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Details about  Xiang Sheng NEW 728A Vacuum Valve Tube Pre-Amplifier SV U

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Xiang Sheng NEW 728A Vacuum Valve Tube Pre-Amplifier SV U
Item Ended
Item condition:
May 13, 2012
US $255.00
$64.00 Standard Shipping from outside US | See details
International items may be subject to customs processing and additional charges.  help icon for Shipping - opens a layer
Item location:
Hong Kong, Hong Kong


eBay item number:
Seller assumes all responsibility for this listing.

Item specifics

New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
Channels: Stereo


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   XIANG SHENG 728A  Vacuum Valve Tube Pre-Amplifier

   Strong Driving Power, Vivid Sound, High Resolution, Accurate Locating

CLASS-A - 100% New XIANGSHENG 728A Pre-Amplifier

Wonderful stereo Pre-Amplifier, built with the best parts available

Powerful, Dynamic With Sweet  TUBE SOUND On Your Headphone !

Nice headphone must use a high Quality Amplifier!

The pre-amplifier improved based on famous Wada Shigeho's Style Electric circuit,

which was Introduced by Wada Shigeho in the early 1960s and gave an excellent performance.

Regarding the Wada Shigeho's Style Electric circuit,

it not only still keep the good features of Marantz7,

meanwhile it have superrior features in Dynamic,

High/lLow Frequency Response, Resolution and Signal to Noise Ratio as compared to Marantz7.

But apart from above features, it’s also not inferior to Marantz7 in Sound stage and airy feeling.

Adopt 4pcs paper in oil capacitors and German WIMA capacitors for coupling effect,

 make the sound warm and delicate.

Please note that color of Upgraded Version is different from the former one.

Don't miss you chance

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Input Power 

 AC100V-AC240V available 60Hz/50Hz

Output Tube 


Input Sensitivity 


Input impedance  


Output Impedance 

 600 ohm

Signal/Noise Ratio


Frequency Response 





 less than 0.01%



Input Jack  

 4 groups

Output Jack 

 2 groups

Size Dimension 

 W430mm × H80mm × D290mm




 8 kg

Packing Includes 

 Full Set Valve, 1.5m Power Cord & Brand new in original box

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   Shipping & Payment

 Please read the following section before proceed.

Shipping Price List

Economy Postage

GBP £20 / USD $32 / AUD $40

Around 8 weeks delivery

Standard Postage (Air-Mail)

GBP £40 / USD $64 / AUD $80

5 -10 days delivery

Express Postage

GBP £45 / USD $72 / AUD $90

3 -7 days delivery

Insurance & Handling  


Not Offered

<<<<< Attention to Economy Postage users >>>>


The economy shipping time (11-20 business day) is not accurate for surface mail shipping time, the surface mail will take 8-10 weeks to deliver instead of 11-20 business day.

If you choose to use surface mail (ebay's economy shipping), you agree with the 8-10 weeks shipping time. We will not partial refund or refund for shipping longer than 11-20 business day.

Economy Postage normally takes around 8 weeks to deliver once the parcel posted at Hong Kong Post Office, however in some cases the delivery time will take longer, most cases are because cargo shipment availability to the destination country or it may just because of the lengthy Customs inspection. Tracking number will provide for online tracing the parcel, you can see parcel's posted date and when the parcel is left our country.


- We ship to worldwide but shipping extra may applied to some countries.
- 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 PayPal email address once the parcel is sent.
- Economy Postage cannot apply to some countries due to the different country's post office maximum
  weight limit to Economy Postage parcels (10/20/30KGs limit).
 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.

  • We Guarantee 100% brand New.


  • 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 eBay checkout process. You can pay immediately or wait for an invoice that will send from us via eBay.

  • Please make sure your address in PayPal is correct for the shipment, if shipment is returned because of incorrect address, buyer will have to bear the returning shipping cost.

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   Return Policy

   Enjoy life with Music !!

  • 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.

  • Warranty: One year factory warranty + extra three years factory parts warranty.

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   About us

  Questions ? Need help ? ... Don't hesitate ! Contact us !

 is a reputable Hong Kong based importer & exporter,
specialize in wide range of electronic devices especially on tube amplifiers,
we are well connected with some famous brands: Yaqin, Music Angel XDSE, Bewitch, MHZS, AUDIOROMY etc.
We are trading as a worldwide wholesaler and retailer with excellent product knowledge;
our marketing and sales department promise to provide well-rounded customer service and
reliable after-sales service.
With the advanced technology and staying at the forefront of new innovation,
and the support of customers from Hong Kong and overseas,
we provide the best services to our customers to gain the highest satisfaction in on-line electronic Services.

Questions? Need help?

Contact us!

Enjoy life with music!

For more information, Feel free to contact us via the eBay messaging system. You can email us by clicking on the "Ask The Seller A Question" link on the eBay listing. All email inquiries will be answered as promptly as possible but please allow us 12-24 hours to respond.

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