- Reference Series Class AB 4-Channel Amplifier
- RMS Power Rating:
- 4 ohms: 75 watts x 4 chan.
- 2 ohms: 90 watts x 4 chan.
- Bridged, 4 ohms: 180 watts x 2 chan.
- Max power output: 117 watts x 4 chan.
- MOSFET power supply
- LED power and protection indicators
- Tuned Bass EQ (0-6 dB bass boost at 50 Hz)
- IMS inputs allows connection to other Infinity expansion products
- Gold-plated preamp RCA outputs
- DC, overheat, over or under voltage, and short circuit amplifier protection
- Gold-plated RCA level inputs
- Variable high-pass filter (32-320 Hz, 12 dB/octave)
- Variable low-pass filter (32-320 Hz, 12 dB/octave)
- CEA-2006 compliant amplifier
- Frequency response: 20-20000 Hz
- Efficiency: 85 dB
- Dimensions: 14-3/4"L x 9"W x 2-11/16H
- 4-gauge power and ground leads recommended. Contact us for information regarding a discount on a select amplifier kit when purchased together.
- Authorized Internet Dealer
- 1-year Manufacturer's warranty
Sonic Electronix, Inc. can only ship Infinity products within the United States of America.
|
Average Customer Rating is 4.5 out of 5 stars:
Share your thoughts with others:
|
|
Average Attributes Rating:
| Durability |
|
4.0 |
| Value |
|
4.5 |
| Features |
|
4.5 |
| Design |
|
4.3 |
| Usability |
|
4.5 |
|
what's this?
|
|
|
Quick Comparison:
|
|
Most Helpful Customer Reviews:
|
Review by
Mathieu from Lemoyne, PQ, Canada
| Overall |
|
| Durability |
|
| Value |
|
| Features |
|
| Design |
|
| Usability |
|
|
The amp are easy to plug and give a good sound ! Great product!
|
|
Review by
Alex from Chicago, IL
| Overall |
|
| Durability |
|
| Value |
|
| Features |
|
| Design |
|
| Usability |
|
|
I bought my first 475a five years ago. I built a custom mount for it in my car and wired everything up. It performs very well. It can drive strong power to everything I have (Kappa speakers). However, I had to replace it last year as 1, and then 2 channels died on the unit. I have it protected by fuses and I've never blown one.
The biggest concern with this unit is the exterior heat it can generate. If you listen to moderate loud music (imagine comfortably hearing music on the highway with your windows down) for more than 15 minutes, you will not be able to touch this unit with your hands. I can't speak on the effect of this heat on the circuitry inside, but i speculate it pushes some components very close to their threshold.
Lots of options (but an aesthetically dumb design by not making them more exposed). Also wish the controls could be easier handled without tools.
|
|
Review by
Jason from Toronto, Canada
| Overall |
|
| Durability |
|
| Value |
|
| Features |
|
| Design |
|
| Usability |
|
|
Recently ordered this amp from Sonic. Shipping was fast and customer service was great. Finally got around to hooking it up and although I have not pushed it to hard as yet it sounds pretty good for an "entry level" amp. Signal to noise ratio isn't exactly the best as there is some hiss but so far it gives off pretty good power. Running it in tri way mode. Powering a set of components up front and a sub in the rear. Good enough for a daily system but not for a high sound quality build.
|
|
Review by
JustM3 from Houston Tx
| Overall |
|
| Durability |
|
| Value |
|
| Features |
|
| Design |
|
| Usability |
|
|
I had this amp connected in my now wife's car in the trunk in Texas Heat.. and it was a great product, never went into protect. Look guys, this is a front stage and rear fill unit.. not really meant for Subs.. of course it's gonna overheat like that.
|
|
Review by
Sonicelectronix=amazing from Las Vegas, Nevada
| Overall |
|
| Durability |
|
| Value |
|
| Features |
|
| Design |
|
| Usability |
|
|
I have this amp pushing 4 Infinity Kappa 682.9cf, in my little 2 door truck. It sounds so loud in a little truck!! Excellent high's and mids! I don't know anybody with a better system! Also, have 2 10inch JL W3 subs to balance it out.
|
