Amphion Two15 The Amphion Two15 studio loudspeaker, as with the Finnish company’s full line, has two core features that stand out in the studio monitor market: They are passive and they are sealed enclosures. Amphion chose the route of twin passive radiators on the rear to match the twin mid-low drivers on the front. Yeah, I know, they are passive monitors so calling the radiators passive might seem like a redundancy. The differentiator is that the front speakers get drive from an external amp, while the passive radiators reflect the motion of the front speakers, moving in when the mid-low drivers move out, and out when they move in, avoiding energy build-up inside the cabinet. In the Two15 ($2,000 each), two 5.25-inch speakers are active, along with a 1-inch titanium dome tweeter. Frequency response is rated at 44 Hz to 20 kHz +/- 3 dB with a “low” crossover point of 1,600 Hz.
Provided for the review was Amphion’s Amp500 power amp (two-channel, rated at 500 W a channel into 2 ohms, so it should provide around 250 W at the Two15’s rated 4 ohms, per channel, $1,800) and Amphion’s 2 x 2.5 m twisted pair speaker cables ($175). The whole system is about as simple as can be. The power amp has only an on/off switch on the front, a pair of input XLRs on the back with unique Argento Audio three-way binding posts for outputs and an IEC AC power jack.
I first set the monitors up on desktop on Primacoustic Recoil Stabilizers, but they performed better off the desktop on Ultimate Support MS-100B monitor stands (by the way, they go vertical, not horizontal). Over an extended listening period (weeks), I give the Two15s excellent marks in clarity, detail, tone, consistency across the frequency spectrum, off-axis response and dynamic performance. The only quibble I noted was with a few tracks I listen to that extend the soundstage outside the speakers on most top-notch systems; within the speakers’ physical placement, the Two15s had dandy depth, height and localization, but the image did not extend outwards left and right—a result that an Amphion rep suggested was due to the cabinets’ point-source nature.
There are a growing number of high-profile engineers adopting the Two15s. If your bank account can handle it, you might just add yourself to the list after an audition.