Author Topic: MO #3: Jay's Audio LPS25VA[5V, 7V, 9V, 12V, 15V, 16V, 18V, 24V]  (Read 19875 times)

Offline alvin1118

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UPDATE: SPECIAL ORDER AVAILABLE, PLEASE CONTACT ME  ;D

Guys,

Again, THANK YOU for the strong supports!

The First and Second MO was a huge success, lot of happy users out there I believe enjoying the improved music reproduction with Jay's Audio LPS25VA!

With high demand and frequent inquiries of this LPS, i'd like to organize a 3rd MO.

Background
I was in the midst of building LPS for my coming LHLabs GEEK PULSE DAC as you can see from the link here. There are quite some efforts one need to spend to DIY a good LPS. It's just too much hassle to source for parts, chassis work, soldering, assembling, and testing; and yet, these hard-works may not warrant good performance compared to off the shelf product; arguably if you have good test equipment to refine the circuit, that’s of course another story. 

I always wanted a good LPS like Walt Jung Super Regulator. It is known to have very high bandwidth, ultra-low noise, fast load demands response and very good output stability by means of error close loop feedback compensation; all these are to be considered for a serious performance LPS in order to make your gear sound at the best.

The silver light at the end of the tunnel!
I made some efforts talking to my ex-audiophile components supplier (hohodiy) from Taiwan, I manage to link up with a supplier Jay’s Audio who is currently releasing a very well built Linear Power Supply equipped with loads of premiums parts, designed with referenced and improved Walt Jung Super Regulator! Very exciting indeed, isn’t it!

Jay's Audio is an Audiophile hifi manufacturer who builds premium product like CD-Pro2, High End ESS9018 DAC, Headphones Amp, and LPS. All products are equipped and built with premium parts, and more importantly, they are 100% tested with audiophile test equipment Agilent Instruments & Audio Precision software! These are costly gears can only be found in high end manufacturer in hifi market. (p/s: Light Hamonics Labs use these test equipment too!)

Highlight of the Jay’s Audio Ultra-Low Noise LPS25VA:
- AC Incoming: Schurter IEC, Japan Made EDK Switch
- AC Noise Filter: UK RIFA RFI Suppression Caps & Noise Filter     
- AC Transformer: Nuvotem Talema Encapsulated 25VA w/ Fast Acting Fuse Protection
- High Speed Rectifier with RIFA 0.1uf Bypass Caps
- Phillips BC 2200uf/25v x 4 Reservoir Caps, total of 8800uf !
- Phillips 1% Precision Resistors
- Panasonic FC 120uf, 390uf Decoupling Caps
- Mexico Made Inductors
- Analog Device OP177 for Voltage Error Feedback Compensation
- Toshiba Pass Power Transistor
- Two Simultaneously Driven Voltage Output Jacks 
- Mexico Made Multi-turns Variable Resistor for Fine Voltage Output Adjustment 
- Voltage Rating: 5VDC/3.5A, 12VDC/2A 
- Integrated Aluminium Heat-sink chassis, with 5mm thick (very) well designed front panel with Laser Marked texts

The circuit design of Jay's Audio LPS25VA is referenced and improved of the well-known Walt Jung Super Reg. The performance is first in the class I must say. Output voltage stays VERY stable with 0.01VDC tolerance despite I'm driving it almost at full load. It only gets a bit warm after a 48hrs of stress test. With such little money spent, I must say it’s the best bang of buck’s investment in hifi ever!

Action Pics:

Laser Etched Brand & Model, never fade! 7-Segment Display of Voltage Output w/ 2 decimal resolution


Dual Voltage Output Jacks, Minor Adj Knob (+- 10%)


Size Comparison with LHLabs Geek Out




Guaranteed Premium, Long Life Parts Inside!


Very well designed and neat layout !


Authentic Parts – High Grade Premium Talema 25VA Transformer


Prices:
S$168

What’s in the package:
1. The LPS25VA itself with thick foam package
2. 0.8m long of DC5.5 - 2.1 mm cable x 2pcs
3. NO power cord, I guess none of us would want it.

Warranty / RMA:
The production comes with 12 months warranty. All products will be QAQC prior shipped out. Buyers are to bear the return shipping cost to manufacture (Jay’s Audio) should the product is defective / DOA within the warranty period.

