Home » Sponsored » Pi Speakers » New 3Pi build
New 3Pi build [message #86096] Sun, 10 September 2017 17:03 Go to next message
tubemax  is currently offline tubemax
Messages: 21
Registered: February 2012
Location: Netherlands
Chancellor
So I finally got some time and spare money to start collecting parts for 3Pi speakers... crossover is made with left-over PCB's I had with good/standard/whatever quality parts I could find for reasonable price: Jantzen Cross-Cap's and Bigger gauge coil for the woofer (1,4mm wire) and Metal-film non-inductive 10Watt resistors. I'm still waiting on delivery for 100Watt 8 Ohm dummy load resistors to be mounted off-board as per drawing.

index.php?t=getfile&id=2003&private=0


For the speaker components I wanted to start with all-standard Eminence - but I got lucky and found a good deal on summer fire-sale and got myself B&C DE250 for just 25.- Euro more than PSD2002 per piece.

For the woofer I wanted to jump right on the upgraded part but it's price in Europe is just silly high (300,- Euro per piece) so I settle down for stock part Delta 12LFA.

Now that the funds are exhausted, I have to wait till next month to start working on the box itself, I will surely post many pictures of the build...

index.php?t=getfile&id=2004&private=0


Initially I wanted to make 4Pi but after years of waiting to save some money for JBL 2226 woofers, I realized it is not going to happen as the JBL components are awfully expensive in Europe - asking price of 440,- Euro for just one woofer is pretty steep when you combine all other costs of build... so I re-read all reviews of anybody ever build 3Pi's and decided to get going with basic design and see for myself what is all about!

I know that many owners have upgraded from 3PI to 4Pi or even 6PI but in my case I won't be able due to costs of entire project. I hope I made right decision as I really want to have some serious sounding speakers in my room and hear that proper horn sound as I was never satisfied with normal woofer/mid/tweeter configuration.

Even the best ones where never good enough except for some older JBL 4412A series I had in the recording studio some 20 years ago and on occasion listening to 4425 - a two-way with the horn... well it had precision and fantastic insight in recorded music other speakers could not achieve. Even the big UREI 813A I had pleasure/pain to listen for extend period of time where honky, aggressive and coarse sounding and really needed a lot of power to sound best - so not the best speaker for home usage at all and this very experience made my final decision in favor of 12 inch woofer instead of 15 inch for the time being.
Please chime in with any suggestion or ideas regarding the decisions I made!

Re: New 3Pi build [message #86097 is a reply to message #86096 ] Mon, 11 September 2017 08:36 Go to previous messageGo to next message
Wayne Parham  is currently offline Wayne Parham
Messages: 16974
Registered: May 2009
Illuminati (33rd Degree)

Looks like you're off to a great start!

The four π loudspeaker model is not an improvement over the three π model. They just use different midwoofers.

What are improvements are the upgrades. So you might listen to the stock model for a while while saving money for the Definimax midwoofer. It's worth the money, and offers smoother sound. This is especially true in the midrange.

See the links below for more information about models and upgrades.
But don't worry - The stock build sounds good too. They are going to be some great speakers when you are done!
Re: New 3Pi build [message #86098 is a reply to message #86096 ] Mon, 11 September 2017 12:34 Go to previous messageGo to next message
tubemax  is currently offline tubemax
Messages: 21
Registered: February 2012
Location: Netherlands
Chancellor
Wayne, thanks a lot for clarifying about 3/4Pi models!

I thought always that 4Pi being bigger ( bigger woofer ) and pricier would automatically means better sound, but I guess in your designs is maybe less important because they are based on same principles.

I actually wanted to go for all Eminence - upgraded Definimax woofer and psd2002 but it went other way around due to price difference.
Never mind, I would like to go myself slowly through the upgrade path and find out for myself differences in quality.

Can't wait to make some dust, you will hear from me very soon!
Re: New 3Pi build [message #86099 is a reply to message #86098 ] Mon, 11 September 2017 15:19 Go to previous message
Wayne Parham  is currently offline Wayne Parham
Messages: 16974
Registered: May 2009
Illuminati (33rd Degree)

The 2226H midwoofer used in the four π loudspeaker is a very high-quality driver. But so is the Definimax used in the three π model. The 2226H does have a slight edge in that distortion is lower and efficiency is higher. But it's not night and day - Both are very good loudspeakers.

Previous Topic:My "new" Pi 2 Towers
Next Topic:plans request
Goto Forum:
  


Current Time: Fri Sep 22 15:35:45 CDT 2017

Sponsoring Organizations

AudioKinesis
AudioKinesis
BOI Audioworks
BOI Audioworks
BuildAnAmp.com
BuildAnAmp.com
Crescendo Systems
Crescendo Systems
DIY Audio Projects
DIY Audio Projects
OddWatt Audio
OddWatt Audio
Pi Speakers
Pi Speakers
Prosound Shootout
Prosound Shootout
Smith & Larson Audio
Smith & Larson Audio
Lone Star Audiofest