Potential 600ohm LCR group buy - diyAudio
Go Back   Home > Forums > Commercial Sector > Group Buys

Group Buys Members group buys

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 17th December 2012, 08:51 PM   #1
Gluca is offline Gluca  Italy
diyAudio Member
 
Gluca's Avatar
 
Join Date: Nov 2004
Location: Back to Italy
Default Potential 600ohm LCR group buy

Gauging interest for 600ohm (pultec clone) LCR RIAA modules. Lundahl has 45mH and 1.8 H chokes on catalog and they are selling for 130euro/pair and you need to add a couple capacitors and few resistors. We can also run a short PCB batch to make things prettier and easier to build. I believe a target price would be 300euro/pair but maybe we can work on that if volumes go up.

Gianluca

Last edited by Gluca; 17th December 2012 at 09:07 PM.
  Reply With Quote
Old 17th December 2012, 08:59 PM   #2
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Sofia
Isn't life much easier with a 10k LCR?
  Reply With Quote
Old 17th December 2012, 09:07 PM   #3
Gluca is offline Gluca  Italy
diyAudio Member
 
Gluca's Avatar
 
Join Date: Nov 2004
Location: Back to Italy
yes it is ... only 10k commercial available module I am aware of is by Silk and it is said to have a roll off at higher freqs. we should be sourcing bigger chokes for a 10k unit but I guess we would be facing the same roll off.
  Reply With Quote
Old 18th December 2012, 12:25 AM   #4
diyAudio Member
 
d to the g's Avatar
 
Join Date: Aug 2006
Location: minimalopolis
Noguchi has a reasonably priced 600 ohm set I was considering on my next trip to Japan, but if someone had a line on a good 10k set at a decent price I could be interested.
  Reply With Quote
Old 18th December 2012, 10:28 AM   #5
Gluca is offline Gluca  Italy
diyAudio Member
 
Gluca's Avatar
 
Join Date: Nov 2004
Location: Back to Italy
Who is noguchi?
  Reply With Quote
Old 18th December 2012, 10:42 AM   #6
diyAudio Member
 
nicoch58's Avatar
 
Join Date: Oct 2004
non te lo diciamo
__________________
Sic58
  Reply With Quote
Old 18th December 2012, 10:55 AM   #7
diyAudio Member
 
Join Date: May 2007
Note, Dave Slagle Intactaudio/forum is the LCR-guru. He will tailor LCRs to suit anyones needs.

I have a pair of Lundahls and they have below acceptable tolerances. To be of use they need to be matched. They might have solved the problems now as it was a quite a few years since I bought them. I have a source who, anyway earlier, had matced units to sell.

The Tangos I had earlier had extremely tight tolerances.
  Reply With Quote
Old 18th December 2012, 12:38 PM   #8
Gluca is offline Gluca  Italy
diyAudio Member
 
Gluca's Avatar
 
Join Date: Nov 2004
Location: Back to Italy
Jacmusic sells matched LL chokes (3% tolerance) and as far as I know a new model is now available. I know about the many discussions on Dave's forum and i am pretty sure his irons would be' bullett proof but not sure that would be a proper andlarge group buy. I need to recheck what's the story with that 7.5k RIAA he was developing
  Reply With Quote
Old 18th December 2012, 01:11 PM   #9
diyAudio Member
 
Join Date: May 2007
Hello Gluca,
I guess Jacmusic has some connection with Diyparadiso in Belgium from where I have bought Lundahl. I think Lundahl made the LCRs for Diyparadiso at special order.

Do your really think 3% is good enough? Off course you can optimize with the caps and Rs but I would opt for 1%.
  Reply With Quote
Old 18th December 2012, 01:21 PM   #10
Gluca is offline Gluca  Italy
diyAudio Member
 
Gluca's Avatar
 
Join Date: Nov 2004
Location: Back to Italy
I need to run some sims on spice to see how tollerance comes into the game. I never worked hands on a LCR RIAA (thou I've built 2 LC 18 and 24 dB 600ohm xover for my biamped system) but i guess you need to fine tune R and C to get closer to the ideal curve.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Potential Group by for Balanced Input Buffers with Ingenius 1200 IC from THAT Corp. Tiff_Needle Group Buys 26 13th April 2014 10:43 AM
Potential Other Group Buys related to EUVLs F5X heinz1 Group Buys 456 2nd March 2014 01:16 PM
Potential group buy for F5X components ashaw Group Buys 267 16th January 2013 08:45 PM
Potential Group Buy - Aluminium enclosures TheShaman Siliconray Online Electronics Store 169 5th June 2012 03:34 AM
Potential Group Buy for TAD 4001 NYCOne Group Buys 1 24th December 2011 10:53 AM


New To Site? Need Help?

All times are GMT. The time now is 12:14 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2