# TUBES(pre, power, rectifier) share your list of tubes

**URL:** <https://forum.headphones.com/t/tubes-pre-power-rectifier-share-your-list-of-tubes/4946>\
**Category:** Miscellaneous\
**Created:** [January 20, 2020, 3:47am UTC](https://forum.headphones.com/t/tubes-pre-power-rectifier-share-your-list-of-tubes/4946 "2020-01-20T03:47:14Z")\
**Posts on this page:** 1\
**Showing post:** 91

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**Author:** ![bpcarb](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.headphones.com/bpcarb/32/16496_2.png) [@bpcarb](https://forum.headphones.com/u/bpcarb)\
**Post date:** [March 12, 2021, 5:17pm UTC](https://forum.headphones.com/t/tubes-pre-power-rectifier-share-your-list-of-tubes/4946/91 "2021-03-12T17:17:03Z")

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> [@ZMF Pendant - Tube Headphone Amplifier - Official Thread](https://forum.headphones.com/t/zmf-pendant-tube-headphone-amplifier-official-thread/4791/522):
>
> What is “sag factor”?

These links offer a good discussion. Sag is considered more for guitar amps.

[https://www.kcanostubes.com/content/rectifier-comparison-and-interchangeability-chart](https://www.kcanostubes.com/content/rectifier-comparison-and-interchangeability-chart)  
[https://www.aikenamps.com/index.php/what-is-sag](https://www.aikenamps.com/index.php/what-is-sag)

> [@PaisleyUnderground](#):
>
> If I want speed and rhythm, do I want less sag?

You’d want less sag, but it’s relative. If you can hold on for a few hours, I’ll share what tubes I’ve used with my Mogwai SE. I’m a happy camper.

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