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What's Inside?
• 12-Channel Car Amplifier with Built-In Hi-Res DSP
• Bluetooth Adapter
• USB cable
Alpine PXE-X121-12EV 12-Channel Hi-Res Digital Sound Processor & Amplifier
The Alpine PXE-X121-12EV is a compact yet powerful 12-channel Hi-Res Digital Sound Processor and Amplifier designed for advanced car audio system integration and precision tuning. Delivering efficient staggered power output and Hi-Res Audio playback at 96kHz/24Bit, this DSP/amp combination provides exceptional sound clarity, phase alignment, and system control in a space-saving design.
Equipped with all-pass filter correction, matrix input summing, and fully adjustable crossovers and EQ, the PXE-X121-12EV allows installers and enthusiasts to fine-tune every channel for optimal performance. With support for high-level, RCA, digital, USB DAC, and Bluetooth® inputs, it integrates seamlessly with factory or aftermarket audio systems.
Key Features
- 12-channel Hi-Res Digital Sound Processor and Amplifier
- Hi-Res Audio playback at 96kHz/24Bit resolution
- Efficient amplifier design for reduced heat and power consumption
- All-pass filter correction for precise phase alignment
- Matrix input summing for seamless factory system integration
- Compact chassis for flexible installation options
- Bluetooth® audio streaming with included external module
- PC tuning software available via Alpine Knowledge Center
- Smartphone tuning app available on the App Store
- Optional RUX-C810 wired controller for volume, sub-level, and preset selection (sold separately)
Audio Processing & Tuning
- 31-band parametric or graphic equalizer per channel
- High-pass filter (HPF), low-pass filter (LPF), and bandpass crossovers for each channel
- Time alignment and advanced DSP control via PC or smartphone software
Connectivity
Inputs:
- 12-channel high-level inputs
- 2-channel RCA inputs
- Optical digital input
- Coaxial digital input
- USB (DAC) input
- HD Bluetooth input
Outputs:
- 10-channel high-level outputs
- 2-channel RCA outputs
Amplifier Power Output (Staggered Power Design)
- 25W RMS x 4 channels
- 50W RMS x 6 channels
- 100W RMS x 2 channels
- Can be run in parallel for 1-channel load at 2 Ohms
Technical Specifications
- Channels: 12-channel input / 12-channel output (10 high level, 2 RCA)
- Sampling Rate: 96kHz / 24Bit
- Equalization: 31-band parametric or graphic EQ
- Crossovers: HPF, LPF, and bandpass per channel
- Software Compatibility: PC and smartphone tuning applications
Why Choose the Alpine PXE-X121-12EV?
The PXE-X121-12EV combines powerful amplification with professional-grade digital sound processing in a single compact unit. Its Hi-Res Audio capability, advanced phase correction, and versatile input options make it ideal for upgrading factory systems or building fully customized multi-speaker audio setups while maintaining efficiency and installation flexibility.
| Brand | Alpine |
| Amplifier Class | D |
| Built-in DSP | Yes |
| Remote Control | Optional controller |
| Low-Pass Crossover Frequency | 20 Hz-40 kHz |
| Low-Pass Slope (dB/octave) | 6, 12, 18, 24, 30, 36, 42, 48 dB/oct |
| High-Pass Crossover Frequency | 20 Hz-40 kHz |
| High-Pass Slope (dB/octave) | 6, 12, 18, 24, 30, 36, 42, 48 dB/oct |
| RMS Power Output (Watts x Channels) | 50 x 6, 100 x 2 |
| Power at 2 Ohms (Watts x Channels) | N/A |
| Bridged Power (Watts x Channels) | 200 x 1 |
| Minimum Impedance Bridged | 4 |
| Best Frequency Response | 20Hz-40k Hz |
| THD at Rated RMS Power | 0.1 |
| Signal to Noise Ratio | 101 dB |
| Input Voltage | 14.4v |
| Bass Boost | No |
| Bass Boost Frequency | N/A |
| Fan Cooled | No |
| Fuse Rating | 60 |
| Speaker Level Inputs | Yes |
| Preamp Outputs | 2 |
| Width (inches) | 10-3/8 |
| Height (inches) | 2-3/8 |
| Depth (inches) | 11-5/16 |
| Parts Warranty | 1 Year |
| Labor Warranty | 1 Year |