Compact format audio mixers with 2, 4 or 6 mono input channels and a stereo line input. Each mono channel has a combo XLR / jack input with individually switchable mic / instrument impedance and + 48V phantom power for the XLR. The input channels have treble / bass EQ and pan controls and the mono channels also have an effect level to vary the amount of internal digital delay effect added for vocals or instruments. An internal player / recorder with a backlit display can accept a USB memory containing compressed audio files in various formats or, alternatively, connect to a smartphone via the Bluetooth wireless link. The output is delivered on a pair of balanced XLR connectors and offers very low-noise operation for high-quality studios or live performances.

Code	170.871UK
Model	CSM-4
Tickets	2 x XLR / jack combo + 2 x stereo jack
Power supply	5Vdc 1A (adapter included)
Power consumption max.	5W
Gain	-14 to + 40dB
EQ: Bass	± 15dB @ 80Hz
EQ: Treble	± 15dB @ 12kHz
Phantom power	+ 48V individually switchable (XLR inputs only
Input impedance: microphone	2k Ohms
Input impedance: line	20k Ohms
Audio source	Internal USB player / recorder and Bluetooth receiver
Playback audio format	USB mp3, wma, ape, flac
Recording audio format	USB mp3 (48kHz 128kB / s)
Bluetooth version	2.1 + EDR
Frequency response	20Hz - 20kHz (± 0.5dB)
THD + N	<0.03% @ 1kHz
Dynamic range	102dB
Crosstalk: stereo	92dB
Departure	Left + Right balanced XLR
Output impedance	120 Ohms
Max. output level	3Vrms
Dimensions	166 x 165 x 66 mm
Weight	0.89kg