Pearl questions - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 4th March 2007, 11:27 AM   #1
lykkedk is offline lykkedk  Denmark
diyAudio Member
 
Join Date: Dec 2002
Location: Denmark, Fredericia
Send a message via MSN to lykkedk
Default Pearl quistion's

Hello.

I am waiting, to get my pcb's (from groupbuy), so i can start building my 'pearl'.
As usual i have some quistion's :
My setup is a BoSoZ (unbalanced), 2x125w 8ohm LeachAmp (from 2001), Sony X55ES CD, Dddac 12xtda1543 (1 tower) s/pdif torx and coax input and usb input, Mediacenter pc running freevo with .flac music files (entire collection), Thorens TD316 with IV tonearm, Grado prestige silver MM, with the following spec. :

Output 4 MV @ 3.54 CMV (45 degrees)
Induction 45 mH
DC-Resistance 475 Ohms
Weight 6 grams
Tracking Force 1,5 Grams

Here are my quistions :::
1. On the pearlboard, C14, C16 and R1, are uservalue, are they for normal MM pickup's, and what values should i use ?

2. I simply can't figure out, about the +9vdc from battery input, what is this for ?
__________________
/// got to catch up again ///
  Reply With Quote
Old 5th March 2007, 06:12 AM   #2
steenoe is offline steenoe  Denmark
diyAudio Member
 
steenoe's Avatar
 
Join Date: Mar 2004
Hi lykkedk, nice to see you are getting into vinyl

Question 1) those components are for loading your cartridge correctly. Best bet is if the usermanual of your cartridge states some values. Otherwise you will have to see if you can find out in the analouge department. I think that the avarage value of loading a cartridge is 47k, wich is done by R27.

Question 2) The 9V battery serves as an alternative 9V reference. Most people dont use it, but simply stick with the zener reference.
So you can just leave that out.

Steen
  Reply With Quote
Old 5th March 2007, 06:16 AM   #3
icewall is offline icewall  Sweden
diyAudio Member
 
Join Date: Jun 2005
Location: UmeŚ
Hello,

I'm wondering just the same things? Hope that i's ok to use your thread a bit, lykkedk.

How big transformer do I need for the PSU?

9V battery feed??

Choice of PU and "user value" components? What PU should I use for best performance wiht the Pearl? And how do I match it with the "user value" components??
I have an REGA turntable (bought it secondhand) and i think that it will be best to change the PU that is mounted on it now.

What should I take in considerartion when searching for a new PU that will match the Pearl and my turntable?
__________________
- nerver stop exploring -
  Reply With Quote
Old 5th March 2007, 05:01 PM   #4
lykkedk is offline lykkedk  Denmark
diyAudio Member
 
Join Date: Dec 2002
Location: Denmark, Fredericia
Send a message via MSN to lykkedk
Steenoe...

The only thing the papers from the cartridge tells me, is this:
DC-Resistance 475 Ohms
and that is immun for capacitive load !
__________________
/// got to catch up again ///
  Reply With Quote
Old 8th March 2007, 02:33 PM   #5
lykkedk is offline lykkedk  Denmark
diyAudio Member
 
Join Date: Dec 2002
Location: Denmark, Fredericia
Send a message via MSN to lykkedk
Link...

Halfway down this site, i am linking to, He is explaning about the cartridge i own, but i find it very hard to understand.

I allready, changed the cable from the tonearm, and i assume that the capacitance is around 150pF in my cable, which is around 1m long.

Maybe someone could explain, what solution i should give a try, i mean it must be the
last suggestion on the site, which is the best right ???
__________________
/// got to catch up again ///
  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
Pearl Phono questions Fitz Pass Labs 7 11th January 2009 02:36 PM
A couple of Pearl questions WindChill Pass Labs 3 8th June 2006 01:49 AM
Questions about Pearl..... Buhl Pass Labs 11 6th June 2005 01:16 PM
pearl phono questions rexrex Pass Labs 1 9th August 2004 05:55 AM
More Pearl questions Brownlow Pass Labs 4 29th September 2003 01:59 PM


New To Site? Need Help?

All times are GMT. The time now is 09:03 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