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Bassbone V2 Preamp

Radial Engineering Ltd.

7

USING A SECOND BASS

Many players employ two basses when they perform. These typically 

include a traditional passive bass such as a Fender P-Bass

®

 and a new 

generation 5 or 6 string with active pickups. These basses produce very 

different  output  levels  and  tonal  ranges.  This  poses  a  problem  when 

switching from one instrument to the other, as the amplifier settings must 

be dramatically adjusted to suit each instrument. 

The Radial Bassbone V2 solves this problem because each channel 

features separate level and equalization controls. You can preset 

channel-A for your active bass and use channel-B, with it's enhanced 

EQ, to shape the sound of your passive bass. 

Connecting a second bass to the channel-B input jack automatically 

changes the Bassbone V2 into a two instrument preamp. With two 

basses, use the SELECT footswitch to transition between instruments. 

INPUT-A

INPUT-B

A/B

SELECT

Adjust the 3-band EQ settings to suit your second bass and use the 

LEVEL-B control to match the volumes.

CONNECTING PIEZO PICKUPS

The trouble with most piezo pickup systems is that they are not very 

faithful to the original tone when you plug them directly into a regular 

instrument amplifier or direct box. The sound is often thin and peaky. To  

accommodate acoustic upright players that use piezo pickups we added 

the Radial PZB™ piezo booster to channel-B. The PZB booster allows you 

to connect a piezo transducer directly to the Bassbone.

The recessed PZB switch is located next to the channel-B input jack and 

is used to turn the piezo booster on/off. Use a small screwdriver to access 

the switch. When the PZB switch is 

set to the outward position the piezo 

booster is off and channel-B accepts 

standard electric bass signals from 

active or passive magnetic pickups. 

Pushing the PZB switch inward turns 

the piezo booster on increasing the 

input impedance to 10 meg-ohms 

and boosting the gain by 10dB. The 

higher impedance widens the piezo's 

frequency response to bring out your 

instruments natural tone. 

Содержание R800 7071 00

Страница 1: ...USER GUIDE BASSBONE V2 Radial Engineering Ltd 1845 Kingsway Ave Port Coquitlam BC V3C 1S9 Canada Tel 604 942 1001 Fax 604 942 1010 email info radialeng com www radialeng com ...

Страница 2: ...o the PA or recording system The Bassbone has been developed to help you take control of your live performance and open the door to creativity in the studio Before you get started we kindly ask that you take a few minutes to read the user guide This explains many of the functions and how to get the most out of them If after reading you find yourself asking questions we suggest you visit the Bassbo...

Страница 3: ...a second instrument to the INPUT B jack turns the Bassbone into a two instrument preamp You can toggle between instruments by stomping on the footswitch INPUT A INPUT B A B SELECT 3 Switching between upright bass and electric bass The Bassbone is equipped with a special PZB booster circuit that allows a passive piezo transducer to connect directly to INPUT B This lets you quickly transition from a...

Страница 4: ...e easy to see LED indicator 7 LOOP ASSIGN Three position switch used to assign the effects loop to one or both channels FEATURES 8 HPF 2 High pass filter on channel B rolls off excessive low frequency resonance and cleans up signal Choose between 60Hz 80Hz and off 9 LOOP FOOTSWITCH Turns the effects loop on and off Features a large bright LED indicator 10 EQ 1 Three position switch selects between...

Страница 5: ...ng on the fly or used in conjunction with the mute footswitch for silent tuning 18 SEND RECV Send and receive jacks for the effects loop 19 180 XLR Recessed switch reverses pins 2 and 3 at the balanced XLR output to phase align sound with PA or to reduce feedback 20 BALANCED OUT Direct XLR output sends the post EQ Bassbone sound to the PAor recording console 21 LIFT Recessed ground lift switch dis...

