e-Lips

[richidoo]

My friend Sol came over today to help work on the EQ. He brought a professional analog parametric equalizer and worked the magic. Then we transferred the settings into the Rane and there was a big improvement overall. Thanks Sol!   Now I can fine tune his basic curve.

[richidoo]

Realized that my crossover freq sits right in a null at the listener seat. So I started messing with speaker position. I used free SynRTA by Liberty Instruments to watch the FR while I moved the speakers in real time, pretty cool. I was able to flatten out the bass quite a bit and did some listening, I definitely want it to sound like that. But the imaging was not great due to the extra width, and the EQ that Sol did went off when they were moved, so it'll need fine tuning again.

I decided to flatten everything, match woofer and mid levels, then do the Master Set speaker placement ritual on them. I'll be working on that tonight. Once I have decent bass location, then I can fine tune the mid with toe and EQ. I have the old position saved just in case.

[richidoo]

Master Set came out good. They are closer to front wall by 20", which reduces the soundstage depth illusion, but the gain in density, bass power and evenness and imaging is worth it. With my last speakers the Ushers the tradeoff wasn't worth it. Maybe that is because the Ushers were so much deeper that their drivers couldn't get this close to the wall to use this particular position, or maybe the open baffle openness compensates for loss of depth.

The EQ Sol and I made for the other position apparently has a lot of room correction in it because it needs a good amount of adjustment with the new position. Master Set is worth a try if the concept appeals to you. Here are the important links describing it, but lots of discussion in these threads about MS.

http://db.audioasylum.com/cgi/m.mpl?forum=speakers&n=215930&highlight=Master+Set&r=
http://www.audiocircle.com/index.php?topic=60819.0
http://www.audiocircle.com/index.php?topic=65908.msg609250#msg609250

[richidoo]

I sold the Feastrex drivers yesterday. Long fun adventure but it's time for the next chapter.
E-Lips will become a 3 way.

[rollo]

 May they rest in peace. I heard a vintage pair of Tannoy drivers in a custom 2 1/2 in. th. cab with an external crossover designed and built by Dr. Loesch. A 300B Loesch amp and first generation Loesch preamp.
  What a wonderfull sound. Tonality, harmonic stucture, air , linear frequency response. Kinda makes one rethink what they are doing.


charles

[Rob S.]

Rich,
    What will you have for drivers on the 3way?  Still going the active route?

Rob

[richidoo]

May they rest in peace.

They're not dead, they are going to live with someone who can appreciate them better for what they are intended to do.

Tannoys and 300Bs sound interesting!

[richidoo]

Rich,
    What will you have for drivers on the 3way?  Still going the active route?

The Jantzen JA8008 mid and Audax TW034 tweets, as used in designs by Troels Gravesen. I want to make some of his speaker designs after the ELips.  http://www.troelsgravesen.dk/JA8008.htm

The open baffle sound is not exactly to my liking so far, I seem to like the density and more omni projection of a box over the hyper spacious sound. That's what TomS said about his OBs too. But maybe it will be better with the bigger mid driver. I'll give it one more try with the JA8008s. They are 8" drivers so they will blend with the AE woofers better than the 4" feastrex driver.   The Granada has bigger baffle than mine to fix that prblem.

[richidoo]

I am taking a DIY speaker sabbatical, not going to get the JA8008 kit at this time.

So I'm selling the E-Lips woofers. ANer's get first dibbies... I'll post ads elsewhere next week.

http://www.audionervosa.com/index.php?board=14.0

[richidoo]

Only one weak nibble on the woofers, and I'm not ready to slash them to move em out, so I decided to keep the woofers and continue with the E-Lips project as a 3 way. Thanks to RobS and Mark H. for encouraging me to continue with it. With 60-70 degree weather here this week things are looking up and I'm looking toward spring and new projects. Fucking winter almost got me this time. 

I'm planning to get the Jantzen JA8008s and Audax tweeters with waveguide as described in previous posts. That will enable several new projects that I am eager to try, and will match the sensitivity of the woofers should I want to do a passive crossover for ELips in the future.  The JA8008 is similar construction as Dipole 12, great motor, very sensitive, paper cone with foam surround.

[Face]

Glad to hear it!

Those Jantzen mids look nice.  Judging by the frame, magnet, and spider, it appears that SEAS manufactures them for Jantzen. 

[richidoo]

You're right SEAS, looks like a Prestige frame. Thanks Face!

[richidoo]

The AE drivers are sold now too. They were too high Q for my taste, which is not necessary with EQ and active amping.

I ordered the Jantzen drivers from Denmark today. The woofers called for in the DTQWT-12 speaker I plan to build are Eminence deltalite 12" neos 100dB. They have lower Q than the AEs, and they will fit in the ELips baffles perfectly.

[richidoo]

Drivers arrived today. I'll stick them in the E-Lips frames with active XO. Since the Elips has cutouts for 12" bass drivers, that will push me toward building the DTWQT-12 first so I can use the 12" drivers in ELIps also.

[rollo]

Richadoo the winter got to me. I have this pair of Maggie 2.7 ribbon tweeters just hanging here for some time. Wanna try em out for a Spring project.  Or anyone else.


charles