DCAudioDIY.com

DC Area Audio DIYer's Community
It is currently November 10th, 2024, 4:01 pm

View unanswered posts | View active topics


Board index » DCAudioDIY Main » General Discussion

All times are UTC - 5 hours [ DST ]



Post new topic Reply to topic  Page 6 of 8
  [ 76 posts ]  Go to page Previous  1 ... 3, 4, 5, 6, 7, 8  Next
  Print view Previous topic | Next topic 
Author Message
Grover Gardner
PostPosted: April 7th, 2021, 11:20 am 
Offline

Joined: June 4th, 2013, 2:39 pm
Posts: 497
Pelliott321 wrote:
A couple years ago I built a little SS phono preamp kit from DIYAUDIO that was designed to run on batteries. I was interested because I wanted to see the differences between 9 Volt batteries, SLA, and LiPo would sound like.
The 9 v batteries was horrible. The big SLA was a bit better and the LiPo was the best, probably because the internal resistance of the LiPo was the lowest.
The less than $100 board still was not very musical so I tried using a leftover shunt regulated PS from Twisted Pear that supplied mort than 10 times the required current and the sound was great.
In fact that phono preamp is living in a friends Uber system replacing a $6500 Ron Southerland phono and my friend could not be happier.

But....

My friend just cannot live with a cigar box phono preamp in his Uber-system so at his direction I am building for him an AN L3 phon preamp at almost $2k for him. Will see how this compares to the cigar box.


Auidiophiles are funny. ;-) I would be proud to have a cigar-box preamp that beat a $6500 one, and would make it the visual centerpiece of my system. ;-)
Top
 Profile  
 
Pelliott321
PostPosted: April 7th, 2021, 11:38 am 
Offline
User avatar

Joined: January 15th, 2015, 7:19 am
Posts: 1710
Location: Baltimore MD
When I get the cigar box back from my friend if he decides on the $2k AudioNote Kit I am building for him the I will have the cigar box bronzed.
I will need to go back and compare it to my present phono preamp
Top
 Profile  
 
TubeDriver
PostPosted: April 12th, 2021, 9:34 am 
Offline

Joined: March 12th, 2013, 11:12 am
Posts: 739
The non-ferrous, non-resonant cigar box might contribute to the great sound, you might find the same circuit in a big metal box sounds worse? :obscene-drinkingcheers:



Grover Gardner wrote:
Pelliott321 wrote:
A couple years ago I built a little SS phono preamp kit from DIYAUDIO that was designed to run on batteries. I was interested because I wanted to see the differences between 9 Volt batteries, SLA, and LiPo would sound like.
The 9 v batteries was horrible. The big SLA was a bit better and the LiPo was the best, probably because the internal resistance of the LiPo was the lowest.
The less than $100 board still was not very musical so I tried using a leftover shunt regulated PS from Twisted Pear that supplied mort than 10 times the required current and the sound was great.
In fact that phono preamp is living in a friends Uber system replacing a $6500 Ron Southerland phono and my friend could not be happier.

But....

My friend just cannot live with a cigar box phono preamp in his Uber-system so at his direction I am building for him an AN L3 phon preamp at almost $2k for him. Will see how this compares to the cigar box.


Auidiophiles are funny. ;-) I would be proud to have a cigar-box preamp that beat a $6500 one, and would make it the visual centerpiece of my system. ;-)
Top
 Profile  
 
Pelliott321
PostPosted: April 12th, 2021, 10:16 am 
Offline
User avatar

Joined: January 15th, 2015, 7:19 am
Posts: 1710
Location: Baltimore MD
Gary Dews of BorderPatrol only uses copper in his chassis (even in his budget DAC) at great expense and difficulty in getting them made.
He would use wood if allowed by UL.
Top
 Profile  
 
Cogito
PostPosted: April 26th, 2021, 11:46 am 
Offline

Joined: July 17th, 2016, 6:24 am
Posts: 1127
Pelliott321 wrote:
Shashi
If you get the TS Slider you will want to get a larger power transformer. Bruce believes you only need a power supply large enough to run the circuit.
A larger transformer will really improve things.


Thanks Paul for the suggestion.
Kit came with 200V 50VA transformer. I ordered 2x 200V 100VA transformer. Shall connect both 200V windings in parallel.
Top
 Profile  
 
Roscoe Primrose
PostPosted: April 26th, 2021, 2:10 pm 
Offline
Site Admin
User avatar

Joined: February 28th, 2013, 10:38 am
Posts: 1707
Cogito wrote:
I ordered 2x 200V 100VA transformer. Shall connect both 200V windings in parallel.


Or use one for each channel ;) Of course, the kit probably didn't come with extra rectifiers etc....

Roscoe

_________________
I can explain it to you, but I can’t understand it for you.
Top
 Profile  
 
Pelliott321
PostPosted: April 26th, 2021, 4:13 pm 
Offline
User avatar

Joined: January 15th, 2015, 7:19 am
Posts: 1710
Location: Baltimore MD
I would go with what Roscoe suggests. It would be a stiffer PS.
Of course, you could go full monty and use choke input, but that would require a higher voltage
Top
 Profile  
 
Cogito
PostPosted: May 7th, 2024, 7:01 pm 
Offline

Joined: July 17th, 2016, 6:24 am
Posts: 1127
Cogito wrote:
Pelliott321 wrote:
Shashi
If you get the TS Slider you will want to get a larger power transformer. Bruce believes you only need a power supply large enough to run the circuit.
A larger transformer will really improve things.


Thanks Paul for the suggestion.
Kit came with 200V 50VA transformer. I ordered 2x 200V 100VA transformer. Shall connect both 200V windings in parallel.


Can't believe it's been three years since I built this preamp. I took a break from audio for the last 2+ years.

When I built this preamp, hated it so much, put it in the storage room and forgot about it. It was very analytical.

Two days ago, wanted it to give it another try before getting rid of it. Let it burn for about 3 hours before listening again.

This TS Slider preamp is very good. Compared to the TS GG preamp I was using, this is a huge improvement. Different class. Need to compare it with some quality preamps.
Top
 Profile  
 
Cogito
PostPosted: May 13th, 2024, 1:48 pm 
Offline

Joined: July 17th, 2016, 6:24 am
Posts: 1127
Coupling caps going into this preamp.

Attachment:
20240513_133037.jpg
20240513_133037.jpg [ 357.7 KiB | Viewed 4429 times ]


Top
 Profile  
 
SoundMods
PostPosted: May 13th, 2024, 1:53 pm 
Offline
User avatar

Joined: July 24th, 2015, 4:17 pm
Posts: 1752
Location: Parkville, Maryland
Cogito wrote:
Coupling caps going into this preamp.

Attachment:
20240513_133037.jpg

Finally -- someone in this group gets it. Yes they're expensive -- but it is a one-time purchase. :thumbup: :obscene-drinkingcheers:

_________________
Walt
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 6 of 8
  [ 76 posts ]  Go to page Previous  1 ... 3, 4, 5, 6, 7, 8  Next

Board index » DCAudioDIY Main » General Discussion

All times are UTC - 5 hours [ DST ]

Who is online

Users browsing this forum: No registered users and 18 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Switch to mobile style
Powered by phpBB® Forum Software © phpBB Group