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Replica Sugden IA4 circuit Pure Class A 33W Single ended Amplifier Board

Name: Replica Sugden IA4 circuit Pure Class A 33W Single ended Amplifier Board
Brand: BRZ-hifi-audio
SKU: IA4
Price: 41.4 USD
Availability: InStock

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5.0 (1 Reviews)

3 Sold

~~$45.00~~ $41.40

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17/05/2026/00:00:00 - 31/05/2026/00:00:00

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Description

Features:

Completely engraved with Sugden's famous IA4 single ended Class A 33w OTL amplifier board, the sound is beautiful I can't get tired of listening for a long time.
.
● Each channel uses 2 ELNA FOR AUDIO 63v10000uF electrolyzers
● All new components.
● Each channel uses 2 brand new Sanken precision paired C2922 transistors (same as the original model).
● American Alpha Solder.
● Before shipping each finished board, distortion, noise, midpoint, amplification factor and other parameters must be tested.
● CNC machined all-aluminum alloy chassis, with exquisite appearance.
● CNC machined all-aluminum alloy chassis, with exquisite appearance.

Parameters:

● Power supply voltage: AC41v * 1 mono 200w reserve
● Output power: 33 watts Class A.
● Static current: 800-1000mA. Adjust the potentiometer to achieve a voltage of 800mV --1V across the 1 ohm/5 watt resistor. Rotate clockwise to the end and then adjust back
● Size: 238 * 73mm PCB 2mm thick, 70um thick copper, high current positive and negative wiring, cross-section is 4 times that of the original factory

List:

1 x Sugden IA4 circuit Amplifier board（This amplifier board is designed for mono sound. If you need stereo sound, you need to purchase a quantity of 2）

CUSTOMER REVIEWS

5.0 1 Reviews

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