Whirlwind HOTBOX Product Information

WHIRLWIND HOTBOX Rev3 (mid 2001)

INPUT JACK
Connecting signal source to this jack switches on the battery power.

LED
When input is plugged in with battery power, indicates sufficient battery power and that unit’s
power is switched on. Will always remain illuminated when phantom power is present.

THRU

A “Y” connection or “loop through” from the input.

INPUT SELECT SWITCH
3-position switch that controls the battery on/off function and applies 20dB attenuation to the
input when required.
BATT OFF: Battery power is turned off. The HotBox will still operate with phantom power
when the switch is in this position.
BATT ON: The HotBox will operate on either battery or phantom power. (Battery may
remain connected when operating with phantom power.)
PAD: The HotBox will operate on either battery or phantom power and an additional
20dB of attenuation is applied to the input signal. Use this position for
connecting to strong line level signals or to power amplifier outputs.

(WARNING! In PAD mode, the HOTBOX does not supply the proper amplifier load required by
most tube type amplifiers. Do not use a tube amplifier’s speaker output alone with the
HOTBOX. You must also have a speaker or appropriate dummy load connected to avoid
possible damage to the amplifier.
The case of the Hotbox is connected to PIN 1 of its XLR output (system ground). Avoid

GND LIFT

Disconnects the ground between the input and the XLR output when set to the LIFT
position to help eliminate hum. Ground remains connected when set to the GND
position. Can be used when powered with either battery or phantom power.

XLR OUTPUT

A male XLR, provides a balanced low impedance signal for connection to balanced,
low-Z equipment (mixing console, workstation, etc.)

CHANGING BATTERIES

Remove bottom cover screws and slide tray out. Clips can be plugged together if using
only phantom power. CAUTION: Use only the #8-32 by 1/4” screws provided. Using longer screws will

short out the circuit board and void the warranty.

WARRANTY
This product is warranted to be free of defects in materials or workmanship to the
original purchaser for a period of 2 years from the date of purchase. Should warranty
service be required, return the unit postage paid along with the original sales receipt to:

Whirlwind Music Dist., Inc.
99 Ling Road
Rochester NY 14612

Whirlwind will, at its option, repair or replace the unit. This warranty does not cover
damage resulting from abuse, unauthorized modifications or use of the product in
unintended applications.

SPECIFICATIONS: BATT OFF/ON PAD
Maximum Input Level +15dBm (battery) +35dBm (battery)

+20dBm (48V phantom) +40dBm (48V phantom)

touching the case of the HotBox to the metal chassis of instrument amplifiers.

Gain Structure -20dBm -40dBm
Residual Noise -115dBm -115dBm
Frequency Response +/- 3dB, 20Hz to 20kHz +/- 3dB, 20Hz to 20kHz

T.H.D. + Noise .002% .002%
Output Impedance 150 Ohms 150 Ohms
Power Requirements 48v phantom power or two 9V alkaline type batteries
Battery Life Approximately 300 hours
Current Draw < 4.0mA DC