You asked:

Are there any vibrators that provide powerful rumbly vibrations, or that let you control the frequency and intensity independently? Most seem to rely on rotating unbalanced weights, so upping the power also ups the speed — which means buzzier vibes.

I prefer deep, rumbly sensations, but that usually means I’m stuck using lower power.

I’m not looking for something insertable, so a wand or bullet would be ideal, if that even exists. Any suggestions?

Grace:

Yep, you can totally enjoy both strong yet rumbly vibrations. It usually just depends on the quality of the item, with buzzy vibrations being more common in cheap vibrators. Look at luxury brands like We-Vibe, Magic Wand, or Fun Factory — their motors are consistently deep and rumbly.

As for independent control of frequency and intensity, there's only one toy I know of like that: the Hot Octopuss KURVE. It’s got two motors, one for bass (rumbly or low frequency) and one for treble (buzzy or high frequency), and you can tweak them separately to find your sweet spot. It’s technically a G-spot vibe, but honestly, the soft broad head makes it amazing as a clit toy or mini wand too.