DIY KIT NEED TO SOLDER IT PCB is blue .Thank you NO SCHEMATIC AND INSTRUCTION (components values have been marked on the PCB) COME WITH THE ITEM. MX50 SE version is designed to improve the new version of the classic with thousands of users on the basis of the fifth edition of the MX50. Lower distortion, better control and resolving power. A single differential input, single-ended voltage amplifier stage, three-stage inverted Darlington output.
The MX50 SE version is a new design version based on the classic MX50 fifth edition with thousands of users. Lower distortion, better control and resolution. Single differential input, single-ended voltage amplification stage, three-phase inverted Darlington output stage. Small tube with PHILI-PS production, the output stage using imported KTB817, KTD1047. ST, EVOX production CBB capacitor. KEMET, TDK monolithic capacitors. Japan imported electrolytic capacitors All resistors are made of genuine genuine metal film resistance copper feet. Supports voltage DC: + -15V to + -45V AC double 12V-double 32V rectifier can be obtained. Power 15-100W, 8 ohms. PCB Area 76 * 73 mm Version Number V7 (MX50SE) Installation Note: The 649 669 must be installed on a supplied heatsink. After the installation is complete, no adjustment is required, the quiescent current is about 30MA per tube. This version does not require a fly line. Only need to install two large tube on the radiator can be. A set of two PCBs. Contains all the components on the picture, with insulating pieces. This package is small profit sales, not bargain. I designed the MX50 L series AMP are a variety of instruments tested performance is excellent. In the online circulation of imitation MX50 or music fax XX50 components used and PCB versions are different, buy friends please note the contrast. The current MX50 version number is V7 (MX50SE) Test Data: Test Equipment: Audio Precision 2 Frequency response = 20HZ-25K HZ -0.2DB
THD+N=0.002% 20hz-20KHZ 10W RMS 8 OHM
FFT harmonic diagram:
test data , test equipment:DSCOPE SERIES 3
test result: frequency 20HZ- 20 K HZ - 0.2 DB
24000 HZ FFT FOR 10W OUTPUT:
All the transistors are used PHILI-PS KEC licensed original authentic. Quality Assurance.