Reverb pedals either try to emulate the sound of a room by mimicking the way sound bounces off the walls floor and ceiling, or they mimic classic effects like the spring reverb that try to recreate the sound of different rooms.

Whirly Verb doesn’t emulate just any room – or even different types of rooms. This amazing reverb from Denmark’s T-Rex Effects was dreamed up to recreate the most beautiful room in the world.

Reverb to die for

Whirly Verb starts with most gorgeous reverb sound you’ll ever hear for a guitar. You can adjust the amount of reverb and the decay time – but no matter how you set it, it just sounds warm, rich and delicate. And isn’t that the way it should be? If you want to put your guitar in an emulated room, for heaven’s sake, put it in a room that makes your guitar sound divine!

A stranger kind of beauty

You might want to sound like you’re playing in the halls of heaven most of the time, but what about those days (or songs) where you’d rather sound slightly less angelic? Whirly Verb’s MODULATION function lets you take that perfect reverb and thicken, twist and turn it to sound like something strange is going on... Combined with the REVERB and DECAY controls, MODULATION offers you a world of strange reverb sounds that will inspire your creativity and fascinate your audiences.

Only available at Guitar Center & Musician's Friend

  • Best analog sounding Reverb
  • Related to the famous T-Rex Roommate
  • Tremendous ranges - can be set to emulate pretty much any size room you can imagine
  • The modulation effect uses a simple warm, vintage chorus circuit
  • Great for guitarists with experimental tendencies




Input impedance @ 1KHz Higher than 1M Ohm
Output impedance @ 1KHz Lower than 1K Ohm
Power supply 9V DC (T-Rex FuelTank)
Minimum power supply voltage 8,5V DC
Maximum power supply voltage 12,5V DC
Current draw @ 9V DC 90 mA
Maximum input signal V p-p 2V p-p
Battery type 9V battery 6F22
Battery life 30-60 minutes
External connectors input jack, output jack, 9V DC jack
Controls on/off, volume, reverb, modulation, decay
Pedal size incl. knobs (W x H x D) 100 x 55 x 120 mm / 3,9 x 2,2 x 4,7 inch
Weight excl. packaging 0,335 kg / 11,8 oz