NuPrime STA-9 $649 Generating 120Wpc and weighing just under 10.5 pounds, the STA-9 uses a Class A input circuit with a Class D output circuit. NuPrime’s website says it “is designed with enhanced even-order harmonic ...

NuForce STA200 $1299 Basic solid-state power amplifiers are not, due to their essential nature (boxes with parts inside), sexy objects that inspire a lot of audiophile lust. The STA200 will never be accused of looking ...

AVA Ultravalve$1999 According to Frank Van Alstine, the Ultravalve’s lineage is traceable to the Dynaco Stereo 70, which he denotes as its “great grandmother.” Although not as romantic sounding as the original, it is far ...

Odyssey Audio Khartago $795 Although the 130Wpc Odyssey Khartago solid-state stereo amp has been around for better than a decade, it was new to JV until amp- connoisseur Alon Wolf (of Magico) told him he ...

This turned out to be a twofer review—two for the price of one—shortly after I accepted the Ultravalve assignment and considered compatible loudspeakers. Speakers are a critical decision that can make or break an amplifier ...

Greatest Bargain at Rocky Mountain Audio Fest Frank Van Alstine has been making super-affordable high-performance gear for decades, but he might have outdone himself with the UltraValve, a 30Wpc stereo all-tube amplifier for just $1695. ...