| Vacuum Tube Hi-end Tube Headphone Pre-Amplifier: | Headphone Pre-Amplifier |
|---|
Quick Details
Specifications
XiangSheng 708B Vacuum Tube Hi-end Tube Headphone Pre-Amplifier BK 110v-230v
Parameter:
input impedance: 100kohm
total hamonic Distortion: Less than 0.01%
Frequeney responses: 20hz-30khz+/-1DB
Maximum output:500mw*2(32 ohm)
300mw*2(300 ohm)
250mW*2(600 ohm)
Signal to noise Ratio:89db
Line input: 2
Headphone Jacks:1
Line Out:1
Supply Votage:AC 100V -AC 240V available 60Hz/50Hz
Tubes:6N3+6N11*2+6z4
working enviroment:Temperature:5 TO 40 dgree
Humidity:35% to 80%
size: 180*80*270mm
Net Weight:2.5kg
Product Description
The plane,which was based on the improvement of 708B,elegant appearance,good skills.
1)Using 8mm thick aluminum alloy plating siliver pannel,the High technology wrinkled sheet steel box section ,the metal knob.
2)High -grade RCA terminal with gold plating,Sturdy output terminal with gold plating,reducing the contact resistance
3)Power supply socket inserted into the three-line,easy upgrading power lines
4)Taiwan-made W.L potentiometer for volume control,German red polypropylene capacitive coupling via mkp.
5)High Voltage part use tube for rectifying ,two large importting reservoirs filter.
6)Adopt no negative feedback circuits form.
7)Impoved reference classiclines,refer to famous Japan Wada Shigeho's Style improved Electric circuit,use 6N3 tube and for preamplification,6N11 for output.
Description of the silkscreen of panel
1)Power switch :POWER-press the button once the power comes on.Press the button again,the power goes off.
2)Power indicator
3)Headphone/Earphone output port:
4)Volume Control:Volume -turning the Volume control clockwise increases the volume level,turning the Volume control counter-clockwise decreases the volume level.
5)Source selector:Thurning the knod to selec the source.
6)Signal input port:Stereo signal input (CD/DVD)
7)Singanl input port:Stereo signal input(AUX)
8)Signal output port:Stereo signal output connect to power amplifier
9)Voltage switch:the voltage could be designed to switchable (when the users do not ask for switchable voltage,the switch would be useless)
10)AC Power input (AC input)
ATTENTION ! ! !
- We ship to worldwide .
- Items will send out within 2-3 working days once payment is confirmed.
- We will properly pack each item with sufficient protections to ensure it reaches you in the same
condition as when it left our warehouse.
- Online Tracking number will forward to your email address once the parcel is sent.
International Buyers – Please Note:
- Import duties, taxes and charges are not included in the item price or shipping charges. These charges
are the buyer's responsibility.
- These charges are normally collected by the delivering freight (shipping) company or when you pick the
item up – do not confuse them for additional shipping charges.
Important
WE ACCEPT :
Payment must be made within seven days after the auction ended, we can extend the payment period if buyer contacted us with a good explanation, otherwise non-paid item strike will issue to buyer's account.
Please follow the Alibaba checkout process. You can pay immediately .
Please make sure your address in Alibaba is correct for the shipment, if shipment is returned because of incorrect address, buyer will have to bear the returning shipping cost.
By bidding on this item,you agree to the following return Policy.
If you received an item that is not what you expected, please contact us to return the item for refund before leaving a feedback, we will do our absolute best to work out a solution to your satisfaction
Defective item will be reported to courier for insurance claim, please contact us and do not throw away the packaging before damage report, if you want to repair by yourself for small damages, we can send factory parts for faster process.
Cosmetic issues are not covered.
Shipping, Handling and Insurance charges are not refundable.
If a returned item is not defective and has been tampered with, misused or damaged, it will be returned to Customer.
Parameter:
input impedance: 100kohm
total hamonic Distortion: Less than 0.01%
Frequeney responses: 20hz-30khz+/-1DB
Maximum output:500mw*2(32 ohm)
300mw*2(300 ohm)
250mW*2(600 ohm)
Signal to noise Ratio:89db
Line input: 2
Headphone Jacks:1
Line Out:1
Supply Votage:AC 100V -AC 240V available 60Hz/50Hz
Tubes:6N3+6N11*2+6z4
working enviroment:Temperature:5 TO 40 dgree
Humidity:35% to 80%
size: 180*80*270mm
Net Weight:2.5kg
Product Description
The plane,which was based on the improvement of 708B,elegant appearance,good skills.
1)Using 8mm thick aluminum alloy plating siliver pannel,the High technology wrinkled sheet steel box section ,the metal knob.
2)High -grade RCA terminal with gold plating,Sturdy output terminal with gold plating,reducing the contact resistance
3)Power supply socket inserted into the three-line,easy upgrading power lines
4)Taiwan-made W.L potentiometer for volume control,German red polypropylene capacitive coupling via mkp.
5)High Voltage part use tube for rectifying ,two large importting reservoirs filter.
6)Adopt no negative feedback circuits form.
7)Impoved reference classiclines,refer to famous Japan Wada Shigeho's Style improved Electric circuit,use 6N3 tube and for preamplification,6N11 for output.
Description of the silkscreen of panel
1)Power switch :POWER-press the button once the power comes on.Press the button again,the power goes off.
2)Power indicator
3)Headphone/Earphone output port:
4)Volume Control:Volume -turning the Volume control clockwise increases the volume level,turning the Volume control counter-clockwise decreases the volume level.
5)Source selector:Thurning the knod to selec the source.
6)Signal input port:Stereo signal input (CD/DVD)
7)Singanl input port:Stereo signal input(AUX)
8)Signal output port:Stereo signal output connect to power amplifier
9)Voltage switch:the voltage could be designed to switchable (when the users do not ask for switchable voltage,the switch would be useless)
10)AC Power input (AC input)
ATTENTION ! ! !
- We ship to worldwide .
- Items will send out within 2-3 working days once payment is confirmed.
- We will properly pack each item with sufficient protections to ensure it reaches you in the same
condition as when it left our warehouse.
- Online Tracking number will forward to your email address once the parcel is sent.
International Buyers – Please Note:
- Import duties, taxes and charges are not included in the item price or shipping charges. These charges
are the buyer's responsibility.
- These charges are normally collected by the delivering freight (shipping) company or when you pick the
item up – do not confuse them for additional shipping charges.
Important
WE ACCEPT :
Payment must be made within seven days after the auction ended, we can extend the payment period if buyer contacted us with a good explanation, otherwise non-paid item strike will issue to buyer's account.
Please follow the Alibaba checkout process. You can pay immediately .
Please make sure your address in Alibaba is correct for the shipment, if shipment is returned because of incorrect address, buyer will have to bear the returning shipping cost.
By bidding on this item,you agree to the following return Policy.
If you received an item that is not what you expected, please contact us to return the item for refund before leaving a feedback, we will do our absolute best to work out a solution to your satisfaction
Defective item will be reported to courier for insurance claim, please contact us and do not throw away the packaging before damage report, if you want to repair by yourself for small damages, we can send factory parts for faster process.
Cosmetic issues are not covered.
Shipping, Handling and Insurance charges are not refundable.
If a returned item is not defective and has been tampered with, misused or damaged, it will be returned to Customer.