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Seller Store looyotech
(786) 99.0%,
Location: wuhan
Ships to: US,
Item: 166227096351
Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money Back
Return policy details:
Supported Modes:—
Receiver Combo Features:—
Color:—
MPN:does not apply
Surround Sound Formats:—
Audio Outputs:Earmax Pro -EMP-Tube-Headphone Amplifier
Number of Outputs:Earmax Pro -EMP-Tube-Headphone Amplifier
Jolooyo:Jolooyo
Type:Earmax Pro -EMP-Tube-Headphone Amplifier
Audio Inputs:AUX,Earmax Pro -EMP-Tube-Headphone Amplifier
Number of Channels:Earmax Pro -EMP-Tube-Headphone Amplifier
Number of Inputs:Earmax Pro -EMP-Tube-Headphone Amplifier
Earmax Pro -EMP-Tube-Headphone Amplifier:Earmax Pro -EMP-Tube-Headphone Amplifier
Features:Digital
Power:—
1pc Earmax Pro -EMP-Tube-Headphone Amplifier Kit DIY DIY KIT Project： DIY kit: Contains the PCB and the components needed on the PCB, but does not include the power transformer . To complete this project, high level knowledge of electronics and rich experience in terms of soldering and testing are required. Due to time zone and language communication restrictions, we can only provide limited technical support, and you need to solve problems by yourself. Tech highlights： Compared with the commonly reproduction of EMP, we improved: 1、High Voltage：Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2、The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3、high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4、Using parallel AC heater power supply, the voltage distribution is more accurate, better than the original deign which is series voltage regulator. 5、all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6、PCB is Small with double-sided smt. 7、The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8、More cost-effective sound modification plan. PCB SIZE: 102X152X1.6mm Power requirements: heater volt: AC 6.3V,I≥1.2A Best:6.3VAC@2A high volt: AC100~260V,I≥0.04A best:120VAC@0.1A Product configuration： 1pc Earmax Pro -EMP-Tube-Headphone Amplifier Kit DIY Based on the well-tested board on the standard version kit, we verified all key points’ voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. Schematic & key point of debugging PCB comes with component parameters for easy installation. We only refer the schematic of the amplification part of the circuit. If you need full circuit parameter, please read the component value with the PCB by yourself; we do not provide additionally. please keep test point voltage close enough to it, +-20% is also permitted
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