All in one audio line tester/generator/intercom Since its introduction in 1997 the Qbox has become one of Whirlwind's most successful "Black Boxes" ever.. The Qbox is the all-in-one audio line tester... View more

Four-channel version of Whirlwind's popular pcDI in a single space, rack mount enclosure Each of the four channels has stereo, unbalanced line level inputs that are converted to balanced mic level,... View more

2-channel USB direct box converting digital audio to balanced XLR outputs, 16-bit/48kHz, ground lift, stereo/mono switch, -20dB pad, and USB-powered. The Whirlwind pcUSB is a versatile 2-channel... View more

4-channel headphone class-A/B stereo amplifier, stylish tabletop design The HATT4 is a sonically superior, four output stereo headphone amplifier. The outputs deliver clean, high power signal capable... View more

Speaker tester with pink noise generator, Speakon, XLR, and banana outputs, DC Ohms test, LED impedance display, battery-powered, compact design, and polarity check. The Whirlwind Cab Driver is a... View more