What amp settings do you need for Led Zeppelin?
It depends on the song. On a generic five-knob amp, Stairway to Heaven starts at Gain 5.5, Bass 5, Middle 7, Treble 6, Presence 5, Reverb 2; Whole Lotta Love starts at Gain 6, Bass 5, Middle 6, Treble 6, Presence 6, Reverb 2. These are starting points, not the settings used on the records.
What gear did Led Zeppelin use on these songs?
Stairway to Heaven: 1959 Fender Telecaster; Supro combo, possibly a Marshall. Whole Lotta Love: Gibson Les Paul; Vox Super Beatle heads, Rickenbacker Transonic cabinets. Each song page lists the sources behind its rig.
Can you get the Led Zeppelin tone without the original gear?
Yes. What carries these sounds is the gain structure, the EQ curve, the pickup position and the order of the effects, and all four can be rebuilt on other equipment. Tonelify rewrites each starting point for the amp and guitar you own.