Specification Brand : YTMJPQQJI BulletPoint : Preamps BulletPoint1 : Allows you to connect multiple speaker pairs to a single power amplifier or receiver. BulletPoint2 : It increases the impedance of the connected speaker pair to ensure that the overall impedance level presented to the amplifier is high enough to prevent damage to the amplifier. BulletPoint3 : It can support amplifiers with up to 100 watts of output power. BulletPoint4 : Fits into standard single-gang low-voltage junction boxes or mounting brackets. BulletPoint5 : Used to do the microphone pre-amplification is very good, very low noise and AC ripple, the output signal voltage greater than 1V or more, to promote the post-amplifier signal value is very strong. Color : One Color CompatibleDevices : Car ExternallyAssignedProductIdentifier : 7310083203865 ExternallyAssignedProductIdentifier1 : 889028123256 ExternallyAssignedProductIdentifier2 : 0889028123256 IncludedComponents : 2pcs Amplifier Module ItemName : 2 pcs 6Z4 Classic HiFi Series Vacuum Tube Amplifier ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : audio-component-preamplifiers Manufacturer : YTMJPQQJI Material : FR4 MaximumSupplyVoltage : 15 volts_of_direct_current MinimumSupplyVoltage : 3 volts_of_direct_current ModelName : LM386AMP-2P-G ModelNumber : YTMJPQQJI MountingType : Surface Mount NumberOfBoxes : 1 NumberOfChannels : 1 NumberOfItems : 1 OutputPower : 750 watts PackageTypeName : box PartNumber : YTMJPQQJI ProductDescription : Preamps 2 pcs 6Z4 Classic HIFI Series Vacuum Tube Amplifier Type: 6Z4 Quantity: Two tubes Maximum power per channel: No power supply ProductSiteLaunchDate : 2025-04-09T08:15:07.382Z Size : One Size StreetDate : 2020-05-04T00:00:01Z Style : 100W SupplierDeclaredDgHzRegulation : not_applicable SupplyCurrent : 150 milliamps UnitCount : 1 UnspscCode : 52161547 Voltage : 3 volts_of_direct_current WarrantyDescription : 1 Wattage : 20 watts