2. amps-preamps
  3. 124321-369

Speltz Zero Autoformer with Tenor OTL 75

Hi,
I have a Tenor OTL 75 amp. It sounds great but there are times where you really miss having more power/damping to control the sound better. Has anyone tried the Zero Autoformer by Paul Speltz ? My primary concern is, is it just a band-aid like a make-shift solution or is it really effective ? Is there any loss of resolution or speed ?
pani

Showing 2 responses by don_c55

don_c55
1,025 posts
 
OTLs with external transformers, are not really better than tube amps with transformers, into lower impedance speakers. IMO!

What is the OTL advantage, over most tube amps, when using most non electrostatic speakers???? NONE!
don_c55
1,025 posts
 
I live in the twin cities and nobody uses Atmosphere amps on maggies.

I heard them once connected to maggies at the dealer, and they sounded poor, IMO. The store owner said they were a poor match.

I do not see the advantage of a 2 MHz bandwidth on the Zero.

More to discover