Refurbished - Infinity 475a-RB (LS-475a-RB) (Factory Refurbished) 468W Max,

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Infinity Reference 475a R/B Image 1 — Infinity Reference 475a R/B

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Product highlights

Reference Series Class AB 4-Channel Amplifier • 75W x 4 chan. @ 4 ohm • 90W x 4 chan. @ 2 ohm • 117W x 4 chan. Max • MOSFET power supply • Gold-plated preamp RCA outputs

Learn more about the LS-475a-RB

Product Highlights

Reference Series Class AB 4-Channel Amplifier • 75W x 4 chan. @ 4 ohm • 90W x 4 chan. @ 2 ohm • 117W x 4 chan. Max • MOSFET power supply • Gold-plated preamp RCA outputs

Description

Authorized dealer

Item Condition - Refurbished:

A manufacturer refurbished product will function like new with all parts inspected or replaced as necessary. There may be slight cosmetic issues such as scratches or similar. See the description for additional details.

Reference Series Class AB 4-Channel Amplifier
RMS Power Rating:

4 ohm: 75 watts x 4 chan.
2 ohm: 90 watts x 4 chan.
Bridged, 4 ohm: 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.
Factory refurbished with full 1-year exchange warranty. The warranty on the refurbished model is actually better than the new one. Within 1-year we will exchange the amplifier if a defect occurs, and with the new model it is only for the first 30 days.

Specifications & Details

Power Specifications - Full Range Channels

RMS Power @ 4 ohms

75 watts x 4 channel

RMS Power @ 2 ohms

90 watts x 4 channel

RMS Power @ 1 ohm

Not Stable

Bridged RMS Power

180 watts x 2 channel

Amplifier Specifications

Amplifier Class

A/B

Number of Channels

4-Channel

Total Peak Power Output

468 watts

Total RMS Power Output

360 watts

Maximum Input Gauge Size

4 AWG

Minimum Impedance Unbridged

2 ohm

Minimum Impedance Bridged

4 ohms

THD at Rated RMS Power

Speaker Level Inputs

Preamp Outputs

1 pair

Built-in Crossover

Low-Pass (LP)
High-Pass (HP)

High-Pass Crossover Frequency

32 - 320 Hz

Low-Pass Crossover Frequency

32 - 320 Hz

Signal-to-Noise Ratio

85 dB

Bass Boost

0 - 6 dB

Remote bass/level controller

Fuse Rating

35A x 2

Warranty and Return Policy

Parts Warranty Duration

1 year

Labor Warranty Duration

1 year

Warranty Provider

Sonic Electronix

Customer Ratings & Reviews

Infinity Reference 475a R/B thumbnail image

Overall rating distribution

5 star		50%
4 star		50%
3 star		0%
2 star		0%
1 star		0%

Filter by Star Rating

Show only Verified Purchases

By feature average rating

Durability		4.3
Value		5
Features		4.8
Design		3.8
Usability		4.8

Customer Reviews

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Awesome Amp!

This amp was a great deal through Sonic. I have owned for 6 months and it has been trouble free.

By newbwrx on November 15, 2009

3 found this helpful

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Infinity Reference 475a. Good Value!

Nice amp. 75 watts 4 channel. Has good crisp sound up to max. No distortion. I'm about to buy an Infinity sub amp and 12" woofer. I like the way the amp puts out blue light to dress up my trunk. I would recommend this amp!

By DAshley33 on February 17, 2009

3 found this helpful

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Great Buy!!

I have had this amp for around 6 months now and to tell you the truth i was a little sceptical about buying a refurbished amp but no problems yet. i have had it in 3 vehicles now a 92 gmc 1500, a 03 honda civic ex, and now in a 99 honda civic si. in the 03 civic i totaled it (flipped 5 times) luckily no one was hurt (i was the only one involved lol) and the amp still plays like a dream althouth it does get a lil hot but no big deal plays very clean and clear nice improvement even with stock speakers.

By Patrick on March 11, 2009

2 found this helpful

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Nice Amp. Refurb is okay.

This amp works great powering 4 Infinity Kappa 5 1/4" speakers. Being a refurb, it looks a little rough. The snap off/on cover on mine was held in place with hot glue as a couple of the connectors were broken. Can't see it but I wasn't very impressed with that. Great price though if you don't care about cosmetics.

By Alex on December 28, 2008

2 found this helpful

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Add-ons

Belva BAK44

Complete 4-Channel CCA 4 Gauge Amp Kit with RCA Cables and Speaker Wire

(61)

$49.99

List price $79.99

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Infinity Reference 475a R/B

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This item has been discontinued

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