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The Audio Note Kassai is quite an amazing 300B set amp that can drive speakers of moderate sensitivity, making it quite versatile. This amp comes with passive volume controls for left and right channel. With moderately sensitive speakers, I found the Kassai works best with a good active pre-amp such as an M7.
Âm thanh hi-end Audionote kassai silver 300B chính hãng
The Kassai is actually a cheaper version of the Audio note Japan Kegon (Not to be confused with the latest UK version with the same name).
The term silver refers to the silver coupling capacitor used in this and other Kondo designed amps. This capacitor is different from the silver paper in oil variety associated with the UK range of amps.
The Audio Note Kassai was warmed up for one hour at 5.7W into 8 ohms, one- third of its rated maximum power. It ran typically hot for a tube amplifier. Its input impedance measured 76k ohms. Its output impedance ranged between 2.9 ohms and 3.1 ohms, depending on load and frequency. As is usually the case with such a high input impedance, I would expect the Audio Note’s frequency response to be affected strongly by different loudspeaker loads.
The Kassai’s voltage gain into 8 ohms was a high 33dB. Unweighted S/N ratio measured 78dB over a bandwidth of 22Hz—22kHz (ref. 1W into 8 ohms), 76dB over a wider 10Hz—S0OkHz bandwidth. A-weighted, it measured 90dB. DC offset measured 1.4mV in the left channel, 2.5mV in the right. The amplifier inverted polarity.
|Hãng sản xuất||AUDIO NOTE|
|Trở kháng (ohm)||100.000 Ω|
|Công suất âm thanh (W)||22|
|Nguồn điện||120V ~ 240V 50Hz|
|Công suất tiêu thụ (W)||135|
|Kích thước (mm)||195(h) x 205(w) x 500(d)|
|Trọng lượng (kg)||20|
>>Có thể bạn quan tâm thêm sản phẩm hàng đầu của Kondo: Pre-amplifiers Hi-end Audio Note Kondo G1000i