The speakers work on either AC power or DC battery operation, so listeners can take them along to a BBQ tailgater or picnic. Safety is ensured through the aluminum alloy cabinets designed to dissipate heat from the amplifiers. Each speaker measures 6.5 by 10.5 by 7.6 inches (W x H x D) and weighs 9.92 pounds.

What 's in the Box
Two AD570 speakers, speaker cable, user's manual.

That this design hasn't been copied by every speaker manufacturer is a mystery to me. The AV570 is a unique combination of ultra clean sound quality, high output for size, and rugged construction. Buy 'em for your bookshelf, home theater, computer, or ANY application that calls for accurate and powerful sound reproduction in a compact package. I use mine as an acoustic guitar amplifier. I use an adaptor to go from my guitar's 1/4" mono jack to the AV570's RCA input. It sounds better than guitar amps that are twice as expensive and 10 times as large.

Highly recommended (IF the Advent AV570 is the same product as my Acoustic Research 570s)!


AV-570's are Great Speakers !   June 25, 2003
 12 out of 12 found this review helpful

I had a pair of these for a couple of years that were recently stolen. These puppies kick ... . I used them with a portable Sony CD/FM player on big exhibit set-ups in So. Cal. These speakers would fill a whole hall in the Anahiem convention center with wonderfully clear music. They are awesome and everyone who heard them would comment and want some. The only draw back I found is the wieght. They are small but they are heavy. The volume, tone and base controls are a must.I bought some Bose roommates to replace them but they do not compare. I just ordered another pair of 570's and I can't wait to hook them up to the 40 gig Nomad Jukebox 3 that I have since picked up. You won't belive the sound that cranks out of these babies.


Pearl of the industry   April 10, 2006
 11 out of 12 found this review helpful

I've had these speakers for a over 10 years now, and I must say they are among the best-sounding and versatile speakers I've ever owned (and I own LOTS of speakers).

I've used them for lots of things -- playing background music at patio parties, as a PA for a vocal concert in a garage (at a party), as STAGE MONITORS in concerts (which they are great for, because they angle upward when placed on the ground). As computer speakers (they are mag shielded to prevent distortion in your CRT).

They are clear, tight, loud, and reliable. They are a bit heavy though. I lug them around in their original box, and it requires two hands to carry them around. I have friends who have them who lug them in a tote bag, but it's a bit heavy for one-hand toting, banging against your leg.

There's something really special about the sound of these speakers, though. They don't sound boxy at all, and the bass is amazing for their size. Their tone controls work great.

I wouldn't pause before buying a pair if you want really great sound from your iPod. I've never heard small speakers sound this good.



2 Pair 15 years old and still sound perfect! 5+ Stars   June 23, 2006
 8 out of 8 found this review helpful

I bought 2 sets of these in 1991 and still use both pair everyday.
The base is very low and clean. The highs are crisp and clear. It sounds as if there is a sub-woofer. They are heavy but very durable. I have traveled with them to Europe and around the U.S. One pair I use with an old IBM ThinkPad as a kitchen kiosk to play yahoo radio. I can blast them and hear them great out on the deck. I have used them often and play my music loud. (korn, filter, rap, rock, classical) They still sound perfect and have no rattles or distortion after 15 years. If the new speakers are manufactured they same way as they were 15 years ago then I would recommend them highly. In fact I am considering buying two more pair while they are still available. They can be used for mp3 players, tv, computer, cdplayer, DVD players..etc