Страница 6: ...e functions are controlled by set forget switches on the side panels These switches are recessed to prevent accidental use and can be accessed with a small screwdriver when needed Ensure all five of these switches are set to their outward positions to start with Use a small screwdriver to access the set n forget Using the cable clamp prevents accidental power disconnection There is no power switch...

Страница 7: ...ur amplifier If the channel A LED is not already illuminated press the SELECT footswitch INPUT B INPUT A OUTPUT B A BOOST LOOP BASS MID HIGH LEVEL B LEVEL A DRY WET Slowly turn the gain up on your amplifier and test at a low volume to ensure everything is working before turning up the volume to a comfort able listening level USING ONE BASS With a single instrument connected to INPUT A the Bassbone...

Страница 8: ... and adjust the level to match channel A Use the three band EQ to create a different tonal response from channel A Stomp the SELECT footswitch to toggle between channels and compare sounds INPUT B INPUT A B A OOST LOOP BASS MID HIGH LEVEL B LEVEL A DRY WET The three band EQ can dramatically increase or decrease the amount of gain depending on the settings For instance rolling off low end with the ...

Страница 9: ...B A B SELECT Adjust the 3 band EQ settings to suit your second bass and use the LEVEL B control to match the volumes CONNECTING PIEZO PICKUPS The trouble with most piezo pickup systems is that they are not very faithful to the original tone when you plug them directly into a regular instrument amplifier or direct box The sound is often thin and peaky To accommodate acoustic upright players that us...

Страница 10: ...T footswitch can be converted to a mute that turns off the AMP and XLR direct outputs You can use the mute footswitch to put one bass in standby mode while changing to another instrument or tune in silence using the TUNER output The recessed BOOST MUTE switch located on the side next to the output lets you choose between the boost or mute functions Push the switch inward to convert the footswitch ...

Страница 11: ...to turn the blend function on Depending on your instrument the pickups can connect in a couple of ways If your bass has separate outputs for each pickup you can simply connect to channels A and B using standard coaxial instrument cables PIEZO MAG INPUT B INPUT A OUTPUT B A BOOST LOOP BASS MID HIGH LEVEL B LEVEL A DRY WET Some basses use a stereo jack to output both pickup signals If your bass uses...

Страница 12: ...ur amp but the effects will not be sent to the PA system if using the balanced XLR output PA SYSTEM INPUT B INPUT A OUTPUT B A BOOST LOOP BASS MID HIGH LEVEL B LEVEL A DRY WET To take things one step further the Bassbone is equipped with an unique effects loop designed specially for bass The effects loop lets you insert pedals by depressing a footswitch and mix the effects with the original bass s...

Страница 13: ...the sound You cannot accidentally mute your sound because there are no pedals connected Start with the 3 position LOOP switch on the top panel set to BOTH This way the effects will be heard on both channels You can use this switch to assign the effects to one channel exclusively The LOOP WET DRY control lets you dial in as much of the effects as you like and helps preserve the original bass tone S...

Страница 14: ...our miniature preamp All your EQ settings are now right at your feet It s important to note that because the direct output is post everything all of the Bassbone s EQ level and effects loop settings will be heard This is particularly advantageous when playing gigs without a sound engineer An example would be on a solo where the engineer would normally increase the bass volume By engaging the Bassb...

Страница 15: ...wo set forget switches are recessed to prevent accidental use so use a small screwdriver to access them SPECIFICATIONS 13 Audio circuit type Discrete class A FET input with low noise ICs Frequency response 20Hz 18kHz Total harmonic distortion 0 05 15dBu Intermodulation distortion 0 2 20dBu Dynamic range 85dB Input impedance Input A 220K Input impedance Input B 220K 10M Output impedance 300 Ohms at...

Страница 16: ...showing date of purchase and the dealer name must accompany any request for work to be performed under this limited and transferable warranty This warranty shall not apply if the product has been damaged due to abuse misuse misapplication accident or as a result of service or modification by any other than an authorized Radial repair center THEREARE NO EXPRESSED WARRANTIES OTHER THAN THOSE ON THE ...

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