OTL Asylum

RE: Connecting tube amp to sub with speaker level inputs

98.164.188.3

LtMandella

A

In Reply to: RE: Connecting tube amp to sub with speaker level inputs posted by Bill Way on January 14, 2022 at 10:00:32

thank you, I should have included a picture in my original post.

So here it is; this is how I would prefer to connect my sub, IF it is safe for my OTL tube amp to connect this way. In my past experience I have found that keeping the Ref 3A DeCapo speakers full range and just using the sub for very low level and very low frequency augmentation of the DeCapos sounded the best to me.

But I don't know if this is safe to do with the tube OTL...

Don't wrestle with pigs. You both get dirty and the pig likes it.
Mark Twain

Follow Ups:

It should be safe with almost any OTL - Ralph 08:41:37 01/18/22 (4)
With our stuff you likely will run into a buzz problem since the output of our amps is balanced (neither side is at ground). But you won't hurt the amp.

I prefer to run a second output from the preamp to the subwoofer.
- RE: It should be safe with almost any OTL - MP 08:01:59 01/23/22 (0)
  I run 2 REL T9i subwoofers in stereo, one subwoofer with one M60, in high level input (speaker output level) balanced mode.
  
  Completely quiet.
  
  Quite happy with the additional bass. Speakers are QUAD 989 or KEF LS50, Zero-former at 3X.
- RE: It should be safe with almost any OTL - LtMandella 08:53:11 01/18/22 (2)
  I doubt very much my Transcendent OTL is balanced, but if I hear a hum I now have a clue as to possible reason, so thank you!
  Don't wrestle with pigs. You both get dirty and the pig likes it.
  Mark Twain
  - Its not balanced; you should be OK. nt - Ralph 10:18:58 01/18/22 (1)
    -
    - RE: Its not balanced; you should be OK. nt - LtMandella 11:08:33 01/18/22 (0)
      great, thank you!
      Don't wrestle with pigs. You both get dirty and the pig likes it.
      Mark Twain

Post a Followup:

FAQ

Post a Message!

Forgot Password?

Moniker (Username):
Password (Optional):
	Remember my Moniker & Password (What's this?) Eat Me
E-Mail (Optional):
Subject:

Message:	(Posts are subject to Content Rules)

Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:	Automagically notify you when someone responds.

To view your new posting or follow-up, click on the RELOAD or REFRESH button on your browser.

This post is made possible by the generous support of people like you and our sponsors:

Atma-Sphere Music Systems, Inc.