Townshend Pods - How many do I actually need per component for max effectiveness?

The 6 pound DAC might be too light as some compression is needed. You might try them under a heavier support. Have you tried Nobsound springs? They're a lot cheaper and work well.

Do you have any experience with this or is 3 something you’ve read about? 
 

Thanks for the response.

Yes. Check my Virtual System. I have 3 Nobsounds on everything. The Townshends are reportedly somewhat better as they are more damped. I tried damping the Nobs but preferred them loaded to 30% with no damping. There are a few threads on the subject including mine. https://forum.audiogon.com/discussions/springs-under-turntable

Haven’t tried Nobsounds, only Isoacoustics Orea, which have made a positive impact. I have someone interested in buying my Orea’s and figured I’d try Townshends.

As for the lightweight DAC (6lbs), they make an AA size which is for 1.5lbs - 2.8lbs.

I like to try the less expensive route! Many of the expensive solutions use the same fundamental physics.