on these HFs i thinking between 800 to 1500. no i'm not trying get bass out of them, just the low to mid voice range
????
What do you mean by no low end?
Ron
Enjoying Altec Speakers since 1972
on these HFs i thinking between 800 to 1500. no i'm not trying get bass out of them, just the low to mid voice range
IMO, they're best crossed @ 1200 12db/octave minimum.
Sucks about the shipping, can you get any compensation, even a token?
Not all vegetables make good leaders.
as i was replying yesterday,,,, im going for 1200 like you suggest. i guess im going to have to learn about x-overs. what i really want to know is what upper freq can you realisticaly expect 416Zs to work up to? i'm counting on using the 806-8as (if i recieve them) and if i can repair the one that doesn't work
i messaged the seller, and will wait till i get a reply before i drop feedback on him. somehow i'm not seeing 5 stars in his future. i have the horns, they do work, and i can always have a buddy weld the ear back on. with a little sanding and careful paint you'll never be able to tell.
Last edited by Phil-G; March 22nd, 2013 at 02:07 PM.
I would say for me, 1600 is an absolute upper limit on the 416, but 1200 is better. I know what specs sheets say, but speakers aren't best pushed to the limit.
Your neighbors called. They like your music.
i see spec sheets as a reference but prefer experience.
so ahh phase plugs aren't supposed to rattle around are they.what kind of glue are they supposed be attached with? looks my first horn repair.
edit do you think this maybe the reason they don't quite sound like what i was expecting,,, you think? also one gasket between the diaphram and horn on one of the horns is missing.
Last edited by Phil-G; March 19th, 2013 at 04:57 PM.
You don't like the rattling phase plug? It was an Altec option.... :-) Adds a little snare to the music.Originally Posted by Phil-G
i see spec sheets as a reference but prefer experience.
so ahh phase plugs aren't supposed to rattle around are they.
edit do you think this maybe the reason they don't quite sound like what i was expecting,,, you think? also one gasket between the diaphram and horn on one of the horns is missing.
I'm betting you will figure out how to make a new gasket.
Enjoying Altec Speakers since 1972
Here's an old measurement I did of 902 on several horns:
You can see on both the 811 and 511 it will do fairly well down to 500 Hz, but you will probably be happier with it crossing it higher. It's a little bit of a bumpy ride down that low...
- Mike
It's as important and functional as any other part of the horn/driver system.I'm betting you will figure out how to make a new gasket.
Listen listen listen to them down there. Frequency response only tells part of the story.You can see on both the 811 and 511 it will do fairly well down to 500 Hz, but you will probably be happier with it crossing it higher. It's a little bit of a bumpy ride down that low...
Don't get me wrong, i'm not saying they sound "bad". I'm just saying that at 500hz on a 511 an annular phased 802 with it's less powerful motor and large, open, damped rear chamber make for better SQ at 500. It's immediately noticeable to me, and i prefer getting the crossover region "right" over HF extension.
Just my .02.................... YMMV.
Not all vegetables make good leaders.
Beginning with the 802-8G based on my limited experience with them and for sure with GPA's version based its published measured response on a 511. Adapted to a 311 or larger horn though, it should be fine down to 500 Hz, but the trade-off will probably be a more rolled off extreme HF due to the higher throat impedance, so might as well use the earlier 802/808 driver unless one wants the increased pattern control, power handling of a larger horn.
GM
- - - Updated - - -
Mine too.
Actually, the 'FR' pretty much tells us all we need to know in this case, it?s unloading below 1+ kHz, so with a ~ 800 Hz F6, this is the practical lower limit and for best overall performance it needs at least a one octave of ~ flat BW/2nd order, so Altec?s ~1.2 kHz XO point is spot on, making it pretty obvious [at least to me] that the XO point was chosen first, then the driver designed to match.
GM
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
Posting Permissions
Bookmarks