Skip to product information
  • Yamamoto Sound Craft HA-03 Tube Headphone amp
  • Yamamoto Sound Craft HA-03 Tube Headphone amp
  • Yamamoto Sound Craft HA-03 Tube Headphone amp

Yamamoto Sound Craft
HA-03 Tube Headphone amp

Product code: ha03
Regular price ¥157,300 円
Regular price ¥157,300 円 Sale price ¥157,300 円
Sale Sold out
Tax included. Shipping calculated at checkout.
Power-supply voltage

Customer Reviews

Based on 1 review Write a review

Blight and vivid tone color

Beautiful tube sound from both headphones and speakers

Description

Selected high quality parts and design. HA-03 is unique designed tube amplifier for speakers as well as headphones. HA-03 uses same output circuit both for speakers and for headphones. The amplified circuit is Siemens vintage tube C3m, is pentode connected one stage amplify. Quiet simple structure. Non feedback, separate power supply for screen grid circuit and plate circuit.
Headphone side is 50ohms, 1.4W x2, speaker side is 8ohms, 1W output. 1W is small output, but considering powerful tube driving power, it is enough power for bookshelf speakers, except quiet low efficient speakers. Also it corresponds wide range impedance for headphones. almost any kind of headphones could be easy to be driven. Actual ideal impedance range seems be from 16ohms to 200ohms.

Insulated rigid wooden chassis and high quality parts..


HIgh insulated, high strength phenolic resin reinforced wood brought high quality sound as well. Power transformer is big R core transformer, selected resistor and other parts from the world.
Spec
Vacuum Tube C3m (vintage vacuum tube by German Siemens) 2pcs.
Maximum output 1.4W+1.4W (50ohms/headphones) 1W+1W (8ohms/speakers)
Frequency Response 35Hz~17.5kHz(-3dB)
Residual Noise 57μV(A filter)
Input impedance 50kohmsInput selectable:2
Dimensions 156(W)330(D)165(H)mm
Weight 5.6�s
Review
Impression of the sound is smooth, but clear shape of sound, blight and vivid tone color. Piano touch is clear and richness.
Excellent bass range for jazz. Sound field is huge, high density and excellent quality of feeling. I usedSENNHEISER HD-650,
Genuine custom made product of exceptional quality.

Yamamoto Sound Craft HA-03 Tube Headphone amp

Regular price ¥157,300 円
Regular price ¥157,300 円 Sale price ¥157,300 円
Sale Sold out
Tax included.