Order Instructions:
1.   Select Output Voltage Rating: 5VDC/3.5A, 9VDC/2.5A, 12VDC/2A , 18VDC/1.4A
2.   Made full payment to my DBS eSaving Accounts: CHEE HUI CHING 120-1-021962. International buyer by Paypal: alvin.chc@gmail.com
3.   Notify me by sms/whatsapp/viber once payment made @ +65 9768 46six2
4.   Update the MO List by posting new reply (if you’re from other forum (not xtremeplace) cannot post reply, I’ll post on your behalf)

Collection:

1.   Buyer are to arrange self-collection with me @ Blk 623 Woodlands Dr 52 S730623 lobby

I’m very confident that this will be the BEST LPS you could find in the market at this price range. I do not want to criticise some LPS available in the market, but with my experience in hifi hobby and DIY, Jay’s Audio LPS is unbeatable! I’ll anticipate the NORMAL selling price of this sort of performance LPS at range of S$300-350.

Thanks for reading guys.

Rgds,
Alvin Chee
+65 9768 46six2 sms/whatsapp/viber
« Last Edit: April 18, 2016, 08:48 by alvin1118 »

Offline alvin1118

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #1 on: December 25, 2014, 13:18 »
MASTER LIST

LPS25VA – 5V/3.5A
1. Alvin1118 - Paid
2. bitsnbytes (Chan) - Paid
3. durianlover88 - Paid
4. TopQuark - Paid
5. Quan Tran - Paid
6. Paul826 - Paid
7. Paul826 - Paid


LPS25VA – 9V/2.5A
1. alamakazam - Paid
2. HerryK - Paid (Customized 9VAC)

LPS25VA – 12V/2.0A
1. ylingf (Fred) - Paid
2. Norman - Paid
3. Hifijunky (Jim) - Paid
4. Hifijunky (Jim) - Paid
5. doctorjazz (Jack) - Paid
6. uncola (James Young) - Paid
7. vic2vic (Fabio) - Paid
8. DSlayerZX (Frank Sheng) - Paid
9. Sunny130y - Paid
10. mengmre - Paid
11. Ranza (Ha Tuan Anh) - Paid
12. bitsnbytes (Chan) - Paid
13. bitsnbytes (Chan) - Paid

14. Paul de Groot - Paid
15. cupofjoe (Daniel) - Paid
16. markrw (Mark Weissberger) - Paid
17. doofalb (Johann) - Paid
18. zerodeefex (Ravi Shah) - Paid
19. Chrisnew (chris) - Paid
20. xand - Paid
21. xand - Paid

22. Stephen McKenna - Paid
23. Shadowmoses - Paid
24. Cliff - Paid
25. Ming Andrew See - Paid
26. Marc Beigbeder - Paid
27. bjderf - Paid
28. nitinrochlani - Paid
29. upsguys88 - Paid
30. Azim - Paid
31. Boring - Paid
32. Quan Tran - Paid
33. Paul de Vos - Paid

LPS25VA – 15V/1.6A
1. Alucard - Paid
2. mystical (Bernard) 16vdc - Paid
3. Anonymous - Paid (Customized 16VAC)
4. Paul (wiz) - Paid

LPS25VA – 18V/1.4A
1.
2.
« Last Edit: April 07, 2015, 12:10 by alvin1118 »

Offline ylingf

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #2 on: December 26, 2014, 02:46 »
Please count me in for 12V PDU with 110V input.

Thank you!

Fred

Offline bnb

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #3 on: December 30, 2014, 12:36 »
Thanks for setting this up Alvin.  :)

Forgot to mention, I'll need the input at 230v (#12 & #13)

Just wondering, is it easy for user to switch jumpers to go back/forth between 110/230v?

Offline alvin1118

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #4 on: December 30, 2014, 12:39 »
Hi bnb, noted your request of input power @ 230VAC.
To switch btw 110/230v, some minor soldering is required :D

Offline Raines

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #5 on: December 30, 2014, 23:58 »
Hi Alvin,

I wrote to your whatsapp


I would like to know about the 2 outputs in the back.

Can i connect two 12V devices that together dont go beyond the 3,5 A?

Is there a chance of getting 2 outputs 1 of 5V and 1 of 12V with the 3,5 A total for both?

thanks

ricardo

Offline wizardofoz

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #6 on: December 31, 2014, 00:02 »
The amperage in case of the 12v is a total max 2A from either or both so 3.5A would not be possible, 5V is the only option at 3.5A


Secondly, no the outputs are in parallel and the supply as it is, is fixed at the specified output only, not mixed.




