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Vintage midrange ID

75.111.57.232
Posted on March 20, 2008 at 21:16:47
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004



This is from a early 70's Sylvania 3 way speaker. I'm intrigued by this driver and wonder if it is worth giong after($10 at a thrift store) of course then I have the cabinets(nice & heavy) with rotted Pyle 12''replacement drivers to deal with....
Any info out there?

 

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Bet It is Not Original, posted on March 20, 2008 at 21:39:22
Lucas Membrane


 
The uneven crud around the flange makes it look like it is an upgrade of some variety. Ditto the tweeter.

 

RE: Vintage midrange ID, posted on March 21, 2008 at 06:56:31
Phil D
Dealer

Posts: 1266
Location: Cincinnati
Joined: March 12, 2007
 I would bet that is the same mid used in the McIntosh speakers. Just buy them if there is a pair. What does the tweeter look like?

 

Here's the tweeter, posted on March 21, 2008 at 07:36:55
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004




Here's the tweeter, look like anything special?
Since the cabinets are so heavy and well made, I might just keep whats good and replace the rest, including the RCA speaker jack... I'm a bit on the fence on this one... I read these were made in 1970-71, by sylvania itself.

 

RE: Vintage midrange ID, posted on March 21, 2008 at 08:33:48
corerosin
Audiophile

Posts: 1481
Location: northern Delaware
Joined: March 21, 2005
 It sort of reminds me of the tweeter in a mid 60's Scott two way speaker. It was used as a tweeter paired with an 8 inch woofer.

You should be warned to take the standing crossover along with you when you pull the drivers. Adding a midrange seems like an intriguing possibility, but in execution they are a pain in the butt. First off, they have a very narrow bandwidth. Also, incorporating one instantly doubles the parts count of your crossover. They are very difficult to do well.

However, if you want to play around and you have the ability to test the response, they can be alot of fun.

 

Correct me if I'm wrong..., posted on March 21, 2008 at 09:08:53
realistico
Audiophile

Posts: 1303
Location: New England
Joined: January 12, 2003
 But my understanding is that by that time Sylvania=Philips. I know that in the Quad Era Sylvania had some 4ch receivers that were made by Philips. I had one once, it was pretty decent. Might have been made in the USA as well, I don't recall offhand. But Philips did make good speaker drivers.

--Matt
"You know why is that?"

 

RE: Correct me if I'm wrong..., posted on March 21, 2008 at 11:18:09
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004



"If they are indeed the AS-225A's those are probably the best speakers to carry the Sylvania name on them. They weren't built buy any third party either, they designed and built their own equipment"
From an AK discussion forum about another model....Anyway it looks like the mid isn't original per the image above..(this is the model I'm dealing with)

 

I take it back!, posted on March 21, 2008 at 11:21:41
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004
 I blew up the image of the as125-1w and I think the mid may be original after all, just a different color, no?

 

And here's the poop! Is Heppner a good driver?, posted on March 21, 2008 at 11:26:34
sanman
Audiophile

Posts: 1780
Location: Redwood Coast
Joined: November 13, 2004
 theGeneral Information:

MSRP: $149.95
Known Models:
AS-125W
AS-125W-1
3-Way Air Suspension system
Woofer: 12 inch with a 16 ounce AlNiCo magnet by CTS (Part No. 12-22113-2)
Mid-range: 1.5 inch dome by Heppner (Part No. 12-32212-2)
Tweeter: 1 inch Mylar dome by Heppner (Part No. 12-28909-2)
Production Years: 1971 to 1972
AS-125A
3-Way Air Suspension system
Woofer: 12 inch with a 16 ounce AlNiCo magnet by CTS (Part No. 12-22113-2)
Mid-range: 1.5 inch dome by Long Engineering (Part No. 12-34639-1)
Tweeter: 1 inch dome by Long Engineering (Part No. 12-28909-1)
Production Years: 1973 to Unknown
Finish: Walnut Veneer
Construction: 0.75 inch MDF
Physical Dimensions: 15.625 inches wide by 26.125 (28.875 with base) inches tall by 12.75 inches deep
Weight: 44 pounds 8 ounces (47 pounds with base)

Specifications:

Power Handling: 100 watts RMS
Nominal Impedance: 8 ohms
Frequency Response: 34-15,000Hz +/-5dB
System Resonance: 42Hz
Crossover Frequency: Tweeter at 6,000Hz; Mid-range at 600Hz

Features:

5-Way Binding Post and RCA inputs (AS-125W-1, AS-125A); RCA input (AS-125W)
Rear adjustable crossover of +/-3dB for the Tweeter (High/Normal/Low)
Rear adjustable crossover of +/-3dB for the Mid-range (High/Normal/Low)
Available with Black or Beige grills
Optional base
The internet amazes me...

 

RE: And here's the poop! Is Heppner a good driver?, posted on March 21, 2008 at 11:37:51
Tom Brennan
Audiophile

Posts: 5863
Joined: January 2, 2000
 Heppner made some good drivers inclusing some pretty good low cost horn mid-tweets, the "mystery horn" used in the Altec Bolero and Madera is a Heppner. In the 1970s many DIY hornys on the cheap used Heppner drivers.

They also made "dhorms".

I think Heppner was bought by Klipsch when that company was looking to make it's own drivers and later in-house made drivers used by Klipsch look very Heppnerish.

 

RE: Vintage midrange ID, posted on November 8, 2023 at 14:49:52
subzero@gmail.com
Audiophile

Posts: 1
Location: Alaska
Joined: November 8, 2023
 Looks like I'm slightly late to the party. I have the AS125W's. That "crud" behind the tweeter must have came from the factory as mine had it as well. It's kind of like plumbers putty.
Mine are almost completely restored, just need to stain them.
For anyone that passes this thread, these speakers sound VERY nice, well worth the restoration if someone comes across them.

 

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