Playback "Recommended" 2009
New Version with Upgraded Driver Design
The new version of the popular Grado SR325 headphones, the SR325si, not only has a different look, but it also improves on the sound of its critically acclaimed predecessor. The SR325i has an upgraded driver design, and John Grado has enlarged and improved the mass distribution in the metal housing. The way the SR325i's new driver and metal housing move air and react to sound vibrations are not less affected by transient distortions than ever before. It also has a new eight-conductor cable for superior signal transfer.
With the SR325si, you will notice improved control of the upper and lower range of the frequency spectrum, with both better supporting Grado's world renowned midrange.
"The Most Accurate Sounding 'Phones Tested"
The SR-325i's exhibit the best of Grado's manufacturing know-how by delivering performance approaching the level of the widely hailed HR series, while offering the affordability of an SR series headphone.
"I'm hooked on the SR-325i. Everything else I wear seems just a little bit pale and more 2-dimensional," raves Mark jensen in his July 7, 2007 online review for PodSqod. "At a street price of $295, the SR-325i is a bargain in the sometimes outrageously priced world of audiophile."
"The SR325s are easily the flattest, most accurate sounding phones tested," reports Loren Alldrin on the original model SR325 in Vol. 4, No. 6 of Pro Audio Review. "For critical monitoring, the Grados are hard to beat. Of all the phones tested, the SR325s were the only headphones I felt trustworthy enough for mixing."
"My Favorite!"
Non-resonant aluminum alloy is used in the make up of the metal driver housings. Grado also embarked on a complex treatment in order to increase the materials porosity. This ensures that the earphone chamber has no "ringing" which may obscure detail or add coloration. The resulting Headphone combines clean open highs, well defined mid range and vocal bass.
"Of all the Grado Prestige headphones I've heard, the SR325 is my favorite!" says John Gatski about the original model SR325 in Vol. 82, No. 6 of Audio magazine.
By incorporating closely matched driver elements within an .05 db tolerance to their reference, Grado achieves dramatically defined imaging and the highest resolution. An aluminum air chamber and driver housing improves frequency response for deeper bass and crisper highs. Ultra-High-Purity-Copper UHPLC is used in the voice coil and connecting cord for uncompromised signal integrity, which translates into superior detail and clarity.
These 'phones are also great for long-term listening. An improved headband spring provides ample comfort, allowing the listener to relax and enjoy the fine tonal spread and balance.
"Escape the Typical"
A 32 ohm impedance makes the 325's easy for portable MP3 and CD players to drive. But with its superior potential, the Grado SR-325i will reveal its ultimate performance capabilities when used with a high-quality headphone amplifier, like the Grado RA-1 or Creek OBH-11.
"I'd encourage anyone who wants to escape the typical, in yer face, cheap can sound to listen to these Grados," raves England's Hi-fi Choice magazine on the original model SR325. | 
