![[OPEN-BOX] Whirlwind HotBox Active Reference Direct Box](https://cdn11.bigcommerce.com/s-mmffu4sg6a/images/stencil/1280x1280/products/23717/56779/36270__54526__64404.1692021999.jpg?c=1 "[OPEN-BOX] Whirlwind HotBox Active Reference Direct Box")
![[OPEN-BOX] Whirlwind HotBox Active Reference Direct Box left](https://cdn11.bigcommerce.com/s-mmffu4sg6a/images/stencil/1280x1280/products/23717/56780/36270a__39835__45095.1692021999.jpg?c=1 "[OPEN-BOX] Whirlwind HotBox Active Reference Direct Box left")
![[OPEN-BOX] Whirlwind HotBox Active Reference Direct Box right](https://cdn11.bigcommerce.com/s-mmffu4sg6a/images/stencil/1280x1280/products/23717/56778/36270b__77762__56999.1692021999.jpg?c=1 "[OPEN-BOX] Whirlwind HotBox Active Reference Direct Box right")
![[OPEN-BOX] Whirlwind HotBox Active Reference Direct Box](https://res.cloudinary.com/dicnbk6cz/image/fetch/f_auto/https://cdn11.bigcommerce.com/s-mmffu4sg6a/images/stencil/50x50/products/23717/56779/36270__54526__64404.1692021999.jpg?c=1)
![[OPEN-BOX] Whirlwind HotBox Active Reference Direct Box](https://res.cloudinary.com/dicnbk6cz/image/fetch/f_auto/https://cdn11.bigcommerce.com/s-mmffu4sg6a/images/stencil/500x659/products/23717/56779/36270__54526__64404.1692021999.jpg?c=1 "[OPEN-BOX] Whirlwind HotBox Active Reference Direct Box")
Whirlwind's top-of-the-line DI is an active direct box that operates with batteries or phantom power. Its super-clean front-end circuitry delivers extremely wide and flat frequency response and will reveal hidden harmonics from guitars and basses with high-output passive pickups.
Whirlwind HotBox Features
- 1/4" parallel wired in/out jacks
- Ground Lift switch helps eliminate hum and buzz
- Input switch selects between OFF, ON or ON with 20 dB PAD engaged for connecting to strong line or speaker level signals
- LED indicates "ON" status
- HotBox active reference direct box1
- Input impedance1 Meg Ohms
- Frequency response20Hz - 150kHz +/-3dB
- Residual output noise-115dB
- Max input level+15dBm (battery), +20dB, (48V phantom); add 20dBm with pad engaged
- Power requirements2 9V batteries OR 48V phantom power
- Current drawapproximately 4.0mA DC
![[OPEN-BOX] Radial StageBug SB-1 Compact Active Direct Box left](https://res.cloudinary.com/dicnbk6cz/image/fetch/f_auto/https://cdn11.bigcommerce.com/s-mmffu4sg6a/images/stencil/500x659/products/23935/57381/71602b__25986__23590.1694466326.jpg?c=1 "[OPEN-BOX] Radial StageBug SB-1 Compact Active Direct Box left")