Update: November 4th 2014, “EPA-007x” added to their website. Available in late November.
New dual-XLR+TRS headphone jacks. 0.5W increase in power consumption. A few other small improvements, see “Internals Comparison” further in post.
Phasemation makes almost everything, cartridges, CD transport, hybrid passive volume attenuators, receivers, phono/power/headphone amplifiers, two a DACs, a D2D converter, and a rubidium external clock (discontinued, alas). Their flagship monoblock tube amplifier is costs USD ~25,000 per channel.
About them (http://www.phasemation.com/):
The EPA-007 headphone amplifier (MSRP: 132 300 Japanese yen; though it can be had in Japan and on websites for around ¥95,220) (EPA-007x MSRP: 140 000 JPY)
EPA-007x update (other than the model's name, nothing has changed here):
|Format||Dual mono drive headphone amplifier|
|Entry||1 line analog (RCA / XLR)|
|Output||XLR / 6.3mm stereo standard jack (×2)|
|Frequency characteristic||20 ~ 100kHz -0.5dB|
|Corresponding headphone impedance||16 ~ 600Ω|
|Residual noise||50μV or less|
|Crosstalk||90dB or more|
|Power consumption||2W (115 or 220VAC, 50/60 Hz)|
|Maximum Dimensions (mm)||220 (width) × 57 (height) × 234 (depth)|
|Accessories||AC power cable|
Available accessories include Acoustic-Revive dual (balanced) TRS male to 3-pin XLR female adapter and a HD800 balanced cable terminated with dual TRS male, on the amplifier's product page. (Or buy the updated EPA-007x which features balanced XLR, dual-3pin outputs)
Internals comparison (credits to Yaluen; thank you!)
“According to Phase Tech [blog], the EPA-007x features an improved power supply section over the EPA-007. If you look at the specs listed for them, you'll notice that the EPA-007 has a power consumption rating of 1.5W whereas the EPA-007x is rated at 2W.”
“As you can see, the only differences are the rectifier diodes and the RC network associated with the power supply, no significant redesign. Did a little digging and it looks like the diodes in the EPA-007 are Hitachi V19 while in the EPA-007x are ROHM SCS206AG. Both are well-suited to the application. Spec-wise an incremental upgrade but audibility is most likely next to negligible. A bit of A/Bing and I certainly can't hear a noticeable difference. Both are fantastic amps.”
Here's a video review of the EPA-007 in Japanese language
Tracking: EPA-007 was first announced in February 2011
Edited by devouringone3 - 1/5/16 at 9:28pm