The encapsulated A5000 motor drive unit is made of ≥99.85% pure iron. Treated aluminum field-coils are connected in series to provide the ultimate medium current field-coil unit for use with current source power supplies. With the use of an A5000, sound quality of a Lowther UK cone assembly is breath taking. Articulation, tone color, rhythm, and detail are all second to none, and significantly without harshness. 

Kilimanjaro Series A5000, Wolf von Langa A5000

For Lowther UK cone assemblies, and compatible
Flux density = 19,250 Gauss @ 1.95 A
Net weight = 8.5 kG
Diameter = 165 mm
Mounting hole diameter = Standard 96 mm 4 bolt mounting circle

A5000, AER, Fostex, Envie, Suesskind, Keller, Lowther, Kilimanjaro-Series, Wolf von Langa

Sample pictures show A5000 drive unit without and with cone assembly.

Frequency response is similar to the original manufacturer’s diagram of a PM7a

Subject to changes/modifications without notice.

Christine von Langa - Roedlas 54 - D - 91077 Neunkirchen a. Br. - Phone +49 (0)9192 996926 - E-Mail: listen(at)wolfvonlanga.com -
WOLFVONLANGA produces unique field coil loudspeakers and drive units. As a manufacturer we solely use the highest quality materials.
We deliver worldwide unique loudspeaker technology. All WOLFVONLANGA products are developed and handmade in Germany.
WOLFVONLANGA is a registered trademark.