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Whirlwind QBOX - Audio Line Tester/Cable Tester/Test Tone Generator

Whirlwind QBOX - Audio Line Tester/Cable Tester/Test Tone Generator
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Whirlwind QBOX Overview

The Whirlwind Qbox is an in-line, 9V battery-operated beltpack audio testing utility device, designed for live sound, studio maintenance, and installation applications.

The Whirlwind Qbox includes a microphone, a speaker, a test tone generator, outputs for standard headphones, a TT bantam jack, a 1/4" jack for a line-in or a 2k Ohm(telephone) earpiece out, along with voltage presence LEDs for confirming phantom or intercom power.

The Whirlwind Qbox is suitable for multiple purposes including hands-free intercom use when connected to another Qbox. It provides a mic- or line-level tone for activating a signal path, or identifying a specific cable in a pile of cable ends, and can also be used to monitor a standard 3-wire intercom feed of talkback from the main audio console.

The SOURCE section of the Qbox lets you send a tone or the signal from the built-in condenser mic at mic or line levels
The SPEAKER volume control lets you confirm incoming signals at mic or line level
Built-in amplifier provides up to 60dB of gain
Attenuator switch selects output level to XLR or 1/4 in. outputs
Tone/Internal Switch selects source to be provided to XLR and 1/4 in. outputs
Volume control adjusts level sent to speaker or headphone output
Stereo Phone Jack allows the use of stereo or mono headphones while disconnecting the internal speaker
UPC: 692465004220

Whirlwind QBOX Specs

Input Connections1x XLR F
1x TT Bantam
Output Connections1x XLR - male
1x 1/4" unbalanced
1x 1/4" Stereo Phone Jack
Input Impedance40 kOhms
Output Impedance950 or 20 kOhms
Output Level60dB of gain
THD & NoiseNot specified by manufacturer
Power and Battery9V 100mA Battery Eliminator
DimensionsNot specified by manufacturer
WeightNot specified by manufacturer
Packaging Info
Package Weight0.645 lb
Box Dimensions (LxWxH)6.2 x 3.6 x 2.15"

Whirlwind QBOX Reviews

Analog audio tester

By nick
Rated 4 out of 5
Date: 2020-12-17

good solid simple to use product an must for all soundies gear bag

No Pro Engineer should be without this tool.

By Giorogio
Rated 5 out of 5
Date: 2016-08-17

This is a primary tool in trouble shooting audio problems quickly. With multiple functions one can check for phantom power, signal at the end of a snake or long cable, and send a test signal to check lines. And even use two of them for a quick intercom between FOH and Monitors.

Test gear needed

By Anonymous
Rated 5 out of 5
Date: 2016-02-22

We ordered the Qbox from Whirlwind for test equipment, the features of cable testing, tone generator and built-in speaker were the reasons for the purchase. I had intended its first use to be testing a press feed plate but another tech needed to test audio sends to pull down ceiling boxes for recording devices and was very pleased on the change from an AC powered speaker he originally planned on using to the much smaller battery powered unit and the size to a smaller more manageable sized unit for testing in several location on site decreasing the clients down time and techs time on site. The Qbox is tested and true piece of test gear throughout many industries and I don't think I would change anything. I definitely recommend this to anyone with audio in their profession.

Swiss army knife of audio

By Buckeyesoundguy
Rated 5 out of 5
Date: 2015-12-09

If you do live production audio it is something you can never live without! Industry standard

A must have.

By Thomas
Rated 5 out of 5
Date: 2019-12-08

If you do any kind of location sound, this is a must have for trouble shooting

good product

By Randall
Rated 5 out of 5
Date: 2018-01-10

I have owned a Qbox for 10 years now and wanted to upgrade to the newer one to get the TT option. �My 10 year old box still works great and I still use use it as a throw down remote speaker. �wonderful product

Would highly recommend!

By Anonymous
Rated 5 out of 5
Date: 2017-01-19

This is the best tester I have found and used. As an audio engineer it gives me everything I need to trouble shoot any problem on the job.


By Anonymous
Rated 5 out of 5
Date: 2016-09-19

It's a standard for a reason. Every audio technician needs one in their bag.

See any errors on this page? Let us know



does whirlwind Qbox use for call transmission?
Asked by: Anonymous
No it does not Tone and line test only It works great for that application
Answered by: David S.
Date published: 2018-08-27


This unit is rev2 or rev3?
Asked by: Anonymous
Rev 3
Answered by: Ronald R.
Date published: 2018-08-27


Asked by: ERIC W.
Whirlwind has excellent service for anything beyond the generic connectors and such. The pcb is surface mount so if any of the active electronics have failed it's easier to replace.
Answered by: Edward R C.
Date published: 2020-06-21
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