I have a pile of stuff that pushes out squiggly waveforms from smaller squiggly waveforms that sometimes come from 1's and 0's.
It's wonderful to behold as long as you don't let the magic smoke out.

Life is short! Enjoy the music while it plays, when it stops, there might be a chair for you...or  maybe not.

Offline Raines

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #7 on: December 31, 2014, 00:05 »
thanks!

so for the 12V i can connect two devices 12V that together dont go beyond the 2A right?

Where are they shipped from?


Offline wizardofoz

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #8 on: December 31, 2014, 01:29 »
thanks!

so for the 12V i can connect two devices 12V that together dont go beyond the 2A right?

Where are they shipped from?


2A max combined total


You will have to look in thread for supplier location or ask Alvin
I have a pile of stuff that pushes out squiggly waveforms from smaller squiggly waveforms that sometimes come from 1's and 0's.
It's wonderful to behold as long as you don't let the magic smoke out.

Life is short! Enjoy the music while it plays, when it stops, there might be a chair for you...or  maybe not.

Offline alvin1118

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #9 on: December 31, 2014, 09:36 »
Thks Paul for the explanation. Happy New Year to you and your family!

Offline bnb

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #10 on: January 02, 2015, 11:06 »
Alvin--I just pm'd you.

Again, thanks for setting this up. I did some quick math and the cost of DIY is not much cheaper with the expected quality parts and time to actually DIY...with the risk of burning down the flat ;D

regarding the 5V unit, my understanding is that it comes with the USB socket.

For those who are backers of the Pulse Xfint (aka Infinity) and are supposed to get the 2G cable free from LH, it might be good to have a 5v LPS. The power from your computer's USB may be noisy/inadequate (especially if you have multiple devices connected to its USB board, e.g., keyboard, external HD--these also draw current and emit noise).

Offline alvin1118

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #11 on: January 02, 2015, 11:48 »
Hi Paul, yes, Jay's Audio just improve and released the 5VDC model that will come with one DC5.5/2.1mm jack and one USB jack.

Offline wizardofoz

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #12 on: January 02, 2015, 13:21 »
I stand corrected then... no pics?


removed my reply as not to confuse
I have a pile of stuff that pushes out squiggly waveforms from smaller squiggly waveforms that sometimes come from 1's and 0's.
It's wonderful to behold as long as you don't let the magic smoke out.

Life is short! Enjoy the music while it plays, when it stops, there might be a chair for you...or  maybe not.

Offline alvin1118

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #13 on: January 02, 2015, 13:42 »


Fresh out from the oven !

Offline chrisnew

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Re: MO #3: Jay's Audio LPS25VA [5V, 9V, 12V, 18V]
« Reply #14 on: January 03, 2015, 09:41 »

MASTER LIST

LPS25VA – 5V/3.5A
1. Alvin1118 - Paid
2. bitsnbytes (Chan) - Paid
3.

LPS25VA – 9V/2.5A
1. alamakazam - Paid
2. HerryK - Paid (Customized 9VAC)
3.

LPS25VA – 12V/2.0A
1. ylingf (Fred) - Paid
2. Norman - Paid
3. Hifijunky (Jim) - Paid
4. Hifijunky (Jim) - Paid
5. doctorjazz (Jack) - Paid
6. uncola (James Young) - Paid
7. vic2vic (Fabio) - Paid
8. DSlayerZX (Frank Sheng) - Paid
9. Sunny130y - Paid
10. mengmre - Paid
11. Ranza (Ha Tuan Anh) - Paid
12. bitsnbytes (Chan) - Paid
13. bitsnbytes (Chan) - Paid
14. Paul de Groot - Paid
15. cupofjoe (Daniel) - Paid
16. markrw (Mark Weissberger) - Paid
17. doofalb (Johann) - Paid
18. zerodeefex (Ravi Shah) - Paid
19. Chrisnew (chris) - paid

LPS25VA – 15V/1.6A
1. Alucard - Paid
2. mystical (Bernard) 16vdc - Paid
3.

LPS25VA – 18V/1.4A
1.
2.
3.

« Last Edit: January 03, 2015, 09:52 by chrisnew »

 

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