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2 Pi or 2 Pi Tower? [message #73765] Mon, 10 September 2012 03:43 Go to next message
Jump is currently offline  Jump
Messages: 48
Registered: May 2009
Location: Italy
Baron
Hi everybody,
could you tell me about difference between this 2 designs?
Thanks

Giampiero - Italy
Re: 2 Pi or 2 Pi Tower? [message #73766 is a reply to message #73765] Mon, 10 September 2012 09:15 Go to previous messageGo to next message
justphil is currently offline  justphil
Messages: 114
Registered: December 2010
Viscount
The only difference is low end extension I am pretty sure. I chose to do the smaller studio version as I like the look of them more and really wanted to stay away from towers.
Re: 2 Pi or 2 Pi Tower? [message #73767 is a reply to message #73766] Mon, 10 September 2012 10:16 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18787
Registered: January 2001
Illuminati (33rd Degree)

That's right. The difference is entirely below 100Hz. The towers have greater extension. The standard bookshelf model is solid down to 65Hz, but the towers go almost an octave lower.

I personally like the bookshelf model when used for surrounds, and the towers when used in a stand-alone two-channel system.

Re: 2 Pi or 2 Pi Tower? [message #73768 is a reply to message #73767] Mon, 10 September 2012 11:19 Go to previous messageGo to next message
Jump is currently offline  Jump
Messages: 48
Registered: May 2009
Location: Italy
Baron
Hi Justphil, thanks for reply.
Normally I prefer Tower against bookshelf, and I have no problem of WAF or space, so I think I'll go for 2P Tower.

Hi Wayne, I am not able to find the Vifa DX25TG05-04 used in your design, I'm finding his replacement Vifa DX25TG-09/04 ... is it the same?

Another question... have the 2P Tower a good punch?
I love listening the music with my ears... but also with my body!

And what about the amplifier... is it better valve or solid state?

Thanks in advance.

Regards
Giampiero - Italy
Re: 2 Pi or 2 Pi Tower? [message #73780 is a reply to message #73768] Tue, 11 September 2012 15:09 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18787
Registered: January 2001
Illuminati (33rd Degree)

The full part number of the current production DX-25 tweeter is DX25TG-09/04, which as you've said replaced the Vifa DX25TG05-04. They're virtually identical, essentially a copy made at a different manufacturing plant.

The towers do provide a healthy dose of midbass "punch" and also more deep bass than you would probably expect from a 10" midwoofer. It's a very satisfying loudspeaker.

I've been very happy with solid-state and tube amps. I've personally run my two π towers with a 50 watt single-ended FET, a chip amp, a modern Harman-Kardon receiver, a single-ended 10 watt tube amp and an ultra-linear 10 watt push-pull tube amp. The towers present a benign impedance load and are fairly efficient so they can be run with pretty much any amp.

Re: 2 Pi or 2 Pi Tower? [message #73781 is a reply to message #73765] Tue, 11 September 2012 16:33 Go to previous messageGo to next message
Jump is currently offline  Jump
Messages: 48
Registered: May 2009
Location: Italy
Baron
Hello Wayne,
thanks for the clarification about the Vifa.

Read your words about the performance of the 2 Pi Tower gave me a big smile on my face! Very Happy

Please, could you send me the 2 Pi Tower plans?

Regards
Giampiero - Italy
Re: 2 Pi or 2 Pi Tower? [message #73782 is a reply to message #73781] Tue, 11 September 2012 17:53 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18787
Registered: January 2001
Illuminati (33rd Degree)

You've got mail!

Re: 2 Pi or 2 Pi Tower? [message #73783 is a reply to message #73765] Wed, 12 September 2012 03:49 Go to previous messageGo to next message
Jump is currently offline  Jump
Messages: 48
Registered: May 2009
Location: Italy
Baron
Thank you very much Wayne!

Another little question about the speakers...

I found in Europe the Eminence Alpha 10A,
looking at the data sheet it differs from the Alpha 10 indicated by you only for the usable frequency range:

45Hz - 5kHz for alpha 10 indicated by you and
57Hz - 4.5kHz for the 10A

Can I use the Alpha 10A in your 2 Pi?

Sorry if I'm getting tired you with these requests, but I don't want to risk building a design that differs from your specifications!

Scuse me for my bad english...

Regards
Giampiero - Italy
Re: 2 Pi or 2 Pi Tower? [message #73784 is a reply to message #73783] Wed, 12 September 2012 07:58 Go to previous messageGo to next message
Wayne Parham is currently offline  Wayne Parham
Messages: 18787
Registered: January 2001
Illuminati (33rd Degree)

The Alpha 10A is the right driver.

Re: 2 Pi or 2 Pi Tower? [message #73789 is a reply to message #73765] Wed, 12 September 2012 13:16 Go to previous message
Jump is currently offline  Jump
Messages: 48
Registered: May 2009
Location: Italy
Baron
Thanks Wayne!

Regards
Giampiero - Italy
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