A model with DSP added to the HELIX M4 amplifier. The DSP has a total of 10 channels, the amplifier is 100w x 4, and it is an excellent product that can even do britches! Last but not least, the most attractive feature is the price. The performance is better than the price, and this is our highly recommended amplifier!

Channel mode 2ch/3ch/4ch Output power 100W x 4ch 4Ω stereo 100W x 4ch 2Ω stereo 200W x 2ch 4Ω bridge Output operation class Class D operation < NL> Damping factor 100 or more RCA input 6ch input High level input 6ch speaker input Auto power on function supported (at high level input) Input sensitivity RCA 1V to 4V Input sensitivity High level 5V20V Input impedance RCA input: 22KΩ/High level input: 933Ω or 20KΩ (ADEP.3 automatic switching) Optical digital input Square TOS x 1 system (SPDIF:12-96KHz/24bit ) HELIX EXTENSION CARD No setting RCA output terminal, output voltage 6ch OUT PUT, maximum output voltage 6V Remote terminal 1 remote in, 2 remote out Frequency characteristics (+0/- 1dB) 20~22KHz Harmonic distortion rate 0.015% DSP 64bit processor x 1, clock frequency: 295MHz Operating sample rate 48KHz / 24bit A/D converter High sound quality 24bit D/A converter High sound quality 24bit SN ratio 108dB or more (when digital input) 105dB or more (when analog input) Output level 5.0dB to -30dB Level adjustment step for each part 0.10dB / step Time alignment step 7.1mm/step Operating power supply voltage 10.5V to 16.0V (corresponds to short-term power supply voltage drops of 5 seconds/6V) Control input terminal, USB mini terminal (for PC connection) Idling current 1.5A or less Remote output current 500mA (maximum) Built-in fuse ATO 30A x 2 (on board) External size W x H x D 154 x 50 x 230 (mm) M-ONE / M-FOUR Same size Weight 2.3Kg Accessories USB cable 1.8m, hex wrench