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ID: 091 A Jazz Bass Upgrade for 3-pickup coil instruments
This assembled and tested black acrylic Jazz Bass upgrade contains our high performance T3-Switch to give you 35 pickup tones on your instrument with three separate pickup coils. This can be either three single-coil pickups, or one 4-wire humbucker pickup and one single-coil pickup.
This product is completely wired and contains our VT-1 stacked Volume-Tone Control Assembly (wired for right-hand use) with metal knobs, a .047 mfd capacitor and input jack. Following the downloaded Installation Instructions it will take you about fifteen minutes to remove your existing control plate, connect your pickup wires to the solderless terminal strip — and a HUGE, expanded 35 pickup tone dimension will instantly open up to you. This product includes everything you need to install this upgrade into your right-hand or left-hand instrument.
It gives you two groups of three mini switches. One group controls each of the pickup coils, letting you turn each one on and off (both in normal phase and reverse phase) with all combinations in a parallel circuit. The other group lets you put select pickup coils into a series circuit to create compound/humbucker heavy-metal pickup tones. Connecting your pickup and input wires to this product uses a no-soldering-needed approach.
NOTE: Some instruments made in china may require minor body cavity routing because the body cavity may not be deep or wide enough to permit this product to be mounted flush.
Instruments That Can Be Upgraded
Instruments that can be upgraded with this product include (but is not limited to):
- Any Jazz Bass or similar instrument with either one 4-wire humbucker pickup and one single-coil pickups; or three single-coil pickups
Special Note: If your instrument contains any of the following items, our product does not include them:
- greasebucket circuit
- passing lane switch
- S-1 Switch
- push-push mini switch
- TBX or mid boost circuit
Using The Upgrade
Here is how you use the controls of our T3-Switch product.
There are two "groups" of switches: (SW4, SW5, SW6) -and- (SW1, SW2, SW3)
The first group of switches (SW1, SW2 and SW3) are ON-OFF-ON switches used to turn an individual pickup Off and On. The middle position of each switch is Off. The down position turns the pickup On (in normal-phase) and the Up position turns the pickup on (in reverse-phase). Pretty simple, don't you agree?
Switch SW1 controls the Bridge pickup,
Switch SW2 controls the Middle pickup and
Switch SW3 controls the Neck pickup.
When you use these three switches (while switches SW4, SW5, SW6 all in the Down position), you will get 13 different pickup tones from the various combinations of three pickup coils being Off or On (either in normal-phase or in reverse-phase). These pickup tones are also due to the combination of pickup coils being in a Parallel circuit.
The second group of switches (SW4, SW5 and SW6) are ON-ON switches are used to put select pickups into a Series circuit. Two things to remember when using this second group of switches:
First, putting two or three pickups in Series circuit creates a "Compound" (i.e., Humbucker) pickup that gives you about 8 to 15 percent More output (think Heavy Metal/Jazz tone).
Second, because the pickups are in a Series circuit, ALL of the affected pickups that are in a Series circuit MUST be On (either in normal-phase or reverse-phase). Any non-Series circuit pickup can be either Off or On (either in normal-phase or reverse-phase).
Using the Second Group of Switches
Starting with switches SW4, SW5 and SW6 in the Down position;
If you only put switch SW4 into the Up position, this puts both the Bridge pickup and Middle pickup into a Series circuit. This means you MUST turn On both the Bridge pickup and the Middle pickup using switches SW1 and SW2 (either in normal-phase or reverse-phase) to hear any sound. In this example, the Neck pickup (controlled by SW3) can be either Off or On (in normal-phase or reverse-phase).
If you only put switch SW5 into the Up position, this puts both the Bridge pickup and Neck pickup into a Series circuit. This means you MUST turn On both the Bridge pickup and the Neck pickup using switches SW1 and SW3 (either in normal-phase or reverse-phase) to hear any sound. In this example, the Middle pickup (controlled by SW2) can be either Off or On (in normal-phase or reverse-phase).
If you only put switch SW6 into the Up position, this puts both the Middle pickup and Neck pickup into a Series circuit. This means you MUST turn On both the Middle pickup and the Neck pickup using switches SW2 and SW3 (either in normal-phase or reverse-phase) to hear any sound. In this example, the Bridge pickup (controlled by SW1) can be either Off or On (in normal-phase or reverse-phase).
If you put both switches SW4 and SW6 into the Up position, this puts all three pickups into a Series circuit. This means you MUST turn On ALL of the pickups using switches SW1, SW2 and SW3 (either in normal-phase or reverse-phase) to hear any sound. This gives you an incredible overdriven bass sound in spades. It also gives you Brian May's heavy metal tones.
In summary, the combinations of these switches will give you 35 pickup tones.
Here Is What Is Included
- One (ID: 091a) Jazz Bass Upgrade with our T3-Switch and VT-1 Volume-Tone Control Assembly
- 12" (30.48cm) insulated 22-gauge red wire (to extend existing wires if needed)
- 12" (30.48cm) insulated 22-gauge black wire (to extend existing wires if needed)
- 4 yellow/clear solderless crimp connectors (UY2)
- 2 grey wire nuts (71B)
- URL to download easy-to-follow instructions from our website Document Library
Tools You Need To Install This Product
You need the following tools (not supplied with purchase). Purchaser assumes all risk of liability with respect to the purchase, installation and use of this product.
- Wire cutters / wire strippers
- 5/64" (2mm) hex (allen) wrench for volume/tone knob set screws
- Small pliers
- Small phillips screwdriver, small straight slot screwdriver
To Purchase this Product
Shipping: All products are shipped via United States Postal Service. Allow 7-10 days for delivery. Shipping Details: Shipping generally occurs within three business days of payment.
Saturday, Sunday and postal holidays are not business days.
Notes: Ask questions before purchasing. Purchaser assumes all risk of liability with respect to the installation and use of these products.
This switching system cannot be used with active (battery-powered) pickups or pizeo pickups.
Active (i.e., battery-powered) pickups manufactured by Bartolini, EMG, Seymour Duncan, etc. will not work with our growing family of high performance patented Pickup Switch UpgradeTM products. These active pickups use a design that prevents any of the pickups from being put into series because it sends -9VDC back to the first pickup, shorting out the circuit. Although some manufacturers now sell "add on" products to give you some of the functionality that our products automatically provide, this design limits their versatility and increases the cost to the musician. Many people who have tried these products remove them because they are "too sterile sounding". Anything that uses batteries will likely go dead at a crucial time - like when you're performing or in the recording studio. Bill Lawrence was right when he said, "Batteries belong in flashlights."