JRH

1E166 was the last recorded serial number, so 666 in total seems to be correct. At the beginning of the logbook it says: "Began giving serial numbers to assembled Shorthorns both decorated and utility. Started on 25 Jan 56 with ser. # 501". That COULD imply that un-serialized units exist.

Without actually measuring one I can't say with 100% certainty. However, the T2A drops the thru-put in 3 dB steps (-3, -6, -9, -12). Its very likely that PWK needed a further 3 dB drop (-12), resulting in the "A" suffix.

The attached "Rosetta Stone" may help..........

Checking with Gary Gillum, the resin included black pigment. Areas that were not glassed (LS and MWM interiors) got the standard black lacquer. In the case of the 260 horn, black gel coat was applied to the mold prior to layering with glass and black pigment.

1265 and 1266 are listed as slant monitors (angled cabinet) and were shipped 5/23/78 to Chujko Bros. 1267 and 1268 are listed as HIP's (ported rectangular cabinet) and were shipped the same day to Turntables Unlimited.

I couldn't tell you an exact color specification, however, I suspect it was the "same black" lacquer used for basically everything else. Aluminum trim was purchased from Macklanburg-Duncan. They still offer some trim, but I'm not sure about the "odd angle" for the LS doghouse. https://mdbuildingproducts.com

Note the change to the Heppner driver was accompanied by a change from the E network to the E2.

They are the "original" Cornwall II's. 159 and 160 shipped on 12 Nov. 1971, and 161 and 162 shipped 3 days later. No clue about destinations. What is exceedingly rare (and curious) is that 162 was signed by RLM. That is Bob Moers, President of K&A. He is at the left during construction of the Plexiglas K-horn, at roughly the same point in time.

I don't know, and I doubt there is "evidence in the files".

All I can discern is that it was mahogany.

The phase plug change was only to fill a minor dip in the upper frequency response. B2 can be used with either.

In the early 2000's a "boutique" amp company approached Klipsch with a "marketing collaboration" proposition. No deal was reached. The Museum has a vaguely similar prototype. This MIGHT be an internal prototype of theirs that we did not see. This is strictly a GUESS! On the other hand, it could be (and probably is)someone just farting around.

#786 logbook entry says: S-M-2.15; E.V.; W2 It shipped 6 Nov. 1957. No idea why it was "inspected" 3 months later!

995 is also one of the relatively few 15" woofer versions sporting a 22 network. It should sound more bass-heavy!

The leading character is a "zero". The first logbook entry is for 0J004 on Jan. 5, 1971. Later in January, 0J006 has the note: "First unit with Belle Klipsch label".

I got an email asking specifically about 993 and 994 logbook entries. Not sure why it doesn't appear on this thread. In any case, they both shipped Dec. 14, 1959 and were entered as "SWO-15, 103LX, SAHF, K-77, and W5-22". A few 15" woofer versions reflect the W22 network. However, the vast majority have the W22 for 12" woofers and the W33 for 15" woofers. Not sure why a few "buck the trend".

As promised..............

The Shorthorn's history is somewhat convoluted. In the 50's, K&A was struggling with solvency, so it was somewhat like Burger King: Have it your way! The Shorthorn was offered with a 12" or 15" woofer: K-Ortho 12 and K-Ortho 15 packages. The logbook reflects the "33' network suffix associated with 15" woofers, and the "22" suffix associated with 12" woofers (more than one brand of both sizes) The attached price sheet reflects the change to the K-77 tweeter from the University 4401. This explains the W2 and W5 nomenclature change. Due to attachment size limitations, I will post a network schematic shortly that sheds further light.

Yes, a pic would help! There is no clear evidence in the logbook about kits being offered. The standard "S" model was offered in kit form, but w/o serial numbers, and no entry into the logbook.

You've stumped "the historian"! It will take some research to identify the transition date. I highly suspect that both transformers have taps "spaced" by 3dB.

I believe they can be used interchangably. "Network", for PWK, was greatly influenced by his graduate study under Frederick Termin at Stanford. The oldest loudspeaker "network" so far identified in the Klipsch Archive is 1951, where "crossover network" was used. Semantics does evolve. The original impedance rating of the Klipschorn was 16 ohms. The DCR of the woofer coil was, and remains, a little over 3 ohms. It is no longer considered "16 ohms".

Thanks, grindstone! Not sure I've seen this one, but it has been added to the digital archive in case we don't have that particular issue. No surprises.

Sorry, but not much more. The logbook shows a ship date of 11/6/1957. Maybe the label date was miss-read?

In late February 1983 (2/22 thru 2/25) over 136 Heresy's were shipped to "Canada". It's unclear exactly when these particular two departed. Both are HWO's with #17 grills.

Bless you, wuzzzer!