NEW - CJA Series Jack Assemblies For Violin, Viola, Mandolin

       

     



      The new CJA series of jack assemblies is lower, lighter and smaller than any other  clamp on jack available today.

     The jack assembly takes a standard 1/4" plug so that you can use a normal guitar cord.

     The CJAplus jack assembly shown in the photo to the right features a small thumb-wheel volume control at the rear of the jack.

     For use with a mandolin, longer adjuster barrels can be ordered.   
 
 
   

 

                     CJA For Violin, Viola, Mandolin -  Low Profile Output Jack Assemblyy
     We've crafted a composite body for the new CJA. It's lighter and less intrusive in appearance than just about any other clamp on jack on the market. Using the same hardware found on a violin chinrest, the cork padded jack assembly attaches to your instrument securely without damage..
     The jack assembly takes a standard 1/4" plug so that you can use a normal guitar cord.
Specifications::The CJA jack assembly will fit all violins 4/4, 3/4 sizess and all violas. The jack assembly will fit instruments from 1 5/16" (33.4mm) thick to 2 1/8" (54mm) thick. For mandolins, longer barrels are available to expand the maximum fitting thickness to 2 7/16" (62mm).


 

CJAplus For Violin, Viola, Mandolin - Low Profile Output Jack Assembly with Thumbwheel Volume Control
     The new CJAplus allows you to control the volume of your instrument right at your fingertips. In addition to the normal specifications of our standard CJA, we have added a thumbwheel volume control at the rear of the jack assembly
     Using the same hardware found on a violin chinrest, the jack assembly attaches to your instrument securely without damage. The jack assembly takes a standard 1/4" plug so that you can use a normal guitar cord.
Specifications:Thhe CJAplus jack assembly will fit all violins 4/4, 3/4 sizes and all violas. The jack assembly will fit instruments from 1 5/16" (33.4mm) thick to 2 1/8" (54mm) thick. For mandolins, longer barrels are available to expand the maximum fitting thickness to 2 7/16" (62mm).

View instructions for the CJA series 

 

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CJA Series Jack Assemblies For Violin, Viola, Mandolin In Stock Price Quantity
 
CJA Jack Assembly Yes $49.95
CJAplus Jack Assembly with volume control Yes $68.95
Long barrels for Mandolin  Yes  $10.00    
Accessories for the SJA Series
 Schatten Mini Pre Acoustic Instrument Preamp more Yes $69.95
 

Canadian Customers
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Prices shown are in US funds

 
   

Larger Pictures

 

   


CJA front

 


 

 

CJA rear

 


 

CJAplus front


 

CJA rear

 

About Pickups and Amplification


Terminology

Passive Pickup - A piezo pickup.

Impedance - To simplify things as much as posssible we'll say that impedance refers to the range in which an amplifying device can 'hear' a pickup plugged into it.

Preamp - A device specifically designed for use with piezo pickups that increases the signal strength and lowers the impedance of a passive pickup.

Active Pickup - A piezo pickup with an attached preamp.

Microphone Preamp - a device that may be built into P.A.systems and mixers that is designed to work with microphones. These units will not generally work with passive pickups.

'Normal' Electric Bass Amps: A passive pickup has an impedance of approximately 2 mega ohms (2 million ohms) which virtually all 'normal' electric bass amps can generally handle without issue.

 'Acoustic' Amps: may or may not require the use of a preamp with a pickup and that will depend upon whether or not there is a special built in preamp section to that amp that specifically allows for the choice in plugging in either a passive (non-preamped) or active (preamped) pickup. This choice is quite often in the form of pushbutton on the amp's control panel. Many acoustic amps show a selection that may indicate the choice of 'high impedance' and 'low impedance'.

Low impedance in these instances usually indicates that in this range the amp will handle an impedance of 1000 ohms or less - which will allow active pickups with preamps to be used.

High impedance in these instances may indicate an allowable impedance into the 2 or 3 mega ohm range - which will allow passive pickups to be used. Or it may indicate a maximum input impedance allowed of  20,000 ohms or less - which will handle magnetic electric guitar pickups but not passive pickups. You should carefully read the technical specifications of your acoustic amp in order to see what it will do.

P.A. Systems, Mixers: all of these units will require the use of a preamp between themselves and a passive pickup. Microphone preamps built into P.A.'s and mixers are not designed for use with passive pickups and will not work properly.

Computers: Due to the vagaries and variables inherent in the sound cards found in computers, the only thing that we can advise is that a preamp will almost certainly be necessary.