About the Infinity Reference 7520a
Whether you're building a component system, powering a pair of full-range speakers, or just pounding away with a subwoofer, there's an Infinity Reference series amp ready to take on the job. Boasting impressive power ratings and fine-tuned controls, these amplifiers are capable of sending your music to new sonic heights.
It's all thanks to high-output MOSFET power supplies — which ensure maximum power delivery to your speakers for efficient operation — and variable filters that let you contour the output to fit your music. And, since every Infinity Reference amplifier is CEA-2006 compliant, you'll know you'll get the power as advertised.
The Infinity Reference 7520a 2-channel amplifier is designed to work in a variety of applications. With 97 watts RMS in stereo mode, it can drive a pair of full-range or component speakers. Or, bridge the channels to mono and power a subwoofer with 283 watts of RMS power. The built-in bass boost juices your lows up to 12 dB at 50 Hz.
Product highlights:
- 97 watts RMS x 2 at 4 ohms
- 142 watts RMS x 2 at 2 ohms
- 283 watts RMS x 1 at 4 ohms in bridged mode (4-ohm stable in bridged mode)
- stereo or bridged mono output
- variable high-/low-pass filters (32-320 Hz, 12 dB/octave)
- variable Bass EQ (0-12 dB @ 50 Hz)
- CEA-2006 compliant
- preamp outputs
- preamp- and speaker-level inputs
- fuse rating: 30A x 1
- 8-gauge power and ground leads recommended — hardware and wiring not included with amplifier
- 12-5/16"W x 2-11/16"H x 12-1/8"D
- warranty: 1 year
- Our 60-day money-back guarantee
- MFR # Reference 7520a
What's in the box:
Infinity Reference 7520a owner's manual
- 2-Channel amplifier with an installed 30A ATC fuse
- One 11" speaker-level input harness
- One 30A ATC fuse
- 4 Self-tapping screws
- 1 Silica gel packet
- One 8" x 2-1/2" Infinity sticker
- Instructions
- Amplifier Quick Start Guide
- Warranty card
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Features & specs
| Performance | ||
|---|---|---|
| RMS Power Output (Watts x Channels) |
97 x 2 | |
| Peak Power Output (Watts x Channels) | N/A | |
| Power at 2 Ohms (Watts x Channels) | 142 x 2 | |
| Bridged Power (Watts x Channels) | 283 x 1 | |
| Minimum Impedance Bridged | 4 | |
| Minimum Impedance Unbridged | 2 | |
| Minimum Impedance | 2 | |
| Best Frequency Response | 10-69k Hz | |
| THD at Rated RMS Power | 1% | |
| Signal to Noise Ratio | 83 dB | |
| Input Voltage | 14.4v | |
| Features | ||
| Amplifier Class | AB | |
| Low-Pass Crossover Frequency | 32-320 Hz | |
| Low-Pass Slope (dB/octave) | 12 dB | |
| High-Pass Crossover Frequency | 32-320 Hz | |
| High-Pass Slope (dB/octave) | 12 dB | |
| Bass Boost | 0-12 dB | |
| Bass Boost Frequency | 50 Hz | |
| Fan Cooled | No | |
| Fuse Rating | 30 x 1 | |
| Speaker Level Inputs | --- | |
| Preamp Outputs | 1 pair | |
| Width (inches) | 13-1/2 | |
| Height (inches) | 2-11/16 | |
| Depth (inches) | 12-1/8 | |
| Parts Warranty | 1 Year | |
| Labor Warranty | 1 Year | |
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Features
Inputs and Outputs Notes
Status LEDs: The amplifier has the following status LEDs:
- Clip: indicates the amplifier is being overdriven, and your speakers may be in danger. This should blink only on musical peaks, and not be on constantly.
- Power: indicates the amplifier is on
- Protect: indicates any of the following problems: DC voltage on amplifier output, overheating, under voltage, over voltage, and short circuit in the speakers or wire
Variable Filter: The internal filter can be set for low-pass, high-pass, or full-range operation. In the low-pass and high-pass modes, the filter can be adjusted from 32 to 320 Hz. In each case, the filter has a slope of 12 dB per octave.
Bass Boost: For added low frequency performance, this amplifier has a 0 to 12 dB variable bass boost centered at 50 Hz.
Preamp Outputs: The preamp output jacks provide a convenient source for daisy-chaining an additional amplifier without running an extra set of RCA cables from the front of the vehicle to the amplifier location. These outputs provide a full-range signal.
Right Side of Amplifier:
- +12V (power): 0.357" screw terminal
- Remote: 0.357" screw terminal
- GRD (ground): 0.357" screw terminal
- Speakers: 0.357" screw terminals
Left Side of Amplifier:
- High Level Input: 4-pin jack for use with supplied speaker-level input harness
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Customer Q&A
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This is a great amp. I have it powering a set of Infinity Reference 6000CS components. Perfect combination. My speakers sound great. Best bang for your buck.
Erick from Sylmar, CA