e-Lips

[richidoo]

Yirka over at Hydrogenaudio Forum pointed me to an input plugin for foobar2000 v1.1. I'll try it out tomorrow.     psyche!  That will  allow analog sources to come in on the line input of my soundcard and I can make the whole computer thing a standalone DSP stuck into an otherwise all analog system with preamp and analog sources. I hope it works.

[lonewolfny42]

Almost done Rich.....

[Scott F.]

Rich,

If you slide the 300Bs in, I think you'll find you lose much of that 'zing' you are hearing with the chip amp.

Thats pretty interesting about the quality of the bass. One of these days I may have give OB bass a try. Meanwhile my Altec 15's in a box will have to do. They pack a pretty good wallop 

[richidoo]

A friend of mine built similar OB with Feastrex and the big Altecs, he is very happy with it. They are a very nice driver.

I think you're right about the 300Bs Scott.

I was thinking about why the baffles don't vibrate. I think it is just the mass of the drivers that is lowering the resonance of the baffle system down very low. Each driver has a very heavy motor. Also, since they are unsupported, there is no solid edge to for vibes to bounce off of. The frames of the drivers go out to the edge of the baffle, which is essentially a big aluminum brace, padded by thick rubber driver mounting gaskets. I think it's so cool how the drivers move visibly at high volume, while the baffle is so still.    It still needs a brace on the back to prevent stress on the bottom glue joint. The whole baffle vibrates freely at 3Hz, rocking 2" with a finger pull.

[bpape]

I think you hit the nail on the head with your description Rich.  When you lose the box, you just free up the sound.  There's no fighting pressure, no trying to eek out extension from a driver that can't do it without backpressure, ports, etc.  It's just diaphragms moving air with no restrictions - free to react instantly to the musical signal and only it's own mass to overcome.

Panels do the same but usually with limitations on output and bass extension. 

Next thing you know, we'll have you building an IB sub!

Bryan

[bacobits]

I would love to hear those with your 300B's.
Superb work too!

D

[rollo]

 Looking real good there Professor.


charles

[richidoo]

Thanks Den, and thanks Charles.
These image really nicely too. On good recordings the speakers are not even there. Voices are solid in the center. That means very low phase distortion.

[tmazz]

Thanks Den, and thanks Charles.
These image really nicely too. On good recordings the speakers are not even there. Voices are solid in the center. That means very low phase distortion.

.......and good time alignment.

[richidoo]

I got the foobar input to work so I can listen to analog sources now. But then I found out that my soundcard's SPDIF input is hosed. Hopefully it can be fixed, but I've tried everything I can think of. Tech support is taking a looong time to respond.

I ran a series of 2 second, 1/3 octave tones, 20-20kHz with the sound meter. SPL is all over the place. So acoustics and EQ adjustments are needed.

I need a dedicated computer for it too.  I have a spare Pentium 3 but it is loud.

[opnly bafld]

I love open baffle............. and CD players.

Lin

PS
Rich, the Peerless drivers and a pair of NHT 1259s are collecting dust while I try to decide between really BIG sealed boxes or small H baffles and this http://www.audiocontrol.com/product.aspx?d_id=16463&p_id=171119&tab_id=35&print=1  

[richidoo]

Hi Lin!

Better collecting dust at your house than mine.   

That crossover looks cool... and simple... 

[richidoo]

SPDIF input is fixed. Connecting to it requires a special ritual to acquire sync.  They could have detailed the ritual in the manual, instead of hidden deep in a FAQ. The good thing is the Firepod supposedly knocks down SOnos' 200ps jitter to <1pS on the spdif out.

For a dedicated computer, what about those mini ATX or mini ITX PCs with dual core atoms? Intel has a fanless model:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813121399
I already have a 1394 PCI card.  With 4gig Atom should be plenty to run the crossover and effects in Win7.

[tmazz]

That crossover looks cool... and simple...  

Rich,

The Richter Scale has been a tried and true member of the Audio Control line-up for 25 maybe even 30 years now. While It has been around for ages I can't really comment on how it holds up in the high end arena because Audio Control was really more of a mass market than a specialty label. The better end of the mass market spectrum, but mass market none the less.

[richidoo]

Down low the audiophileness is far less important, if it gets the freq and phase right it should sound good. The 6 band EQ is nice too. How much does it cost?

My Feastrex needs to cross up near 200Hz, can your B200 go down to 125Hz?