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Rounded vertical edges on the front avoiding edge effects
allied with two dual triodes tubes in output stage
FILTERING:• The passive filter :It has been completely redesigned with different connection frequencies and the best components currently available on the market
Eight new shielded high power precision inductors are used in the regulation and a new ultra high precision capacitor type is used in the feedback loop
In comparison
Sugden HA-4 Headphone amp Featured Rounded vertical edges on theThis is my demo. Only one at this price. Masterclass HA 4 Headphone Pre amplifier The HA 4 is not only a state of the art class A headphone amplifier, it can also be used as a compact high end pre amplifier. The design is similar to our top of the range Sapphire DAP 800 and will drive any dynamic headphone. Featuring Sugden VCV circuit and coupled to a pure class A zero feedback mosfet output stage. The HA 4 is unconditionally load stable with a