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In the Forum: Audio Discussions
In the Thread: Small SET’s bass, besides everything- is it about power?
Post Subject: Importance of OPT and type of tube for SET amp bass performancePosted by Rewind on: 8/23/2013
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I am looking into building a 45 tube SET amp and I keep reading about how important a good output transformer is. I read that cheaper output transformers like Hammond can be okay for mids and highs, but it will also reduce bass performance. If one would want to cram as much bass out of a SET amp, then a change in output transformer would be a good idea. That would probably require further adjustments in the amp. Then again, I would not use a 45 tube for bass anyway, since I find even 2A3 tubes have better bass than 45 tubes.

I will probably use 6L6 or EL84 for bass. My 6L6 SET amp, without a tube rectifier, is incredibly powerful with no sloppy bass, compared to the rest of my SET amps. I will use an Eminence LAB 12 in my basshorn. 89dB sensitivity is not the best, so I will need the power of the 6L6. Will be interesting to see if it will be powerful enough. The hornloading will help a little.

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