– Max. Input Level: +28dBu


– Output Impedance: 65Ohm
– Max. Output Level: +28dBu (@ 1kHz, THD+N -95dB)


– Frequency range: ‹1Hz-200kHz (-1 dB)
– THD+N: -103dBu (20-22kHz, Input Level +10dBu)
– Noise Level: -97dBu (20-22kHz, A-weighted)
– Dynamic range: 125dB (20-22kHz, A-weighted)
– Crosstalk L-R: -90dB (@ 1kHz, Input Level +10dBu)
– CMRR: ‹70dB (@ 1kHz, Input Level +10dBu)

Power Supply

– Toroidal transformer
– Voltage selector: 230V/115V
– Ground-Lift switch
– Power Consumption: 36W

Dimensions & Weight

– Standard EIA 19 inch Housing, 1U
– W x H x D: 482 x 44 x 237mm/19 x 1.76 x 9.5 inch
– Weight: 3.55kg/7.81 lbs

Additional information

Weight 8 lbs
Dimensions 10 × 20 × 2 in