Alpine R2-A60F 4-Channel Amplifier

Type: 4-channel Class D car amplifier
Power Output (CTA-2006 Compliant):
- 100 watts RMS × 4 channels at 4 ohms
- 150 watts RMS × 4 channels at 2 ohms
- 300 watts RMS × 2 channels bridged at 4 ohms
Frequency Response: 15 to 45,000 Hz (+0/-3 dB) (Hi-Res capable)
Signal-to-Noise Ratio: 80 dBA (reference: 1 watt into 4 ohms)

Hi-Resolution Audio Compatible: Reproduces frequencies up to 45,000 Hz for exceptional detail
Premium Components: High-efficiency transformers and custom capacitors for superior sound
Flexible Configuration: Can be used as a 4-channel, 3-channel, or 2-channel amplifier
Advanced Crossovers:
- Variable high-pass filters (50-400 Hz or 400-6000 Hz)
- Variable low-pass filters (50-400 Hz)
- Bandpass capability for component speaker systems
Versatile Inputs: Both preamp and speaker-level inputs (up to 10V)
Remote Control Ready: Optional RUX-KNOB.2 wired remote for rear channel level control

RMS Power Output (CTA-2006 Compliant):
- 100 watts × 4 channels at 4 ohms
- 150 watts × 4 channels at 2 ohms
- 300 watts × 2 channels bridged at 4 ohms
Frequency Response:
- 10 Hz – 45 kHz (+0/-3 dB, 1W into 4Ω)
- 20 Hz – 20 kHz (+0/-1 dB, 1W into 4Ω)
Signal-to-Noise Ratio:
- 80 dBA (at 1 watt into 4Ω)
- 100 dB (at rated power output, 4Ω)
Total Harmonic Distortion: ≤1% at rated power
Minimum Impedance: 2 ohms (unbridged), 4 ohms (bridged)
Input Voltage: 14.4V

Dimensions:
- Width: 11-1/8 inches (11.12″)
- Height: 2-3/16 inches (2.14″)
- Depth: 6-15/16 inches (6.92″)
Fuse Rating: 30A × 2
Recommended Power/Ground Wire: 4-gauge

Amplifier Class: Class D (high efficiency design)
Built-in DSP: No
Cooling: No fan (passive cooling)
Construction: Premium components including:
- High-efficiency transformers
- Low-noise custom capacitors
- Dual “Sierra” feedback/correction circuitry

Gain Controls
- Independent rotary gain controls for Channels 1/2 and 3/4
- Input Sensitivity:
  - Line level: 0.2 volts to 4.0 volts
  - Speaker level: 0.5 volts to 10 volts
Input Configuration
- Input Level Switch: Hi (speaker level) or Lo (line level)
- Input Channel Switch:
  - 1/2 position: 2-channel input duplicated to all outputs
  - 3/4 position: 4-channel source input
Crossover Controls
- Channels 1/2 (4-position switch):
  - Off: Full range output
  - HP: High Pass filter (50-400 Hz, 12dB/octave)
  - LP: Low Pass filter (50-400 Hz, 12dB/octave)
  - HP-H: High Pass filter for tweeters (400-6000 Hz, 12dB/octave)
- Channels 3/4 (4-position switch):
  - Off: Full range output
  - HP: High Pass filter (50-400 Hz, 12dB/octave)
  - LP: Low Pass filter (50-400 Hz, 12dB/octave)
  - BP: Band Pass filter:
    - High Pass: 50-400 Hz
    - Low Pass: 400-6000 Hz
Turn-On Options
- 2-way switch:
  - REM: Remote turn-on lead from head unit
  - DC: Automatic activation by DC voltage from speaker-level inputs

Power/Ground Terminals: Set-screw terminals (accept up to 4-gauge wire)
Remote Turn-on Terminal: Set-screw terminal (accepts up to 8-gauge wire)
Speaker Output Terminals: Four pairs of set-screw terminals (accept up to 10-gauge wire)
Signal Inputs:
- Two pairs of RCA jacks (Channel 1/2 and Channel 3/4)
- Compatible with line-level or speaker-level signals
- Speaker-level inputs require RCA adapter cables (not included)
Remote Control Port: RJ-25 jack for optional RUX-KNOB.2 wired remote (adjusts Channels 3/4 output level)

Hi-Res Audio Systems: Ideal for systems playing high-resolution audio files
Component Speaker Systems: Flexible crossovers allow powering tweeters, midrange, and subwoofers
Factory Integration: Speaker-level inputs and auto-sensing turn-on for factory system integration
Alpine Speaker Match: Perfect power match for Alpine’s R-Series speakers

Full System Setup: Front channels power component speakers (R2-S65C), rear channels power coaxial speakers (R2-S65)
Front Stage + Subwoofer: Front channels power component speakers, bridged rear channels power a subwoofer
Active Component Setup: Channels 1/2 power tweeters with HP-H setting, Channels 3/4 power midbass drivers with HP setting
Bi-amping Components: All four channels power component speakers (separate tweeter/midbass amplification)
Maximum Power Output: Bridged configuration powers high-end component speakers with 300W per channel

Hi-Res Audio Compatibility: Extended frequency response captures all the details in high-resolution recordings
Class D Efficiency: High power output with minimal heat generation
Flexible Integration: Multiple crossover options for various system configurations
Factory Integration: Speaker-level inputs and auto turn-on for easy OEM upgrades
Compact Design: Fits in tight installation spaces
Advanced Crossover Network: Eliminates the need for external crossovers in many applications
Component System Ready: HP-H setting specifically designed for powering tweeters
Thermal Protection: Built-in circuitry prevents damage from overheating

Alpine R2-A60F