
AudioControl The EPICENTER Micro PRO — Bass Restoration Processor & Line Output Converter
Bass restoration plus line output conversion for factory radios, with ACR-4 remote.
- Authorized dealer
- Free US shipping
- Manufacturer warranty
Ships in 2–3 business days · 3–5 business days in transit · Estimated delivery 5–8 business days
SKU: AUD-ASP-EPICENTERMICROPRO-BASSLOC
Built for the install, not the spec sheet
AudioControl The EPICENTER Micro PRO — Bass Restoration Processor & Line Output Converter
The EPICENTER Micro PRO combines AudioControl's digital bass restoration processing with a full line output converter. It accepts either speaker-level or balanced line-level inputs, restores low-frequency content lost in the recording or the factory system, and outputs a line-level signal of up to 10V to the amplifiers.
Key Design Features
On the integration side, AudioControl's Load Matching Circuit with a selectable 20Ω, 60Ω or 20kΩ speaker-level input load provides compatibility with modern factory sound systems. Turn-on can come from a 12V remote input, GTO signal sensing or audio sensing, and a selectable ground isolation switch helps resolve ground-loop noise.
On the bass side, ParaBASS controls shape the restoration effect, and a selectable PFM subsonic filter at 24Hz or 15Hz, or bypass, sets the low-frequency limit. The circuit board is conformally coated against moisture, dust and temperature swings, and the ACR-4 dual-knob remote is included.
System Application
The EPICENTER Micro PRO is placed between a factory radio's speaker outputs and an aftermarket amplifier, making it a single-box solution for adding a subwoofer, or a full amplified system, to a factory head unit. With speaker-level input handling up to 40V and a 12V remote output that is active whenever the unit is on, it can also provide the turn-on signal for the amplifiers.
Installation Considerations
Current draw is 300mA with a recommended 1A fuse. Speaker and power connectors and the remote cable are included. EPIC Series monoblocks and the EPICFIVE can supply power, ground and remote through their EPICENTER Link harness.
Specifications
| Line-Level Input | Balanced, 10V RMS max, 7kΩ |
| Speaker-Level Input | 40V / 400W max (20kΩ setting) |
| Speaker-Level Input Impedance | 20Ω, 60Ω or 20kΩ (selectable) |
| Maximum Output (THD <1%) | 9V RMS, 13V peak |
| Output Impedance | 150Ω |
| Output Voltage | Configurable, up to 10V |
| THD | 0.03% |
| S/N Ratio | >105dB |
| Frequency Response | 10Hz – 22kHz (±1dB) |
| PFM Subsonic Filter | 24Hz, 15Hz or bypass |
| Turn-On Modes | Remote in / GTO signal sense / Audio sense |
| Remote Out | 12VDC, active when unit is on |
| Ground Isolation | Selectable |
| Power Supply | High-headroom PWM switching |
| Current Draw | 300mA |
| Recommended Fuse | 1A |
| Remote | ACR-4 dual-knob dash remote included |
| Bass Controls | ParaBASS |
| PCB | Conformally coated |
| Dimensions | 8" L x 3" D x 1" H |
| Weight | 0.9 lbs |
HF Audio Labs Perspective
The EPICENTER Micro PRO is the choice when a factory radio stays in the vehicle and bass restoration is wanted in the same step as line output conversion. The deciding factor against The EPICENTER PRO is the source: speaker-level factory outputs point to the Micro PRO; existing RCA outputs point to the PRO.
Measured, not marketed
Inputs
| Line-Level Input | Balanced, 10V RMS max, 7kΩ |
|---|---|
| Speaker-Level Input | 40V / 400W max (20kΩ setting) |
| Speaker-Level Input Impedance | 20Ω, 60Ω or 20kΩ (selectable) |
Outputs
| Maximum Output (THD <1%) | 9V RMS, 13V peak |
|---|---|
| Output Impedance | 150Ω |
| Output Voltage | Configurable, up to 10V |
Performance
| THD | 0.03% |
|---|---|
| S/N Ratio | >105dB |
| Frequency Response | 10Hz – 22kHz (±1dB) |
| PFM Subsonic Filter | 24Hz, 15Hz or bypass |
Control
| Turn-On Modes | Remote in / GTO signal sense / Audio sense |
|---|---|
| Remote Out | 12VDC, active when unit is on |
| Ground Isolation | Selectable |
Electrical Requirements
| Configuration | Bass Restoration Processor, Line Output Converter |
|---|---|
| Power Supply | High-headroom PWM switching |
| Current Draw | 300mA |
| Recommended Fuse | 1A |
System
| Remote | ACR-4 dual-knob dash remote included |
|---|---|
| Bass Controls | ParaBASS |
| PCB | Conformally coated |
Physical
| Dimensions | 8" L x 3" D x 1" H |
|---|---|
| Weight | 0.9 lbs |



