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Specification
Brand : Willsenton
BulletPoint1 : Adopting a specially developed square power transformer for this machine.
BulletPoint10 :
BulletPoint2 : The circuit of this machine uses 4x 6922 vacuum tubes.
BulletPoint3 : Five sets of signal inputs (PHONO, CD, AUX1, AUX2, BALANG)
BulletPoint4 : High voltage power supply uses 2x6Z4 vacuum tubes for gallbladder rectification.High and low frequency adjustment functions, with a direct selection switch added.
BulletPoint5 : Infrared function remote.
BulletPoint6 :
BulletPoint7 :
BulletPoint8 :
BulletPoint9 :
Color : Silver
CompatibleDevices : Car 3.5mm Aux Port
ConnectorType1 : Auxiliary
ConnectorType2 : USB Type A
ControlMethod : push_button
ExternallyAssignedProductIdentifier : 9007468472951
ExternallyAssignedProductIdentifier1 : 0889743445039
ExternallyAssignedProductIdentifier2 : 889743445039
IncludedComponents : no
IncludedComponents1 : Remote Controller
IncludedComponents2 : Power Cord
IncludedComponents3 : User Manual
ItemName : Willsenton R-11 Pre-Amplifier Phono Stage EH6922 Tube Preamp MM/MC Balance (Silver)
ItemPackageDimensions_Height : 7 centimeters
ItemPackageDimensions_Length : 23 centimeters
ItemPackageDimensions_Width : 10 centimeters
ItemPackageQuantity : 1
ItemTypeKeyword : audio-component-phonograph-preamplifiers
Manufacturer : Willsenton
ModelNumber : Genericzagv9rd705-11
NumberOfBoxes : 1
NumberOfItems : 1
NumberOfPorts : 1
OutputWattage : 45 watts
PartNumber : Genericzagv9rd705-11
PowerPlugType : no_plug
ProductDescription :
Feature:
Adopting a specially developed square power transformer for this machine.
The circuit of this machine uses 4x 6922 vacuum tubes.
Equipped with PHONO input MC/MM switching function.
High voltage power supply uses 2 6Z4 vacuum tubes for gallbladder rectification.
High and low frequency adjustment functions, with a direct selection switch added.
Five sets of signal inputs (PHONO, CD, AUX1, AUX2, BALANG)
Infrared function remote control.
Equipped with five feedback adjustment levels, users can freely choose different feedback levels
To achieve diverse sound effects.
This machine has two sets of RCA outputs and - group balanced output functions.
Power on delay function (approximately 30 seconds)
Select imported A-L-P-S high-end potentiometer.


Specifications
Gain: 18dB
Frequency response: 15Hz-35KHz (-3DB)
Harmonic distortion: 0.9% (1KHz, weighted by A)
Signal to noise ratio: 93DB A weighted
Input sensitivity: 360mV
Input impedance RCA: 100KΩ
Input impedance balance: 47KΩ
Output impedance RCA: 5KΩ
Output impedance balance: 1KΩ
Vacuum tube: 6922EHx4, 6z4x2
Net weight: 17kg
Whole machine volume (WxDxH): 431 x 410 x 130 mm
Power supply voltage: 115V~230V+5% (50Hz)
Power consumption: 45W

PHONO specifications
Gain MM: 48dB
Gain MC: 72dB
Harmonic distortion: 0.06%, (1KHz, weighted by A)
RIAA bandwidth:+0.5dB (20Hz-20KHz)
Input sensitivity MM: 6mV
Input sensitivity MC: 0.5mV
Input impedance MM: 47K Ω (approximately)
Input impedance MC: 1202 (approximately)
Signal to noise ratio MM: 85dB A weighted
Signal to noise ratio MC: 75dB A weighted
ProductSiteLaunchDate : 2025-06-11T09:48:08.139Z
Size : US Plug
SpecificUsesForProduct : Car Aux Port that must have Music Audio Decoding Function
Style : Box X4 Phono Preamp+Music Visualizer
SupplierDeclaredDgHzRegulation : not_applicable
SupplierDeclaredHasProductIdentifierExemption : 1
UnitCount : 1
UnspscCode : 52161547
Voltage : 120 volts
WarrantyDescription : One Year Warranty
WarrantyType : Limited