Lone Star Audio Fest 2011 -- Dallas, TX

[ttan98]

Originally Posted by ultrakaz

I suppose a little peak in a full range helps the off axis response. But not 15db+(!). Even at 2m in a highly damped room this will saw off most ears. Well at least mine. This particular Markaudio driver was designed for hippies with blown out ears. Or the ones who read these threads on the forums and follow certain gurus and take what they say for gospel.

This frequency response is not high end audio. However, I must admit that for short listening periods on certain types of music it will sound more detailed and hence "better", when compared to speakers with a flatter response. This is the business end of speaker design.

I don't blame Mark one bit as he's giving diyers' what they want or at least think they want. And to his credit he offers other drivers with a flatter response.

The directivity of any FR is poor hence the reason for rising response at high freq. above 6-8kHz, so when you listen off axis say between 15-30deg(the speakers are toe-in) the FR freq should be relatively flat(+/- 5dB), This would be good performance for FR spkrs. Outside that range its Freq Resp. curve dives at high freq.

For excellent image you have to sit in between the speakers.

[rjbond3rd]

Personally, I like the A7 very much. At very close range, and on-axis, I noticed (at first) a certain "zing" compared to the slightly warm, rolled-off sound I usually listen to. But in a normal seating position, it was just right, and not fatiguing. I'm certainly not a hippie (nothing against them).

Rather than tilted up (as others described the response), I find the Mark Audio's to be pleasantly bass-heavy at times! But also more extended than what I'm used to. I am buying the Alpair 10's for a certain application (two-channel doing double duty as home theater). But there is no one perfect driver for all applications.

Looking forward to hearing these in Dallas, Bob. Anyone else attending?

[Wayne Parham]

I'll be there, of course.

• High-Fidelity Uniform-Directivity Loudspeakers

[steviedon]

Wayne- will you have sub(s) on hand?

[Wayne Parham]

I'll be running three Pi mains and three Pi subs. The mains have all the upgrade options - TD12S woofers, DE250 tweeters, Auricaps, Mills resistors and 15guage Jantzen coils.

three Pi mains with flanking subs

[steviedon]

umm....yum!

[zman01]

Originally Posted by Bob Brines

I'm writing up the info on my new A7 TL for my web page, but here is a first look. The cabinet is a 36" 6:1 taper TL. While I was doing the modeling, I compared a constant taper pipe with a three constant CSA sections. Not much difference in performance, but the three section pipe is a lot easier to build. The prototype is veneered with walnut and finished with polyurethane.

The pictures are attached to this first post. Performance will be attached to the second post.

Bob

Compact, clean and simple aesthetic, should have high WAF among other positives! All the best for the Lone Star Audio Fest.

[rjbond3rd]

Don't forget if you're near Dallas, the Lone Star Audio Fest starts today, Friday, through Sunday.

Lone Star Audio Fest

I'll try to post some photos Sunday. See you there!

[SY]

I'll be there tomorrow afternoon through Sunday morning.

[jamikl]

I think the 30 degree response looked pretty good and as stated if one mounts them square this would be about right. I also note that in all of MJK's sheets when you model from a listening distance of 10 plus feet with room boundaries activated the higher frequencies drop off hugely. I am sure any individual will find a distance and angle where these would work really well for him/her.
jamikl