Sunday, July 5, 2015


10M Master reference OCXO clock unit 

Master reference 10MHz OCXO clock unit for the Esoteric,dCS,Aurender.............

According to the user's feed back,
The sound quality of this 10M master clock unit is between Esoteric G01 & G02.

Offer 2 x 10M clock output ,
Ideal for the 2 x 10M switch with double run.
1 x 10M switch + DAC / Streamer is also fine.

Power request 110V or 220V.

Free 2 x1M clock cable.

OCXO Audio Grade Router
OCXO router is design for the top grade on line streaming source,
Much wider sound stage & rich detail with full of analog like,
If add an OCXO switch with OCXO router will be even more better.
It will be a new experience with on line streaming.

If your source is from the NAS,
Add an OCXO switch will be good enough.
OCXO router + OCXO switch or dual OCXO switch is batter but
not worth the costs.

As these products are the top grade equipment,
Better AC power cord & Lan cable for theses equipment is
needed for the sound quality.

D-Link DIR-879 AC1900 EXO Wi-Fi Router
12V/ 2A power supply via 1.3mm / 3.5mm DC jack

12V power supply & Clock unit,
120V or 220V AC input.
Power cord is not include,
Recommend to use Audio Grade power cord for this unit.
Offer  OCXO version only.

OCXO module is inside the chassis of LPSU,
Router need a clock cable & a 2.1mm DC cable connect from the  LPSU unit.
Free accessory

60cm 2.1mm DC power cable 

Offer 1 year warranty,
Burned by higher supply voltage or disassemble is not include.
Warranty stick broken is no warranty also.

Offer return within 1 month,
No return & no refund after 1 month.
Refund done after received the item,
Return postage is on buyer side.

US$999 including free shipping world wide.
Please email for the paypal invoice.

Audio Grade Switch


Double Run Connection is for 2 x TCXO switch or 2 x OCXO switch,
TCXO switch + OCXO switch is not recommend.
Single OCXO switch is better than  TCXO switch + OCXO switch.

User's feedback
The switch arrived yesterday - it sounds amazing!! 
Much better than I expected. 
How long will it take to fully burn in and warm up?

D-Link 8ports 10/100/1000Mbps Switch,
(10M external master clock input)

This switch without internal clock,
Accept 10M master clock input only.
This switch won't work without external clock input.
Compatible with Teac , Esoteric 10M master clock unit.

US$349 including free shipping world wide

D-Link 8ports 10/100/1000Mbps TCXO Switch

Modified with TCXO module & audio grade capacitor.

Power require 5V/ 1A min.,
Bundle with 5V/ 1A SMPS AC adapter.
Recommend to use 5V / 1.5A LPSU for the better sound quality.

Offer 1 year warranty,
Burned by higher supply voltage or disassemble is not include.
Warranty stick broken is no warranty also.

Offer return within 1 month,
No return & no refund after 1 month.
Refund done after received the item,
Return postage is on buyer side.

US$219 including free shipping world wide,
Switch + 1.2M Red Lan cable US$319 including Free shipping world wide.

Please email for the paypal invoice.


Recommend to use LPSU for the Switch ,
This 2 rails LPSU offer 2 rails on 5V or 9V or 12V output,
This is a very high quality LPSU  could improve the sound quality.

2 Rails Linear PSU for Switch & Router

OCXO Switch

User's feed back
FM 255 + FM 811

PPA OCXO Switch with wider sound stage,
More extension on high & low frequency both,
Much more solid body .

Compare with TCXO switch 

OCXO Switch Lite

OCXO module on the top of  Switch unit,
Power requirement is 5V / 3A ,
Supply voltage over 5.25V may burned this switch.

Please use 5V power supply only.

Offer one year warranty,
Burned by high voltage PSU is not include.

US$549 including free shipping world wide

Recommend to use Battery Adapter to powered this switch,
Powered by an audio grade Linear PSU is also fine.

8 ports GB Switch with LPSU + OCXO module unit

Switch unit,
No clock module inside.

LPSU & OCXO clock module unit

Very high quality Linear PSU with 2 rails 5V with true 1.6A output,
One rail is for OCXO module inside,
Another rail is 5V for Switch via 3pin XLR socket output.
Pin1 is ground, Pin3 is 5V ,Pin2 is N.C.

