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Old 25th January 2013, 11:24 PM   #1321
jzagaja is offline jzagaja  Poland
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Measured polars.
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File Type: zip FP15.zip (527.7 KB, 5 views)
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Old 31st January 2013, 05:23 AM   #1322
jzagaja is offline jzagaja  Poland
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Too bad BMS 4550 has this dip between 1-2kHz. I remember earlier units behaved better.
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Old 1st February 2013, 03:27 PM   #1323
wdhro is offline wdhro  United States
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Do you have a plane wave measurement of your 4550? I don't recall my units behaving that way - could it be the horn?

Btw, when will you be coming out with constant directivity in both the horizontal and vertical planes?
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Old 1st February 2013, 04:26 PM   #1324
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Can you confirm the low cutoff point for the SEOS-18 for 1.5" drivers?

I have pre-paid for a pair of black SEOS 24 through Erich @ DIY Sound Group (he said the next pallet should be here by end of january... appears it hasn't even filled up or shipped yet, so might be possible to change things around).... the SEO24s are to be used with JBL 2447 CDs with beryllium Truextant diaphragms (JBL confirmed 0 degree angle for the 2447 CD). But if the SEOS 18 can be used just as low with the same performance, I could be persuaded to change my order. I planned to cross them over to an Acoustic Elegance TD15M 15" driver around 500Hz.

Can you please also confirm if these new waveguides (SEOS-24 and this new SEOS-18 for 1.4 and 1.5 inch throats) will come with the metal mounting rings instead of the MDF mounting rings? I'm concerned about the MDF mounting rings having cracking issues down the road and issues of drilling holes for multiple different CDs over time creating problems for the MDF versus more stable metal ring... also, the studs for the 2447 aren't long enough to support a super thick mounting ring. I'd have to pull them and find an alternative... thinking it'll be fine with metal mounting plate. so I have a preference just based on that alone

Please advise. Thanks!
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Old 2nd February 2013, 03:45 PM   #1325
jzagaja is offline jzagaja  Poland
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Good idea about plane tube - need to make it. My BK2012 started to lowpass on both Preamp Input and Direct Input while in loopback is ruler flat. This is weird. I need repeat measurements

As for the SEOS-18 - it's "short" horn so please wait until I'll make measurements. Naturally it has metal mounting or not if made out of solid surface (one piece).

Vertical controlled directivity - SEOS and OS have it
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Old 2nd February 2013, 06:52 PM   #1326
jzagaja is offline jzagaja  Poland
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Found this today:

HiFi Tage Hamburg 02.02.2013 Fast Audio Zimmer - YouTube
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Old 11th February 2013, 07:53 PM   #1327
Face is offline Face  United States
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Any SEOS-24 measurements yet?
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Old 18th February 2013, 10:47 AM   #1328
tnargs is offline tnargs  Australia
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Quote:
Originally Posted by jzagaja View Post
Sounds fantastic on laptop speakers!
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Old 18th February 2013, 02:52 PM   #1329
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Any SEOS-24 measurements yet?
Ditto Face's request

Also, any update on the status of the pallet coming to the USA to Erich? Are we getting close to all items built and pallet ready to ship? Thanks!
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Old 18th February 2013, 04:00 PM   #1330
jzagaja is offline jzagaja  Poland
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Please ask Erich Was in Germany for a two weeks, got flu, and still waiting for SEOS-24
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