Cart 2 india

Specification
Brand : Fanmusic
BulletPoint1 : Fully discrete NFCA also create wonderful amp:A90 Discrete uses fully discrete components to redesign the NFCA (Nested F eedback Composite Amplifier) module.4 built-in NFCA-Discrete modules which each them uses 39 transistors build up fully balanced structure. The optimized Voltage Current hybrid feedback architecture along with UHGF (UItra High Gain Feedback) technology provide excellent DC and AC performance. Benefiting from the new design, the output capability is stronger than ever,which allows the amp driving low impedance headphones even more effortlessly.
BulletPoint2 : 2 Gain settings :The A90 Discrete has two gain options, which enough to cover a wide variety of headphones: low gain to drive the IEMs with high sensitivity, and high gain to drive fullsized over-ears.Combined with the 0.2uVrms ultra-low noise,even sensitive IEMs will not suffer from any noise.
BulletPoint3 : Ground Loop Noise Terminator:Ground loop noise may be encountered when multiple devices are used in combination. A90 Discrete adds a GND/LIFT switch to solve this problem. When in normal use,set it to GND; and when ground loop noise is encountered,switch it to LIFT. Then the ground loop noise is eliminated.
BulletPoint4 : A Headphone Amp, also a Preamp:The A90 Discrete is not only able to drive the headphones but also served as a preamp.When it is in preamp mode,you can get the same high performance as the headphone amp mode, and the 20ohm SE and 40ohm balanced output impedance are widely suitable for various power amplifiers. Also support the output from all at the same time .
BulletPoint5 : The A90 Discrete provide you 1 * XLR and 1 * RCA stereo inputs, but when it working with a Ext90, they could provide totally 4 X XLR and 2 X RCA stereo inputs. The A90 Discrete is equipped with a 12V Trigger interface, which can be set to active control (Trigger out) or passive control (Trigger in) . With only one easy-to-obtain 3. 5mm to3.5mm cable, the A90 Discrete can be turned on and off synchronously with other devices equipped with a 12V Trigger interface.
BulletPoint6 : Customize volume control:A90 Discrete uses a R2R volume control composed of relays and resistor networks, brings the advantages of precise control, longevity, complete channel balanced and remote control.
BulletPoint7 : A90 Discrete can set to memorizes the output volume or the input volume.Memorizing the output volume means the A90 Discrete will memorized volume settings of the PRE, HPA,PRE+HPA mode respectively, and automatically restore to the last used volume when same output is selected next time.
Color : Silver
ComponentType : Battery
ConnectivityTechnology : USB
ExternallyAssignedProductIdentifier1 : 098185886151
ExternallyAssignedProductIdentifier2 : 0098185886151
Hazmat1 : LITHIUM ION BATTERIES CONTAINED IN EQUIPMENT
Hazmat10 : EG_SmallLithiumIonBatteryInEquipment
Hazmat11 : ES_SmallLithiumIonBatteryInEquipment
Hazmat12 : FR_SmallLithiumIonBatteryInEquipment
Hazmat13 : GB_SmallLithiumIonBatteryInEquipment
Hazmat14 : IN_SmallLithiumIonBatteryInEquipment
Hazmat15 : IT_SmallLithiumIonBatteryInEquipment
Hazmat16 : JP_SmallLithiumIonBatteryInEquipment
Hazmat17 : MX_SmallLithiumIonBatteryInEquipment
Hazmat18 : NL_SmallLithiumIonBatteryInEquipment
Hazmat19 : PL_SmallLithiumIonBatteryInEquipment
Hazmat2 : UN3481
Hazmat20 : SA_SmallLithiumIonBatteryInEquipment
Hazmat21 : SE_SmallLithiumIonBatteryInEquipment
Hazmat22 : SG_SmallLithiumIonBatteryInEquipment
Hazmat23 : TR_SmallLithiumIonBatteryInEquipment
Hazmat24 : US_SmallLithiumIonBatteryInEquipment
Hazmat25 : 9
Hazmat3 : II
Hazmat4 : AE_SmallLithiumIonBatteryInEquipment
Hazmat5 : AU_SmallLithiumIonBatteryInEquipment
Hazmat6 : BR_SmallLithiumIonBatteryInEquipment
Hazmat7 : CA_SmallLithiumIonBatteryInEquipment
Hazmat8 : CN_SmallLithiumIonBatteryInEquipment
Hazmat9 : DE_SmallLithiumIonBatteryInEquipment
IncludedComponents : A90 Discrete
ItemName : Topping A90 Discrete Fully Discrete Balanced Headphone AMP NFCA 4-Pin-XLR 4.4 Balanced 6.35mm SE Output Pre-Amplifier 2 * 9800mW 2 Gain Settings Headphone AMP Headphone Amplifier(Black)
ItemPackageDimensions_Height : 19.1 centimeters
ItemPackageDimensions_Length : 3.2 centimeters
ItemPackageDimensions_Width : 10 centimeters
ItemPackageQuantity : 1
ItemTypeKeyword : headphone-amps
Manufacturer : TOPPING
MemoryStorageCapacity : 4 GB
ModelNumber : HA12
NumberOfBoxes : 1
NumberOfItems : 100
PartNumber : A90 Discrete
ProductDescription : Specifications:
A90 Discrete Headphone Amplifier specifications:
tHD+ N@1kHz (A-wt):
SE IN/SE OUT:<0.000065%@Output=500mW (32Ω)/<0.000055%@Output=80mW (300Ω)
BAL IN/SE OUT :<0.000080%@Output=500mW (32Ω)/<0.000060%@Output=80mW (300Ω)
SE IN/BAL OUT:<0.000065%@Output=2000mW (32Ω)/<0.000055%@Output=320mW (300Ω)
BAL IN/BAL OUT:<0.000080%@Output=500mW (32Ω)/<0.000060%@Output=320mW (300Ω)

