ขาย Sophia Electric 91-01 300B Amplifiers This Sophia Electric amplifier was named after the famous Western Electric 91 amplifier. The original WE 91 amplifer used WE310 driver tube that is ultra expensive for what it is and difficult to find today for any meaningful quality production. Sophia Electric designers choose a driver tube to produce similar sonic characters that WE 91 is famous for. - Comes with Sophia Electric Princess 300B mesh plate tubes- Comes with upgraded and beautiful Sophia Electric 6SN7 tubes- Also comes with an extra set of original transformers for converting them into 220V. Currently they are 110V The Sophia Electric Model 91-01 300B mono amps are audiophile dream amps, they have great sonics top to bottom, bass articulation that is the best I've heard, and the SE 91-01 nails all of the nerdy audiophile things like soundstaging, imaging, sense of space, and transparency in such a beguiling way that even music lovers that don't give a rat's ass about audiophile-type sonics will appreciate its prowess. Jeff Day in Positive Feedback Price is 79,000 baht - Please look at all the pictures for your satisfaction.- All sales are final- 110/120 Volts SpecificationsDescription: Single-ended, tubed, monophonic power amplifier. Tube complement: one 6SN7, one 300B, one 5Z3PA rectifier. Maximum output power: 9W into 8 ohms at 1kHz (9.5dBW). Input impedance: 200k ohms. Input sensitivity for maximum output: 500mV. Output impedance: not specified. Distortion: 0.18% at 1kHz (level not specified). Frequency response: 12Hz–35kHz, ±3dB.Tuning range: FM, MW.- Dimensions: 12.75" (325mm) W by 7.25" (185mm) H by 9.5" (245mm) D. Weight: 35 lbs (15.9kg).- Design: 9 watts output single ended 300b amplifier per mono-block with no negative feedback. - OPT Transformers: Sophia Electric designed and in house made output transformers featuring mixed vintage (WE) core and modern high tech core for sound and ultra specifications. Pure OFC copper wires are being used. Potted. - Power transformers: Using the same high end core materials and winding method, one 220W power transformer per channel for AC consumption of 75w per channel x 2.- Input Sensitivity: 500 mv - Input Impedance: 200K - Frequency Range: 12 Hz – 35 KHz +/- 3 dB - Residual Noise/Hum: 2.0 mv- Distortion: -0.18% at 1 watts at 1KHz- Weight: 15.9kg per channel สนใจติดต่อ คุณหยา Contact Tel. กดเพื่อดูเบอร์โทร xxxxxx707 , กดเพื่อดูเบอร์โทร xxxxxx200อ่านเพิ่มเติม