Adams Digital 8 Inch Super Flat High Power Underseat Active Subwoofer With Dsp RMS 200W
Model: RUS 831DSP RUBI Series 

Support Setup & Tuning:
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Active Range: ≥110dB
T.H.D.: ≤0.05%
S/N Ratio: ≥100dB
Frequency Response: 20Hz-20KHz
Low Level Input: 20KΩ
High Level Input: 240Ω
Low Level Output impedance: 100Ω
Temperature -20 ~ 70°C
Supply Voltage: DC 10V ~ 14.4V
Turn On REM Output +12V Strating Voltage Output 0.2A
Power Consumption ≤0.1W
Power Output 2Ω
RMS 50W x4ch Build-in 4ch amplifier+1chx200W
Peak Power: 400Wx1
Dimension: L34.5cm x W24.5cm x H7.5cm
Single Input 
RCA Input 3.3Vpp
High Level 30Vpp
Output Range
RCA Output 13.0Vpp

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4ch high input
2 channel Aux Input
4 channel Aux output
31 band EQ
Bluetooth version 5.0

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Choice: 4ch high level, 2ch stereo low level, Bluetooth and USB PC,USB Music

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Freely definable output sound position and speaker type

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Gain range: Mute, off to -60.0dB

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1-6 Each output channel 31 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): 0.40 ~ 128.0
4. Gain: -20.0dB ~ +20.0dB, resolution 0.1dB

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Each output with 2 rank's high/low pass indepandent filter1 
1. Professional filter type: Butterworth, Linkwitz-Riley, Bessel 
2. Filter crossover: 20Hz-20KHz, Resolution 1Hz
3. Filter slope setting: 6/12/18/24/30/36/42/48dB/off.Oct

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Each output channel can be adjusted for phase and time delay, parameter range
Phase: 0/180
Time delay: 0.000-20ms, 0.00-692cm, 0.00-273inch

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Unit can keep 6-style of music scenes by preset.

FEATURE
Audio specification, main audio signal process diagram
This equipment adopts the audio extraction method with high sampling rate of 48KHz. The core processor is the digital signal processor (DSP) with high resolution 64 bit double precision floating point and 170 section 31 parametric equalizer or graphic equalizer, delay and frequency device (low shear and high cut filter, the types of specialized division include: Ning g / Bessel / Butterworth, CH1-CH6 nine slope 6dB and 12dB /18dB/ 24dB/30dB /36dB/ 42dB/ 48dB/off optional) etc..
Main audio signal process diagram

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Remote control function 
Control main volume
Control sub volume
Set memory
Can use remote choose usb file songs
Can use remote select input (Bluetooth, USB, Hi-Input, Low-Input)

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X70 Spec Normal/Executive select "Proton Socket", Premium Spec select "X70 Socket"

-Connects Directly into car dsp connector for easy and quick install 
-No need to cut the existing DSP wire 
-Fits most push-on terminals