Model no: HA-3  
Retail store typical on-sale price $2,800 or up

Direct out-of-the-factory price C$1,480 [US$ 1184]

Pure Class A single-ended tube + MOSFET + UTC OPT headphone amp with pre-out

This is our new headphone amplifier, use 2x 6SL7(default) / ECC35 / 5691 / 6SU7 / 6888 / 6SN7 / ECC32 / CV181/ 5692 and all compatibles. The following is the special features of this design

- Super quiet "hum-free" design, highest signal to noise ratio with darkest background performance

- All component-to-component and point-to-point hand wired

- Pure class A single-ended from input to output without -ve feedback

- Single stage tube and single stage MOSFET driving a pair of NOS UTC high grade output transformer, least possible parts with most transparent and micro dynamics sound

- High quality high precision instrumental grade components

- Sweet and smooth tube sound with high power MOSFET and 600ohm output transformer, can drive most of headphones to reasonable loudness level

- Pre-amplifier output included, for possible use of this unit as high-end tube pre-amplifier with transformer coupling

- Very smooth and sweet vocal or instrumental sound due to the ultimate high quality UTC output transformer

- XLR 4 pin socket for balanced headphone connection

- toggle switch for selection of 1/4" or 4pin XLR output

For this same low price,it will be extremely difficiult to find another products which can sounds better than this amplifier.

Upgrade options :

3 inputs version + IR remote volume control + $300  

Specifications

No. of inputs	1 set of RCA inputs
No. of outputs	1 set of 1/4" headphone output + 1 set of 4 pin XLR headphone output + 1 set of pre-amp output
Freq response	20Hz - 50Khz (-3db)
S/N	> 85 db
manufacturing	hand-wired point to point
Tubes used	2 x 6SL7

1 year parts and labor warranty under normal operation conditions