ISO REGEN launch thread! (product web page up; photos, etc.)

[elan120]

19 hours ago, scan80269 said:

Another option is to insert an additional discrete regulator between the DC input jack and the SU-1 board +5V input.  This regulator will then accept 7V DC from the LPS-1 and generate 5V to feed the SU-1.  With good soldering skills, a 3-pin discrete regulator plus an input capacitor should not be too hard to add to the SU-1.

 

LPS-1 @7V ==> additional linear regulator @5V out ==> SU-1 board

 

If you want this regulator to have very low noise spec, the Belleson or Sparko Labs discrete regulators can be considered.  It would then make sense to also replace the LD1086 LDO regulator on the SU-1 board, otherwise you can end up with an ultra-low noise regulator feeding a higher noise regulator downstream.

 

Come to think of it, the above sounds a bit over the top to me, but I guess far more extreme measures have been done for the sake of achieving better sound...

 

 

Been thinking about the same idea for the last few days, after getting the Canare 4S6 cable in shipment last night, this is what I end up with.  Using 7V input from LPS-1 with LT3045 set at 5V soldered to the connector pins directly at the end of the cable.

[elan120]

Hi @T-Bone, I don't mind at all.  This dongle thing was a result of seeing some posts asking about using one LPS-1 to power both ISORegen and SU-1 together, and since I have this LT3045 set for 5V not doing anything at the moment, I soldered the 4S6 cable to the input and have the output soldered directly to the 5V input connector pins, and then set the LPS-1 output to 7V to show as another option for people planning on using a Y-connector from single LPS-1 to both ISORegen and SU-1, but prefer using 7V instead of 5V.  This mod turned out improving the overall SQ quite a bit, so even though I will be powering ISORegen and SU-1 using separate LPS-1, I will still be keeping this mod.

 

I don't have more pictures at the moment, but can take more if you need it still when I get home from work later this evening...in the meantime, I just placed an order for more of this regulator since I also planning to try comparing LT3045 against Belleson 3.3V (what I currently have), but they will take couple weeks to get here, so if you want, I can wire one up for you to try for a few days before you order any parts to make one yourself.  Send me an email if you are interested.

[elan120]

9 minutes ago, gstew said:

Or if you are handy with soldering (as I remember you are), you can make up an adapter cable with a low-ish drop-out 5v regulator at the output end and run the LPS-1 in 7v mode. I have done this with a Dexa, a Belleson, and an Acko AKR75 into an SDTran384 SD Card Player & Allo.com Kali reclockers with always good, sometime very good results. For your 5.25v application, the Belleson or one of the TPS7A4700 or LT3042 add-on regulators would be best... the Dexa specifies a 2v dropout and the ADM7151 regulator that can be used in the AKR75 maxes at 5.1v.

 

PM me if you need assistance on this.

 

Greg in Mississippi 

 

Exactly what I did with mine, except I am using LT3045, but same idea.