Description

FU-7 single-ended class A tube amplifier Product feature description 1: FU-7 is more powerful. The vocal interpretation is better, and you like it. The tone is similar to the 6P3. It should be more prominent. It forms its own unique character with the heroic sentiment, the gentle beauty of the beautiful, and the refreshing charm. The sound quality is not comparable to the sound quality of other electronic tubes. When the anode voltage is 480V and the anode current is 45mA, it not only has the strength and strength of KT88, but also has a level of low frequency than KT88. It has much better bounce power than KT88, good air feel, and rich hall sound. The intermediate frequency is better than EL34 and 6P14. The tooth tone and mouth shape are clearer, more transparent and beautiful. The high-end has the resolution power of a transistor machine, but it is softer, natural, pleasing to the ear than a transistor machine, with a wider sound field and accurate positioning, as if you are enjoying an elegant picture. 2: This product uses 10W output cattle Teflon version, special version, high performance, high index! And pair! Tube pairing, etc. are necessary procedures to ensure high sound quality! The output of the bull is the indicator of good sound and loudness of the amplifier, which is the key! The quality of the output transformer is directly related to the performance of the whole machine! We have good testing equipment and many years of winding experience. According to impedance matching and various impedance tests, we make this tube amplifier output transformer according to the characteristics of FU7, according to voltage adjustment and repeated tests! Product parameter Rated output power: standard 12W*2 super linear 10W*2 transistor 8W*2 Frequency response: 20Hz--25KHz Total harmonic distortion: 1% Input sensitivity: 500mV--2000mV Input impedance: 100KΩ Output impedance: 0-4Ω-8Ω Signal to noise ratio: 89dB Volume: 360mm*160mm*230mm Rectifier: 5Z3P, Pre-stage tube: Sugon 6H9C*2 Post-stage power tube: Soviet Union FU7/807*2 160W power supply 10W output version: stainless steel wire drawing upgrade imported Soviet Union 6H9C Soviet Union FU-7/807