Specification Brand : FLYINSKY BulletPoint1 : Classic Circuit: The FLYINSKY PRT13A fully balanced tube preamplifier is designed with reference to the classic balance circuit of US ARC. BulletPoint2 : Super Quiet: Capacitor array is used for high-voltage power supply, which has lower internal resistance of power supply and stronger dynamic transient; At the same time, the high-voltage MOS power regulator is used together, which has the electronic tubes flavor and does not produce annoying noise of electronic tube rectification and voltage stabilization. BulletPoint3 : Super Quiet: Capacitor array is used for high-voltage power supply, which has lower internal resistance of power supply and stronger dynamic transient; At the same time, the high-voltage MOS power regulator is used together, which has the electronic tubes flavor and does not produce annoying noise of electronic tube rectification and voltage stabilization. BulletPoint4 : Audiophile-grade: Customized 50VA pure copper tape shielded R-Core transformer. The left and right channel DC filament is supplied with independent voltage stabilization, pure and free from crosstalk. Audiophile resistor+capacitor assembly, a new benchmark of electronic tube preamplifier. BulletPoint5 : All aluminum chassis, high-end sandblasting technology, beautiful and luxurious. Color : #911 ExternallyAssignedProductIdentifier : 4552302291212 ExternallyAssignedProductIdentifier1 : 0631846823876 ExternallyAssignedProductIdentifier2 : 631846823876 IncludedComponents : Tube preamplifier X 1; Remote controller X 1 (No Battery included) ItemName : FLYINSKY PRT13A-BAL Remote Version Stereo Balance Tube Preamplifier Vacuum Tube Preamp, 4 Channel, Audiophile-grade, Aluminum Chassis ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 20 centimeters ItemPackageDimensions_Width : 15 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : electronic-component-audio-amplifiers Manufacturer : FLYINSKY Material : lead Material1 : Aluminum Material2 : Copper MaximumSupplyVoltage : 1.8 volts MinimumSupplyVoltage : 1.8 volts ModelName : Wisoqurczu342akq ModelNumber : PRT13A MountingType : Freestanding NumberOfChannels : 4 NumberOfItems : 1 OutputPower : 100 watts PackageTypeName : Box PartNumber : TDA2822M-Socket ProductDescription : Introduction: The FLYINSKY PRT13A fully balanced tube preamplifier is designed with reference to the classic balance circuit of US ARC. Compared with common imitations, we have the following differences; ◆ Customized 50VA pure copper tape shielded R-Core transformer ◆ With volume remote control and signal source switching function, 2 XLR balanced inputs, 2 RCA single ended inputs, 1 XLR balanced output, 1 RCA single ended output, it is suitable for a wider range. ◆ Capacitor array is used for high-voltage power supply, which has lower internal resistance of power supply and stronger dynamic transient; At the same time, the high-voltage MOS power regulator is used together, which has the electronic tubes flavor and does not produce annoying noise of electronic tube rectification and voltage stabilization. ◆ The left and right channel DC filament is supplied with independent voltage stabilization, pure and free from crosstalk. ◆ Audiophile resistor+capacitor assembly, a new benchmark of electronic tube preamplifier. ◆ All aluminum chassis, high-end sandblasting technology, beautiful and luxurious. 6N11 is used as cathode output in the output stage, ECC82 common cathode is used for voltage amplification in the first stage, and constant current diode is used as cathode constant current in the first stage. The output of the machine can be balanced and single ended, and the input also can be balanced and single ended. Input voltage: AC 115V or 230V (For choose) Using tubes: 2 PCS Beijing 6N11 and 2 PCS ECC82 Input port: 2 Groups Balance XLR and 2 Groups Single ended RCA Ouput port: 1 Groups Balance XLR and 1 Groups Single ended RCA Size: 423mm*90mm*308mm (W*H*D) Not include the Size of knob and RCA protrusion. Package weight: About 7.7KG Input impedance: 470K Maximum input voltage: balanced 5VPP, single terminal 2.4VP. ◆ Support update with other better tubes, 6N11=6922=6DJ8 ECC82=12AU7 Package include: PRT-13A-BAL Full balance tube preamplifier X 1 Remote controller X 1 (No Battery included) NOTE : When input Single ended audio. only single ended output, No XLR output. We do not provide any cables.