743D

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Manufacture:SPARK
Original price: JPY 328,000
Price: JPY 90,727 Sold Out
25-46223-08603-00
Shop: Osu shop
Arrival: 2025-05-26 10:58:37
The disposal price has been reduced. Member prices are not applicable. 2025/5/25 sales price 158,000 yen Maintained! Spark's 300B single amplifier brings out the feel of a vacuum tube. It has a slightly slender impression, but the feeling of extrusion is also sufficient, and I am attracted by its good stretch in the mid to high range. There are stains all over the exterior, and small scratches can be seen (Wang Zhan) Maintenance information: 2025.5.25 Maintained (SP terminal, volume, high nut replacement missing, screws added, ground pin and wire reattached, vacuum tube pin cleaning, vinyl tape removed. The bias check output sound was checked (output approx. 9W). 7308 → 6SN7 → 300B fixed bias) Accessories: power cord Main Specifications: Output: 10W x 2 THD: 2% Frequency Characteristics: 18Hz to 30kHz Input Sensitivity: 620mV Input Impedance: 100kΩ Output Impedance: 4Ω, 8Ω Input: RCA x 4 SNRatio: 85dB Usage Ball: 300B x 2, 7308 x 2, 6SN7 x 2, 5Z3P x 1 320W x 190H x 400Dmm 25kg 
  
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