EXPIRED For Sale Yamamoto Sound Craft HA-02 Headphone Amplifier

Further Information

Every Yamamoto amplifier is hand built. One is currently listed on Singapore EBay for $AUD $1900. Add GST, customs & shipping and you're looking at AUD $2400.


The HA-02 wires it as a feedback-less pentode which benefits from ultra-quality in-house-wound transformers adapted from the accoladed A-08S. 50-ohm headphone and 8-ohm speaker secondaries connect to the front-mounted ¼" socket and rear-mounted speaker binding posts. Delivering 300mW @ 50 ohms at the former and a mere 240mW @ 8 ohms at the latter, a speaker driven from the HA-02 will have to be efficient and used in the extreme near field, say in a desk top PC setup. The HA-02 ships with an Audio-Technica designed interconnect terminated on the source end with a mini stereo jack. Hello iPod or equivalent.

Gain of this headphone amp is 9.5dB into 50 ohms, 1.5dB into 8. Frequency response is 30-21,000Hz and 45-17,000Hz respectively. Noise at the ¼" terminal is given as 100 microvolts. Everything about this device spells high class and the promise of noise-free, high resolution, ultra musical thermionic headphone addiction.


Sporting the firm's signature resin-impregnated Japanese Cherry top and Ebony corner columns doubling as footer standoffs and upscale custom parts below deck, the HA-02 sports two NOS Western Electric WE408As under a gold-plated decor bridge.

https://6moons.com/audioreviews/yamamoto4/ha02.html https:/userweb.117.ne.jp/y-s/HA-02-new-e.html


I'm happy to demonstrate with either Sennheiser HD800s or Audeze LC3 cans, or bring your own headphones.


I have the original packaging. Shipping is available at the purchasers cost.