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Jensen XP-101s

174.29.179.117
Posted on September 23, 2015 at 16:43:09
PeterI
Audiophile

Posts: 1432
Location: Colorado
Joined: October 17, 2006
 I have a pair of Jensen XP-101 horn drivers that function and produce sound but looking inside, have some corrosion - a bit of rust and aluminum corrosion. Diaphragms are intact. Not many here have probably been inside these drivers but I could use some advice for cleaning these up.

Thanks in advance. PM me if you like

Peter

 

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RE: Jensen XP-101s, posted on September 23, 2015 at 16:54:55
Coner
Audiophile

Posts: 3703
Location: S.W. Washington state, USA
Joined: November 17, 2001
 Not familier with that driver so....but on a typical standard driver:

Remove diaphragm, use small brass or stainless steel wire brush near magnet area, brush clean. Blow out coil gap with air, use folded over masking tape to get anything magnetic out of the gap. Re-assemble.

 

RE: Jensen XP-101s, posted on September 23, 2015 at 20:18:12
PeterI
Audiophile

Posts: 1432
Location: Colorado
Joined: October 17, 2006
 Thanks. I managed to get them apart. They are OK inside. The parts are unusual and very precise. The tape idea is a good one.

Pete

 

RE: Jensen XP-101s, posted on September 23, 2015 at 22:02:44
Coner
Audiophile

Posts: 3703
Location: S.W. Washington state, USA
Joined: November 17, 2001
 Yes...looks very vintage and collectible, bet it sounds great!.
Maybe no parts for it anymore so be very careful.

 

RE: Jensen XP-101s, posted on October 14, 2015 at 16:16:57
Steve Schell
Manufacturer

Posts: 1440
Location: So. California
Joined: December 16, 2001
 Your drivers were designed in the late 1930s, a time in which Western Electric was enforcing their patents vociferously. The 1930s versions were field coil, later ones in the 1940s were permanent magnet. Anyone who built a Wente-style concentric slit phasing plug driver back then risked prosecution. This lead to some very creative alternative compression driver designs including RCA's center-suspended composite cone compression driver (MI-1428b) and Jensen's XP-101 re-entrant ring radiator design. No one could accuse these outer-limits designs of infringing! Jensen's ring radiator diaphragm fired to the rear, where the energy was gathered to a single path which exited through the center of the driver into out the horn. No one had ever built anything like this before AFAIK. Jensen's drivers even offered a square rather than round cross sectional exit path!

 

Thanks for info! NT, posted on October 24, 2015 at 07:52:13
PeterI
Audiophile

Posts: 1432
Location: Colorado
Joined: October 17, 2006
 nt

 

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