How about a new/another "extended range driver" thread?

TubeHiFiNut

Administrator
Some of the full range drivers I have include:

Lowther PM2a in Medallion cabinets:

20160508_180612.jpg

The Lafayette SK-98 8" in DIY cabinets that I got from @opa1 :

photostudio_1518401319084.jpg

A pair of 12" QUAM Alnico Lowrey P-6160 Speakers ~ 16 ohms from 1959 (pics to follow).

The pair of Philips AD3800M/01 8" full-range drivers I got from @John Frum :

DSCN0197.JPG

JBL Lancer 44:

2ee97ae67568c2865860b63256c9bae0.jpg
(Pic shamelessly purloined from the Internet)

The Altec 755a in my original AR1 speakers. Grilles don't come off so can't easily get pics of them.

Might have a couple of other types around here somewhere.....will have to ponder.
 

mhardy6647

Señor Member
I actually had a Lafayette LR-4000 Quadrophonic receiver back in the mid-1970s.

Four Marantz Imperial 7 speakers - one on each corner of the waterbed.

And Dark Side of the Moon. :)

But I digress..... ;)
Nearly inexplicably, I own (and have owned, since the latter half of the 1970s) a German import copy of the quad Dark Side of the Moon (not CD-4, but matrix quad -- QS or SQ or whatever). It's interesting because the mix (played in stereo) is quite a bit different than the traditional stereo LP mix. The posters are different, too. I had them on my wall in college, but somewhere in the intervening 40 years they've gone missing. Heck, they might even still be here... somewhere. Perhaps my family will find them after I've... umm... you know... left the building. ;)
 

mhardy6647

Señor Member
Some of the full range drivers I have include:

Lowther PM2a in Medallion cabinets:

View attachment 7057

The Lafayette SK-98 8" in DIY cabinets that I got from @opa1 :

View attachment 7055

A pair of 12" QUAM Alnico Lowrey P-6160 Speakers ~ 16 ohms from 1959 (pics to follow).

The pair of Philips AD3800M/01 8" full-range drivers I got from @John Frum :

View attachment 7058

JBL Lancer 44:

View attachment 7059
(Pic shamelessly purloined from the Internet)

The Altec 755a in my original AR1 speakers. Grilles don't come off so can't easily get pics of them.

Might have a couple of other types around here somewhere.....will have to ponder.

Very nice -- I think your SK-98 odyssey kind of spurred me back into an interest in the Pioneer "biflexes", in point of fact! :)
 

TubeHiFiNut

Administrator
Nearly inexplicably, I own (and have owned, since the latter half of the 1970s) a German import copy of the quad Dark Side of the Moon (not CD-4, but matrix quad -- QS or SQ or whatever). It's interesting because the mix (played in stereo) is quite a bit different than the traditional stereo LP mix. The posters are different, too. I had them on my wall in college, but somewhere in the intervening 40 years they've gone missing. Heck, they might even still be here... somewhere. Perhaps my family will find them after I've... umm... you know... left the building. ;)

Mine was SQ. Never really got into CD-4. :)
 

mhardy6647

Señor Member
I have some CD-4 rekkids, but no decoder and no CD-4-friendly stylus (although all of the old Grados claimed response and tracking that was CD-4-capable).
 

TubeHiFiNut

Administrator
I have some CD-4 rekkids, but no decoder and no CD-4-friendly stylus (although all of the old Grados claimed response and tracking that was CD-4-capable).

I have a few CD-4 records and still have an Audio Technica AT15Sa (needs a stylus) and the venerable Panasonic EPC-451 Strain Gauge. No decoders, though.
 

mhardy6647

Señor Member
speaking of "fullrange drivers" and the topic of amplifier/loudspeaker synergy...

We were having a chat here in northern New England sort of on this topic this weekend. One of the local gurus shared a Nelson Pass white paper that's both interesting & cogent... and which, I was (am) chagrined to admit, I've not seen before.

So, I thought I'd share it with all y'all.
http://www.firstwatt.com/pdf/art_cs_amps.pdf

My apologies if everyone but me had read this (perhaps long ago)!
 

OldNuke

A hoot.
Thanks for this, I for one hadn't read it but by shear luck (and a lot of forum trolling) have tried a lot of these speakers. Now to find something similar that has open baffle or no baffle measurements to support my latest speaker adventure.
 

Redboy

Knobophobe
I dig these cabinets...

 
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