Aquarian Drumheads Regulator Ported Black Glass Bass Drumhead - 20 inch - with 4 3/4 inch Offset Port Hole

Add clean low end back to your Aquarian Super-Kick or other modern bass drum resonant head with the Aquarian Regulator. This 10-mil single-ply head features Aquarian's Floating Muffling System: an internal foam ring that keeps unwanted resonance from muddying your tone. The 4-3/4" offset hole dries out the sound a little, and also provides access for a microphone and extra damping materials if you need them.

Aquarian Regulator 20" Bass Drum Resonant Head Features:

• A good match for "scooped" modern batter heads
• Goes great with the Aquarian Super-Kick and Impact
• 10-mil, single ply
• Powerful bass
• Thick low-midrange
• Internal muffling system damps unwanted overtones
• 4-3/4" offset hole dries out the sound, provides mic access