Pyramid PR3000 Electronic Crossover? - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

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 21st January 2005, 08:18 PM   #1
diyAudio Member
 
Andersonix's Avatar
 
Join Date: Jan 2004
Location: Silicon Valley
Default Pyramid PR3000 Electronic Crossover?

Please don't laugh me off the forum: I have had pretty good luck with an electronic crossover from - gack! - Pyramid.... (I've also seen the same thing sold with a different name.)
One source (of many):
http://www.audioblowouts.com/Dj_Equi...id-PR3000-6491
I know, ratty stuff, to be sure. But here are its advantages: Usually found for about $55-$65. Totally flexible, once the resistors are changed to suit your needs for crossover frequencies. Three-way, 12dB per octave, stereo crossover. Ranges can overlap. Uses RCA inputs and outputs. No turn-on or switching thumps and pretty quiet, reliable operation overall. Power supply and connectors easily upgraded (easy to disassemble and reassemble). Cosmetically quite acceptable. Switches and pots feel OK. 110V. Rack-mounted.
Realities: What do you expect for $55? It uses a crude inline op-amp package, so no real hope of upgrading them (Please prove me wrong!). Five FIXED frequencies for each range: these will need to be changed by swapping out the frequency-setting resistors (but that's a good exercise in active filter design).
Bottom line: With some simple resistor swaps, can be a useful tool in evaluating crossover frequencies and drivers. Not for serious audiophiles, but not total cr@p, either...

Tosh
  Reply With Quote
Old 22nd January 2005, 04:28 AM   #2
diyAudio Member
 
sdclc126's Avatar
 
Join Date: Jan 2005
Location: San Diego, CA
Thanks for pointing out this site! I see some things on it I haven't found anywhere else, especially for the prices.

Everybody has to start somewhere, and for a biginner DIYer on a budget, sites like this can be a great place to start a system that can be built up and improved over time. It's also a great way to go up the learning curve without going broke if you make a mistake here and there. Thanks again!
__________________
Soft Dome
  Reply With Quote
Old 22nd January 2005, 05:50 AM   #3
diyAudio Member
 
Bill Fitzpatrick's Avatar
 
Join Date: Jun 2001
Location: Eugene, OR
Yeah, but for an extra $15 you get this:

http://www.audioblowouts.com/Dj_Equi...pro-PPCX2-6233
  Reply With Quote
Old 22nd January 2005, 03:58 PM   #4
diyAudio Member
 
sdclc126's Avatar
 
Join Date: Jan 2005
Location: San Diego, CA
Default Extra $15.00...

Even better! Same site, same point!
__________________
Soft Dome
  Reply With Quote
Old 2nd September 2011, 01:47 PM   #5
diyAudio Member
 
MartinV56's Avatar
 
Join Date: Nov 2006
I Take this old post about the pyramid PR 3000 electronic crossover or Pyle PYX3X . IMHO is very good compared to the cost benefit, use eight JRC4558 Sip, as said Andersonic is very flexible the resistors are changed to suit your needs for crossover frequencies.
The question is: is possible to replace the 4558 for better operational and if so which recommend?, Thanks
  Reply With Quote
Old 2nd September 2011, 03:38 PM   #6
diyAudio Member
 
Andersonix's Avatar
 
Join Date: Jan 2004
Location: Silicon Valley
This is quite the coincidence! And for two reasons:
1. I just replaced some resistors to set the low pass at 250Hz to start using it again on the bass only, after it has sat idle for years. And I also swapped all ~30 DC blocking caps for 22uF Elna Silmic, and also the PS diodes for soft recovery type.

2. Then the other day, by chance, I ran into a Sanyo LA6462S SIP-9 (yes, 9!) op amp (which is the goofy package this xo uses), so there are others out there (although I had stopped looking long ago). But I won't be swapping for this particular one, as the LA6462 8-SOIC is in a Marantz receiver I have, and it doesn't sound good....

There are SIP-8 adapters (from Brown Dog f.ex. ~$7?) one could use by adding a 'jumper,' but that runs the cost up quite a bit, as there are, what, 11 op amps in there?
Attached Files
File Type: pdf Sanyo LA6462M datasheet.pdf (108.6 KB, 3 views)
  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
Active bi-amp - Which electronic crossover? rhapsodee Multi-Way 42 17th December 2012 10:56 PM
Mod a Marchand XM9 Electronic Crossover slhijb Solid State 4 9th September 2008 12:06 PM
Electronic crossover JBLFAN Multi-Way 2 21st November 2004 07:16 AM
Electronic Crossover PWB BobK Multi-Way 19 30th September 2004 03:07 AM
Electronic crossover possible? Alvin Multi-Way 1 31st May 2004 09:59 AM


New To Site? Need Help?

All times are GMT. The time now is 02:22 PM.


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