Hey djw:
Yeah it's me: I had been thinking of posting my experiences (combo-versus head-cabinet) and (1 X 12 (cab-or-combo) versus 2 X 12 (cab-or combo). So, I decided to post here rather than email you directly.
I have used 'all' of these variations now in home and 'more-importantly' in gigging situations off and on for several years now.
My conclusions based on my specific tone preferences are:
There is at best a marginal difference in tone between a combo 1 X 12 and a 1 X12 cabinet and head. Likewise; there is little differnce between using a 2 X 12 combo and a 2 X12 cab and head.
Currently I use a 1 X12 combo at a venue where I leave the amp and use a 1 X 12 head/cabinet as my portable rig.
That said: Here's why I use 1 X12 versions.
There is a HUGE difference in sound between a 1 X12 combo and a 2 X12 combo!
Likewise; there is the same dramatic difference between a 1 X 12 cabinet with head...and a 2 X12 cabinet with head.
The 1 x12 versions (either as combo or as head/cabinet) win hands down tone-wise over the 2 X 12 versions! In my opinion. With the 1 X12 versions; the sound is larger, more robust with GREATLY increased dynamics. The bass is fuller but more distinct. The highs are clearer with less phase-cancellation.
BobL. gave some advise on speaker choices which I consider excellent! However,I chose a slightly different path towards solving my speaker dilemna...but it was based at least partially on the insights he shared with everyone.
I had become discouraged with Celestions in my Lonestars as most were either too-muddy or too harsh (for my tastes) and had 'written-them-off' as a result. A mistake on my part.
I didn't want to use the excellent JBL D-120,s for two reasons: #1 being their expense, but more important to me, #2; they were just too-darned-efficient! I figured I wouldn't be able to turn the Lonestar up high enough to achieve a warm tone or sufficient power-tube-breakup.
I had a few original (1980's) Celestion G12T-75's which sounded muddier than I thought they should. I had read in some postings by the illustrious Mr. Weber (and by others on other sights) about 'reviving' or rejuvenating older speakers. It seems that over time (way after normal breakin) they begin to dry-out and lose some of their frequency responce. So I tried the 'rejuvenation' on my G12T-75's and then tried them in the Lonestar. The sound was excellent after the treatment. It had been quite 'lack-luster' beforehand. But, the G12T-75's are not for everyone; They have a pared off midrange which gives them a somewhat 'dry' tone which I find really good for bright country tones and reproduces the sought after 'crucnch'-tone favored in some rock well enough....but...what I call the 'wet' or 'flute-like' overtones and harmonics of the SRV-tone are not well achieved with this speaker. IMHO.
So I bought a few JBL E-120 speakers. If you are not familiar with them; they have HUGE 109 ounce ceramic magnet structures that dwarf even the popular Electrovoice EV12L series. The ones I received did not sound up-to-snuff as they were. After all they were 80's vintage and well past being merely broken in...so I tried the 'rejuvenation' treatment on them as well. Wallah! I got the 'wet' responce I was seeking with complex harmonics, brilliant highs and firm bass.
NOTE! If you should happen to buy one of these; Be absolutely certain that it has the original 'accordian' edge suspension (or was reconed with a proper JBL type kit). Some of the ones reconed with 'after-market' kits do not have the flexible edges needed to reproduce the lows as well as the originals.
Another alternative is the Eminence 'Commonwealth'. It is the same speaker as the JBL E-120 (more or less) with the proper style 'flexible' accordian edge. However, as it was apparently manufactured to mimic a vintage older speaker...(the speaker-cone is finished to mimic a well used original JBL E-120) it lacked the chimey upoper-mids and high-end of an original NEW JBL E-120.
So I had to use the 'rejuvination treatment' on the Eminence 'Commonwealths' too.
I currently use both the Celestion G12T-75 and JBL E-120's or Eminence 'Commonwealths'. I like them all...but they sound nothing alike. It's a matter of making a choice between them according to your application. Of course you could always chose to have two 1 X 12 cabinets (one with the G12T-75 and the other with either the JBL E-120 or the Eminence 'Commonwealth'). Hey come-on! Don't you really love a valid excuse to buy more gear? I do!
So what is the 'rejuvenation treatment' to which I refer? BTW
on't take my word for it; check it out on-line. You mix plain old white 'School-Glue' with an equal amount of water. You then very carefully brush it on to the cone of the speaker starting where the cone meets the accordian edge (Do Not Treat the edge) and work your way to the center of the cone. Do it slowly without too much of the mix on your brush. Avoid drips that threaten to build up at the dust cap. Do Not Treat the dust cap. You keep applying over and over (at one sitting) until the cone stops absorbing the mix. Let it dry well for a day or two.
IMPORTANT: Do Not apply more on subsequent days. The mix would not penetrate into the cone but instead it would build-up on the surface of the cone ruining your frequency response rather than helping it. Remember...keep brushing on the mix and do it all in one sitting until the cone will not absorb any more. Then let dry for several days.
There is also a treatment for the accordian edges involving 'rubber-cement'. Useful if you have a 'floppy' or 'loose' bass responce or suffer from 'ghost-notes' in any of your speakers. Refer to the web for info on this procedure.
Regards: Charles