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Now OTL from Acuhorn

24.24.149.82
Posted on July 19, 2014 at 14:49:24
deadlyvj
Audiophile

Posts: 57
Location: West Coast
Joined: November 27, 2008
 Looks .... interesting

 

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What does "Maximum Input Power, 230W" mean?, posted on July 19, 2014 at 15:44:36
Lew
Audiophile

Posts: 10912
Location: Bethesda, Maryland
Joined: December 11, 2000
 It cannot possibly refer to output power from one 6C33C. Nor can it refer to input power, really. The amps must have solid state input and driver stages. If they are biasing the tube at 600mA, as stated, I would not be sanguine about the longevity of tube life. That's about 2X what would be a conservative bias current that lets the tubes live a normal lifespan.

Interesting, indeed.

 

RE: What does "Maximum Input Power, 230W" mean?, posted on July 19, 2014 at 16:27:36
deadlyvj
Audiophile

Posts: 57
Location: West Coast
Joined: November 27, 2008
 I don't understand this as well, claim of 1 tube is equivalent to 8 6C33C?
The power supply seems small, switching?

 

RE: Now OTL from Acuhorn, posted on July 20, 2014 at 00:56:30
Al Noakes
 I don't know how they can get 5w into 8 ohms from a single 6C33 , probably they rated power into a 16 ohm load . I did an amp which paralleled up 3 x 6C41 with a choke load , ran hot at a combined 630mA and got just over 2 watts per channel . A 6C33 will put out even less...

Al

 

RE: Now OTL from Acuhorn, posted on July 22, 2014 at 07:46:37
Caucasian Blackplate
Industry Professional

Posts: 8313
Location: Seattle
Joined: June 18, 2004
 Hmm, loose pencil tubes on long flying leads... that will be really fun to ship.

It looks like a single triode drives all the 6C33's in each model, so one would assume that a parallel cathode follower topology is the only option?

(I don't see any extra sand in there to provide the necessary devices for any other type of operation)

 

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