OCXO module is inside the chassis of LPSU,
Switch need a clock cable & a 2.1mm DC cable connect from the  LPSU unit.

Offer 1 year warranty,
Burned by higher supply voltage or disassemble is not include.
Warranty stick broken is no warranty also.

Offer return within 1 month,
No return & no refund after 1 month.
Refund done after received the item,
Return postage is on buyer side.

$USD799 including free shipping world wide

Please email for the paypal invoice.

Free  Accessory

60CM TZ YUN dc power cable,


TZ YUN Red Lan cable,
60cm $USD99,
1.2M $USD199.

Please email for the paypal invoice.

OCXO Gigabit Smart Managed Switch with 4 Gigabit RJ45/SFP COMBO ports

          D-Link DGS-1210-28 

This switch has 4 x clock on board, 

And modified with PPA OCXO module

D-Link 1210-20,
Same with 1210-28 but less width & ports

Internal SMPS is disable.
Accept 12V / 3A PSU via 2.1mm DC jack only.

Higher supply voltage may burned this switch,
Please use qualifier PSU for this switch.
PSU is not include and recommend to use an audio grade Linear PSU for the best sound quality.

DGS-1210-28 or DGS-1210-20 offer one year warranty,
Warranty is not include the higher supply voltage burned this switch .

US$799 including free world wide shipping.
Please email for the paypal invoice.

Special offer

PPA 12V / 3.2A Linear PSU for this switch.
Switch with LPSU & 1M DC cable is US$1090 including free shipping.


  1. This comment has been removed by a blog administrator.

  2. Hello Paul,
    Glad to know about these gadgets. I think use of Ethernet card is very low now a days. BTW can I buy these stuffs from target online store because I own a gift card of that store? If these gadgets are available on that store please let me know.

    Thanks for the share :)

  3. What is the difference between v2 and v3 series?

  4. Can I have your actual product model number?
    I browse about the web site of Zyxel, what is the series your company on sale?

  5. What is the difference between v2 and v3?

  6. v2 and v3 with different layout but with same sound quality


  7. Your message: Hi,i wish to know the audio grade switch of Zyxel. Since i am a customer in Hong Kong. Can I buy it and deliver to Hong Kong?If yes, how much its cost for shipping? Besides, what is the power input? Hong Kong is 220v ~240v is that also compatiable for using in Hong Kong?i dont mind to replace a suitable power plug for local use.
    Finally, which is the audio grade model and the difference between 5 port or 8 port ?
    Any dealer information in HK?

    1. Honk Kong user please contact drugaudio,

  8. What is the difference between GS 105S v2 and ES 105A v3?? What is the price of these??
    Which one is audio grade?

  9. Do you have the model GS105B v3??

  10. I really enjoyed reading your article. I found this as an informative and interesting post, so i think it is very useful and knowledgeable. I would like to thank you for the effort you have made in writing this article.

    1. Hi, Sarah
      Thanks for your comment.
      I have to write for all customers to be aware of the version of the switch if you are a audiophile listener. You may request an excellent sound quality that a high performance switch should do. So please choose a gigabit (GS) model together with v3 (OXOC module) or above.

  11. Buy products or sale your products at online shooping bazaar

  12. Dear Funny Mobile Video, million thanks

  13. Hi Paul,

    I just sent you a PP request for the switch. Would this piece or a similar piece be useful with your switch.



  14. Easy readable post with many important information. I must back again for something new. Keep up posting and share with us. Thanks for your great staff....
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  15. Bought a OCXO switch with LPSU. The delivery was fast in 4 days after placing order. Thank Paul for his guidance on how to setup the switch closer to the NAS to achieve better sound quality. I am amazed by the improved sound quality after installing the Switch.

  16. Dear Paul

    I am customer from Hong Kong. Can you give me some details on purchasing this switch.

    1. Hong Kong users please contact Drugs Audio,

  17. Hello I'm am very excited to receive the clock for 10 MHZ. Can you provide the tracking to my e-mail. Thanks, Steve

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  29. I am interested with the switch for worldwide sale. May I have the pay link?

  30. Dear Paul

    Please provide me the pay link.

    1. Please email to :

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