THD@20-20kHz (90kBW)
SE IN/SE OUT:<0.00030%@Output=500mW (32Ω) /<0.00025%@Output= 80mW (300Ω)
BAL IN/SE OUT :<0.00030%@Output= 500mW (32Ω) /<0.00025%@Output= 80mW (300Ω)
SE IN/BAL OUT:<0.00060%@Output=2000mW (32Ω)/<0.00025%@Output=320mW (300Ω)
BAL IN/BAL OUT:<0.00060%@Output=2000mW (32Ω) /<0.00025%@Output=320mW (300Ω)

SNR@MAX OUT 1kHz (A-wt)
SE IN/SE OUT:141dB
BAL IN/SE OUT :137dB
SE IN/BAL OUT:145dB
BAL IN/BAL OUT:138dB

Dynamic Range@1kHz (A-wt)
SE IN/SE OUT:141dB
BAL IN/SE OUT :137dB
SE IN/BAL OUT:145dB
BAL IN/BAL OUT:138dB

Frequency Response
SE IN/SE OUT:20Hz-40kHz ( ± 0.1dB)
BAL IN/SE OUT :20Hz-40kHz ( ± 0.1dB)
SE IN/BAL OUT:20Hz-40kHz ( ± 0.1dB)
BAL IN/BAL OUT:20Hz-40kHz ( ± 0.1dB)

Output Level
SE IN/SE OUT:25VPP
BAL IN/SE OUT :25VPP
SE IN/BAL OUT:49VPP
BAL IN/BAL OUT:49VPP

AP measured noiselevel @A-wt
SE IN/SE OUT:<0.7uVrms @G=L /<1.1uVrms @G=H
BAL IN/SE OUT :<0.7uVrms @G=L /<1.1uVrms @G=H
SE IN/BAL OUT:<1.0uVrms @G=L /<1.8uVrms @G=H
BAL IN/BAL OUT:<1.0uVrms @G=L /<1.8uVrms @G=H

Actual noise level*@A-wt
SE IN/SE OUT:<0.2uVrms @G=L /<0.6uVrms @G=H
BAL IN/SE OUT :<0.2uVrms @G=L /<0.6uVrms @G=H
SE IN/BAL OUT:<0.7uVrms @G=L /<1.6uVrms @G=H
BAL IN/BAL OUT:<0.7uVrms @G=L /
<1.6uVrms @G=H

Channel Crosstalk@1kHz
SE IN/SE OUT:-107dB
BAL IN/SE OUT :-105dB
SE IN/BAL OUT:-116dB
BAL IN/BAL OUT:-113dB

Input sensitivity
SE IN/SE OUT:9.1Vrms @G=L / 3.0Vrms @G=H
BAL IN/SE OUT :9.3Vrms @G=L / 3.0Vrms @G=H
SE IN/BAL OUT:9.1Vrms @G=L / 3.0Vrms @G=H
BAL IN/BAL OUT:9.3Vrms @G=L / 3.0Vrms @G=H

Gain
SE IN/SE OUT:0dB @G=L / 9.5dB @G=H
BAL IN/SE OUT : -0.2dB @G=L / 9.3dB @G=H
SE IN/BAL OUT: 6.0dB @G=L / 15.5dB @G=H
BAL IN/BAL OUT: 5.8dB @G=L / 15.3dB @G=H

Output Impedance
SE IN/SE OUT:<0.1Ω
BAL IN/SE OUT :<0.1Ω
SE IN/BAL OUT:<0.2Ω
BAL IN/BAL OUT:<0.2Ω

Output Power
SE IN/SE OUT&BAL IN/SE OUT :
3300mW x2 @16Ω THD+N<0. 1%
2000mW x 2 @32Ω THD+N<0. 1%
1100mW x 2 @64Ω THD+N<0.1%
250mW x 2 @300Ω THD+N<0.1%

SE IN/BAL OUT&BAL IN/BAL OUT:
9800mW x2 @16Ω THD+N<0. 1%
6700mW x 2 @32Ω THD+N<0.1%
4000mW x 2 @64Ω THD+N<0. 1%
1000mW x 2 @300Ω THD+N<0.1%
500mW x 2 @600Ω THD+N<0.1%
Load Impedance：>8Ω

*Note: The actual noise level is obtained by boosting the noise of A90 Discrete by 40dB using a low noise amplifier in front of the APx555B then dividing the measured noise by 100 times.
ProductSiteLaunchDate : 2022-06-24T08:59:54.752Z
SupplierDeclaredDgHzRegulation : not_applicable
SupplierDeclaredHasProductIdentifierExemption : 1
SupportedStandards : DXD
UnspscCode : 52161500
WarrantyDescription : 1 year warranty