MERCURY DSP 8.4 HD (Digital Sound Processor) Subwoofer Box with 4 Channel Amplifier ✅ 8" Subwoofer Box ✅ 4 Channel Amplifier Buildin ✅ Bluetooth Steaming with Mobile Phone ✅ Remote Monitor ✅ Digital Sound Processor Function Introduction Specification Active Range:≥110dB S/N Ratio : ≥100dB T.H.D. : ≤0.05% Freq. Response : 20Hz～20KHz Input Impedance : Low level input:20KΩ, High level input:240Ω Low Level Output : 100Ω Power Output (4Ω) : RMS 50W X 4，Peak Power 400W X 1 Signal Input / Output Range : RCA Input：3.3Vpp；High level：30Vpp；RCA Output：13.0Vpp Temperature : -10～70℃ Supply Voltage : DC 9V～15V Turn-On REM Output : +12V starting voltage output (0.1A) Power Consumption : ≤0.1W Weight : 4.6kg Dimension : 345Lx245Wx70H mm Function Input Signal Type : Choice: 4 ch high level, 2 ch stereo low level,Blue Tooth ，SQ play RCA Output Location : Freely definable output sound position and speaker type Output Signal Gain : Gain range: Mute, -59dB to 0dB Output Signal Equalizer : 1-4 Each output channel 10 band , 5-6 each output channel is independent of the 8 band equalizer engine: 1. Equalizer type: 1st equalizer for Q and low pass option. : 2nd equalizer for Q and high pass option : others for Q balance 2. Frequency range: 20Hz～20KHz，resolution 1Hz 3. Q (slope or gradient): 0.404～28.85，resolution 0.01 4. Gain: -12.0dB～+12.0dB，resolution 0.1dB Output Signal Crossover : Each output with 2 rank’’s high/low pass indepandent filter 1. Professional filter type: Butterworth, Linkwitz-Riley, Bessel 2. Filter crossover: 20Hz - 20KHz , Resolution 1Hz 3. Filter slope setting: CH1-CH4 6/12dB/Oct, CH5-CH66/12/18/24dB/Oct。 Output Phase And Time Delay : Each output channel can be adjusted for phase and timedelay, parameter range Phase: 0゜/180゜ Time delay: 0.000-5.4ms，0.00-187.00cm，0.00-74.00inch Scene Operations : Unit can keep 6-style of music scenes by preset.

Access Series : AS 165 2-Way Component Kit 2 way 165mm (6.5″) drivers kit, separate crossover with tweeter level control. Grilles included. The Access line’s defining reference combines high power handling, extended low frequency response, large soundstage, high dynamics and high efficiency. It will even allow direct connection to a High Power car radio.