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Audio Research SP4 Preamplifiers

Audio Research         SP4         Preamplifiers
alaAverage 5

5 reviews

Dec, 2017

alaTest has collected and analyzed 5 reviews of Audio Research SP4 Preamplifiers. The average rating for this product is 5.0/5, compared to an average rating of 4.1/5 for other Receivers & Amplifiers for all reviews.

On average, users rate this product 100/100.

Review analysis

(Based on 5 reviews)

User Reviews  


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Showing 1 - 5 of 5 Show Reviews: in English

Consumer review by: AudioBuff (

Audio Research SP4 Preamplifiers


I got a steal on this pristine condition ARC SP4 while shopping for a sub $500 option as a backup preamp. Not having experienced any ARC products before, I was completely amazed at the build quality, fit and finish considering that this was a product...

Dec, 2012

Consumer review by: O'Shag (

Audio Research SP4 Preamplifiers


I currently also own an Audio Research SP6E tube preamp, and Carver C-4000t preamp

Sep, 2004

Consumer review by: BertrandShaw (

Audio Research SP4 Preamplifiers


What can I add that others have not said of the fine SP series such as SP-4 and SP-7. The first ARC preamp I heard was in 1973, it was an SP-3 and it made "Goodbye Yellow Brick Road" sound infinitely better than it sounded with my Sansui receiver....

May, 2002

Consumer review by: Todd Roberts (

Audio Research SP4 Preamplifiers


Just a plain wonderful preamp. It takes a little getting used to because it will sound better than most anything you have heard. I like this solid state preamp more than most of Audio Researches Tube preamps. It's hard to explain, it just makes the...

Jun, 2001

Consumer review by: robert s. (

Audio Research SP4 Preamplifiers


There's not much to say, other than accolades and praise.

Jun, 2000