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Reading the Serial Number


ATSAU

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Ok so I am sure this is not new and exciting for most of you but it is for me!!!!! I inherited a pair of Klipsch speakers and I had no idea what i had, I have had these for almost 3 years now, the outside was not anything exciting looking so I didnt think much of them. Until today!!!! I hooked these bad boys up and Cranked it, It was loud and clear and not a drop of distortion. The best sound I have ever heard out of home speakers. I opened up the back and looked inside and saw what I had... YIKES!!!!!

SO my question is How do I tell how old these are??? I have a serial number carved in the box, Consecutive on each speaker... 61S631 and 61S632.

And on the label on the inside of the back cover... its Says H-BR which i gather means Brich made Cabinet and the serial number hand written on the label.. And it looks very much likr these were Individually signed but the inspectors, so stamps or numbers, there actual signatures. I am trying to get an age idea on these. and if there is an Online owners manual somewhere and you happen to know where i can find it... that would be awesome.

Thank you so much for your help!!!!!

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Welcome to the forum and congrats on discovering your Klipsch speakers.

HBR indicates that they are Heresy Birch Raw, unfinished cabs from the factory.

The "S" in the serial number indicates the date of manufacture in 1978.

Always fun to hear someone excited about these sweethearts. Enjoy.

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You have a pair of first generation Heresys. Here's some specs copied from Klipsch;

SPECIFICATIONS

BUILT FROM: 1957

BUILT UNTIL: 1985

DIMENSIONS: 21.4" (54.36cm) x 15.5" (39.37cm) x 13.2" (33.53cm)

ENCLOSURE MATERIAL: Birch Plywood or Veneered Lumbercore

ENCLOSURE TYPE: Sealed

FINISHES: Walnut, Rosewood, Teak Oil, Walnut, Oak, Cherry Lacquer, Raw, Black Birch

FREQUENCY RESPONSE: 50Hz-17kHz(+-)5dB

HIGH FREQUENCY HORN: 90(o)x40(o) Exponential Horn

MID FREQUENCY HORN: 80(o)x30(o) Exponential Horn

MIDRANGE DRIVER: K-55-V 2" (5.08cm) Phenolic diaphragm compression driver

NOMINAL IMPEDANCE: 8 ohms

POWER HANDLING: 105 watts maximum continuous (500 watts peak)

SENSITIVITY: 96dB @ 1watt/1meter

TWEETER: K-77-M 1" (2.54cm) Phenolic diaphragm compression driver

WEIGHT: 55 lbs. (24.97kg)

WOOFER: K-22 12" (30.48cm) Fiber-composite cone

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Thank you so much for your reply... I am hungry for Knowledge on these...

I have a pair just like yours. You will not find a finer bookshelf speaker. If they sound a bit tired, you can check out Crites speakers, where you can get replacement parts, and capacitor kits, etc.

Depending on your music preferences, you might want to add a subwoofer to the lineup. A pair of Heresy's and a sub is hard to beat at any price.

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