About the Infinity DSP4425
Digital signal processing
Digital signal processing
One of the best ways to get superior sound in your car is to add an amplifier to pump up the power, along with a digital signal processor to fine-tune the sound quality. Infinity's incredibly small DSP4425 four-channel amplifier and processor will do both, providing four channels of 25 watts RMS (more than twice the power of a typical factory radio) while sculpting the sound with powerful tuning software using your Windows PC.
Connecting to the whole system
Infinity designed the DSP4425 to take the signals meant for your vehicle's front and rear speakers, process those signals to create four finely-tuned and powered outputs, and then send them on to your speakers. You can also use this DSP/amp to power front tweeters and midrange drivers, if you're building a front-stage-only sound system.
Bass expansion
The DSP4425 features a pair of full-range preamp outputs, channels 5 and 6, that can be used to send signals to a subwoofer amp's inputs. An optional remote control works with these channels serving as a bass level controller.
Tuning
Every powered channel features 31-band EQ, switchable from parametric to graphic; completely variable high-, low-, and band-pass filters with selectable slopes; time delay, up to 12ms in 0.2ms increments; 0/180° phase adjustment; plus a lot more. You can assign each input to an output, as well as sum different input signals in order to create a full-range signal to be processed.
DSP4425 adjustment software graphic interface
Product highlights:
- 4-channel car amplifier with digital signal processing
- 25 watts RMS x 4 at 4 ohms
- 35 watts RMS x 4 at 2 ohms
- Class AB amp technology
- DSP and EQ tuning tool adjustments made via USB connection to a Windows PC
- save up to 10 presets
- USB cable included
- inputs: 4 assignable preamp and speaker-level
- outputs: 4 processed speaker-level, 2 full-range preamp (4-volt)
Adjustment Details:
- 31-band EQ (selectable parametric or graphic)
- adjustable high-, low-, and band-pass filters (20-20,000 Hz)
- selectable filter slopes (6, 12, 18, 24, 30, 36, 42, 48 dB/octave)
- adjustable delay: 0 to 12ms in 0.2ms increments
- selectable phase: 0° or 180°
- programming done by your Windows-run PC
Other Features:
- optional wired remote (for ch 5/6) available (#108RBC)
- fuse rating: 15A x 1
- wiring and hardware not included with amplifier
- 8-gauge power and ground leads recommended
- dimensions: 5-11/16"W x 2"H x 9-3/8"D
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # DSP4425AM
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More details on the Infinity DSP4425
Features & specs
| Performance | ||
|---|---|---|
| RMS Power Output (Watts x Channels) |
25 x 4 | |
| Peak Power Output (Watts x Channels) | 50 x 4 | |
| Power at 2 Ohms (Watts x Channels) | 35 x 4 | |
| Bridged Power (Watts x Channels) | N/A | |
| Minimum Impedance Bridged | N/A | |
| Minimum Impedance Unbridged | 2 | |
| Minimum Impedance | 2 | |
| Best Frequency Response | 10-22k Hz | |
| THD at Rated RMS Power | --- | |
| Signal to Noise Ratio | 68 dB | |
| Input Voltage | 14.4v | |
| Features | ||
| Amplifier Class | AB | |
| Low-Pass Crossover Frequency | 20-20k | |
| Low-Pass Slope (dB/octave) | 6, 12, 18, 24, 30, 36, 42, 48 | |
| High-Pass Crossover Frequency | 20-20k | |
| High-Pass Slope (dB/octave) | 6, 12, 18, 24, 30, 36, 42, 48 | |
| Bass Boost | --- | |
| Bass Boost Frequency | --- | |
| Fan Cooled | No | |
| Fuse Rating | 15 | |
| Speaker Level Inputs | Harness, 18 AWG | |
| Preamp Outputs | 1 pair | |
| Width (inches) | 5-11/16 | |
| Height (inches) | 2 | |
| Depth (inches) | 7-15/16 | |
| Parts Warranty | 1 Year | |
| Labor Warranty | 1 Year | |
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