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>>> IMPORTANT SAFETY AND LIABILITY NOTICE <<<

OWNERSHIP DISCLAIMER

Radial Engineering manufactures products that are safe for use 

when connected as per the instructions in our owner’s manuals. 

Manuals are freely available for download on our web sites. As 

it is impossible for Radial to ensure the user is following these 

instructions, the user must take full responsibility in the suitability 

of purchasing a Radial product for his or her use.

For safe operation, the Headbone MUST be properly grounded, not 

only to provide shielding from hum and noise, but also to prevent 

any SHOCK HAZARD. The Headbone is connected to the earth 

ground (AC-3rd ground pin) via its connection to Amp-1. You must 

make sure that both amplifiers being connected to the Headbone 

are properly grounded and equipped with a 3rd safety pin on the 

AC plug. It may be unsafe to use the Headbone with vintage am-

plifiers equipped with a 2-prong plug or amplifiers whose 3rd pin 

has been removed or lifted.  For safety, always consult a qualified 

technician on making proper connections to the equipment that 

you wish to connect.

It is important to note that all Radial products that function using 

AC or DC electrical current, are sold with a government agency 

approved power supply for use around the world (i.e. UL, CSA etc.). 

We insist that Radial products be used with equipment that carries 

the same or similar safety government approvals. If you plan to use 

equipment that has not been approved by a government-approved 

electrical safety body, you are doing so at your own risk.

By purchasing this product, you clearly understand that you are tak-

ing full responsibility for the use of this product. If, after purchasing 

this product from your dealer, you are not comfortable in accepting 

this responsibility, we ask that you return the product within 7 days 

to the dealer for refund, credit or exchange. Consult your dealer on 

their policy regarding this matter.

Radial Engineering accepts no responsibility (consequential or

inconsequential) for damage or injury caused by improper con-

nections, user error, using improperly grounded amplifiers, or in

-

jury caused by failure of the Headbone or any component inside. 

The use of the Headbone implies that the user/owner agrees to 

all of the terms stated within this document, and has made the 

decision to keep the Headbone under these terms, and waives 

his/her rights to a liability claim against Radial Engineering (or as-

sociated companies or directors) for any damage or injury caused 

while using the Headbone. Please read the Headbone warranty 

for further details.

Summary of Contents for Tonebone Headbone VT

Page 1: ...Headbone VT www tonebone com User Guide Radial Engineering 1588 Kebet Way Port Coquitlam BC V3C 5M5 tel 604 942 1001 fax 604 942 1010 info radialeng com www radialeng com...

Page 2: ...rent are sold with a government agency approved power supply for use around the world i e UL CSAetc We insist that Radial products be used with equipment that carries the same or similar safety govern...

Page 3: ...Headbone is engineered to ensure the safe operation of your amps under demanding live performance conditions To take advantage of the wonderful features that have been incorporated into the Headbone...

Page 4: ...are no right answers as the possibilities are endless So where do you start You need a concept The following is a setup concept that will help get those creative juices flowing It combines simplicity...

Page 5: ...e chart two amp heads one distortion pedal one speaker cabinet six distinct amp tones Tone 1 Tone 2 Tone 3 Tone 4 Tone 5 Tone 6 TYPE OF SOUND Clean Rhythm Solo Distortion Crunch Rhythm change amp ch S...

Page 6: ...factory set in a lifted position to eliminate ground loops 6 Slingshot Remote Input This input is used to remotely control the Headbone from your pedalboard using a standard contact closure foot switc...

Page 7: ...ded speaker cables We recommend using a minimum of 14 AWG cables for speaker cable runs under 6 feet Larger gauge cables should be used for longer runs Never use shielded guitar cables for speaker con...

Page 8: ...output connect to the Headbone s From Amp 2 Output jack This brings the signal from amp 2 back to the Headbone 7 From the Headbone s To Speaker Cabinet jack connect to your speaker cabinet You are no...

Page 9: ...ed The reason we do this is that when you are driving a pre buffered signal there is no advantage to buffering the signal again In some cases two buffers in series could add distortion or noise If you...

Page 10: ...binet as this will reduce signal loss and improve the transient response Your Headbone has been designed to work with amps whose maximum output is 100 watts RMS The power is limited by the relay that...

Page 11: ...arm You get shorter tube life Higher speaker impedance Connecting a 16 Ohm cab inet will make amps sound less punchy warm You get longer tube life Rated impedance 8 Ohm Grounding for Safety The Headbo...

Page 12: ...dbone s Slingshot Remote is a simple contact closure that al lows a standard latching footswitch to remotely toggle the Headbone s status from amp 1 to amp 2 Most standard mono style footswitches will...

Page 13: ...acceptable as they change the tone of the instrument Tonebone products use opto couplers on the hi impedance circuits to eliminate all switching noise and relays on the speaker level signals where hig...

Page 14: ...ingshot compatible A If your external footswitch employs a basic latching type switch with a or TRS connector it will in all likelihood be compatible If it employs some type of multi pin connector or...

Page 15: ...Radial Engineering Ltd Headbone User Guide 12 Notes...

Page 16: ...o an authorized repair centre and you must assume the risk of loss or damage Acopy of the original invoice showing date of purchase and the dealer name must accompany any request for work to be perfor...

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