Best Price Infinity Reference 475a High Performance 4-Channel Full-Range Amplifier (Silver/Black)

Infinity Reference 475a High Performance 4-Channel Full-Range Amplifier (Silver/Black)Buy Infinity Reference 475a High Performance 4-Channel Full-Range Amplifier (Silver/Black)

Infinity Reference 475a High Performance 4-Channel Full-Range Amplifier (Silver/Black) Product Description:



  • 4-Channel full-range amplifier with on-board electronic crossover and variable bass boost
  • 12dB variable bass boost circuit is provided to optimize the low frequency performance of your system
  • Variable 12dB per octave electronic crossover allows you to optimize system tuning based on speakers and location
  • Full-range preamp outputs facilitate use of multiple amplifiers without the need for adapters or signal splitters
  • One-year warranty

Product Description

The Infinity Reference 475a is a 4-Channel Full Range Amplifier capable of driving 2 sets of speakers. It has a built in 12db variable electronic crossover as well as a variable bass boost of 0 to 6db at 50Hz. The amplifier can drive four channels at 2 ohms with 90 Watts RMS. It can also be configured to drive two channels at 4 ohms with 180 Watts of power. The amplifier has a very attractive low profile. This amplifier comes with a one year parts and labor warranty. Infinity Systems is a leader in loudspeaker design for both car and home speaker systems and is part of Harman International.

Customer Reviews

Most helpful customer reviews

8 of 8 people found the following review helpful.
5Works great for me!!
By Dane Shepherd
I bought this amp to fit under the driver's seat of my 2000 CR-V. I had to cut the carpet and padding out from under the seat to clear the seat adjustment mechanisms, but it fits great and the glowing blue rails look pretty cool at night.I've got this hooked up to an Alpine head unit via preamp-outs and driving two pair of Infinity 6020 6.5" Component speakers. I cannot describe the difference in sound from the old Infinity shallow-mount coax speakers powered by the head unit. The bass is so deep and powerful with no clipping or bottom-out. The highs are crystal clear and not overpowering. It's hard to tell how much was due to the new amp or the new speakers (since I made both changes at the same time) but I now find myself looking for excuses to drive my car just so I can listen to music. The amp has plenty of features (both low and high pass x-overs and 4x, 3x, and 2x bridging for a variety of sub/sat setups. It is pretty large, but quite attractive, and the sheer amount of clean power is incredible. Highly recommended for loud clean sound; I have not tried this with big subs.

4 of 4 people found the following review helpful.
5High Quality Amp
By pro10is
I've been using this amplifier for over six months now and have had absolutely no problems. I've been unable to raise the volume more than 3/4 because the sound level is simply just too deafening. I can play it at ear piercing levels with no discernible distortion. Hookup was easy and there are plenty of options to customize the signal for your vehicle and head unit. The manual is well written. I carefully selected this amplifier after much research and I have been highly satisfied with the results. It has exceeded my expectations. Do your own research and select the amp that best fits your needs. If you decide to purchase this particular amplifier do so with reasonable confidence that you will receive a quality product.

4 of 4 people found the following review helpful.
5great amp, great price
By Zach Bell
I have owned this amp now for almost a month and I am very happy with it. it is powering two Kenwood 100watt rms 6x9's in the front doors and two infinity refrence 90watt rms 6.5's in the rear doors. My hu is a Clarion VZ409 and this amp compliments a great system with amazing sound. it has a set of preouts on the amp that allow you to link to another amp for a sub. i have it paired with a JL audio 250/1 slash v2 powering a 12W3V3-4 and i love the sound. the only problem i had was alternator whine which i fixed with a ground loop isolator. this is a great mid range amp with high end sound and features. i love it and reccomend it to all who want qualitry sound.

See all 22 customer reviews...


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