Arc Audio PSM Pro Digital Sound Processor | Plug and Play

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Harley Davidson Minature Pro Digital Sound Processor

Plug and Play for stock radios 14-23 Harley Davidson ModelsĀ 

Plug and Play for stock radios and amps 23 CVO to current Harley Davidson ModelsĀ 

The ARC Audio PSM Pro digital sound processor is a small but powerful device designed to enhance the audio quality of your car or motorcycle's sound system. It is an upgraded version of the PSM offering even better performance and 8 output channels.

The PSM Pro uses advanced 32-bit DSP technology and has 296 total bands of full variable parametric equalization, open architecture crossover selection, signal delay, and phase control. This allows you to tune your audio system to your specific preferences and improve the quality of your listening experience.

Processor Type

Stand Alone Unit

Processor Resolution


Sample Rate


Analog Inputs

6 CH. Differential in (RCA or Speaker Level)

Input Sensitivity

2V - 16V RMS

Digital Inputs


Auto-sense Turn-On

DC (BTL) (Uses Ch 1/2 Inputs Only)

Outputs (RCA)


Outputs Voltage (RCA)

Up to 3.5V

Input Impedance (RCA)

10k ohms

Frequency Response

20Hz - 23.5kHz

S/N Ratio 1V 1:1


S/N 4V 1:1


Operating Voltage

6V - 17.0V (Start Stop Compliance to 4.5V)

Output Equalization

31 Band + 6 (37 Band) X 8 Ā Parametric EQ, Highpass Shelf, Lowpass Shelf, 1st & 2nd order Allpass. (296 Total Bands

Output Equalization Resolution

0.01dB dB per step +18dB / -24dB

Output Signal Delay

Up to 30ms per channel in .01ms increments (Fixed Point Delay)

Input Signal Mixer

Yes - 8-Channels In (Including Digital) x 8-Channels Out

Advanced Mixer (Output Signal Mixer)


Easy-to-use Mixer Assistant



Phase Correct AP/HP/LP/BP all channels

Crossover Slopes

6dB, 12dB, 18dB, 24dB, 30dB, 36dB, 42dB, 48dB Slopes all bands all channels

Crossover Types

Butterworth, Linkwitz-Riley, Bessel, Variable Q, Chebyshev (all channels all bands)

Crossover selectable frequencies

10Hz - 20kHz in 0.1 Hz increments)

Output Signal up mixer


Input Signal Equalization

12 Bands Parametric (linkable) Per Channel

Input Equalization Resolution

1/10th dB per step +18dB / -24dB

Input Equalization All Pass Filters

Yes - Individual per input EQ band

Input Signal Delay

Yes - Up to 11.04ms per channel input


Up to 4-Presets

External Remote Level Control

Yes (LR1 Sold Separately)

AXP WiFi control adapter card


Preset selection without controller use

Yes - Optional manual trigger switches +/- for up to 4 presets (Not Included)

Remote Turn-On Output Controls

Turn on Output (up to 40ms), Turn-on Hold (up to 40ms), Auto-sense hold time (up to 200ms)

Remote Turn-On Output On/Off lead timing control

Remote on/off adjustable up to 40 seconds each

Maestro AR Module interface capable

Yes - Requires Maestro T-Harness, and data cable for connection.

Expansion Capability

PSM-Pro can be run in multiples with individual USB connections to a single PC with single operating software being used

Software Interface

64 bit Windows 8, Windows 8.1 or Windows 10


3.75"(L) x 3.0"(W) x 1.35"(H)

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