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Passive loudspeaker crossover with Tufnol Board

Tufnol IP/13: Passive crossover boards.

     A range of loudspeaker crossover boards designed to offer the DIY enthusiast an easy way to mount crossover parts.  The components are mounted on 2.5mm Tufnol board.  This is available in a number of different board sizes for self assembly.
    There are two options for assembly:
     (1) Purchase the individual components, i.e. the board and turret tags, drill the tag locations and insert the pins as required. 
     (2) Make use of QTA's in-house crossover services re layout and tag insertion.
Turret Tag inserted into Tufnol board In either case you get to assemble the crossover components onto the board yourself.
The turret tags may be inserted from either side of the board.  However, the best visual layout may be achieved  when the tags are inserted on the reverse side of the board.  The crossover parts are threaded through the tag centre hole from the front.
     The centre hole has a nominal diameter of 1.19mm.  This will accept components with a 1.0mm wire diameter threaded through the centre.
    The connecting cables for the speakers may be led out or connected from either board face / surface.
    A number of drill sizes are available to fit the crossover boards to fit the speaker cabinet interior and for use with the turret tags.  The sizes and usage are indicated below, see the tabled information.

     Also available for speaker to crossover connection, OFC multi-stranded TPE insulated copper cable in 2.5mm (for bass sections) and 1.0mm for (tweeters). Highly flexible and the insulation doesn't peel off when you solder it. Available in various colours, see table:-

Note:- Components and mounting holes as above are for illustrative purposes only. Boards are supplied undrilled.


Passive loudspeaker crossover boards and components.

Order Code Description Price GBP
XOVERB1 Tufnol, 2.5mm plain board, no holes, cut to size (100 * 100)mm 1.23 ea
XOVERB2 Tufnol, 2.5mm plain board, no holes, cut to size (100 * 125)mm 1.54 ea
XOVERB3 Tufnol, 2.5mm plain board, no holes, cut to size (100 * 150)mm 1.85 ea
XOVERB4 Tufnol, 2.5mm plain board, no holes, cut to size (100 * 175)mm 2.15 ea
XOVERB5 Tufnol, 2.5mm plain board, no holes, cut to size (100 * 200)mm 2.46 ea
     
XOVERB6 Tufnol, 2.5mm plain board, no holes, cut to size (125 * 125)mm 1.92 ea
XOVERB7 Tufnol, 2.5mm plain board, no holes, cut to size (125 * 150)mm 2.31 ea
XOVERB8 Tufnol, 2.5mm plain board, no holes, cut to size (125 * 175)mm 2.69 ea
     
XOVERB9 Tufnol, 2.5mm plain board, no holes, cut to size (150 * 150)mm 2.76 ea
XOVERB10 Tufnol, 2.5mm plain board, no holes, cut to size (150 * 200)mm 3.69 ea
 

Order Code Description Price GBP
TTAGS1       Small turret tags, sold in packs of 10 1.84     
DRILL210 HSS drill, High speed steel drill for pin insertion. 2.10mm diameter 1.02
MNTKT1 Mounting kit, 4 * (M4 *8)mm Nylon pillars + 4 Fixing screws 0.82
TCW18 18SWG single strand Tinned Copper Wire for Tag interconnections, 1.22mm Diameter. Sold in 4m Lengths 2.04
TCW20 20SWG single strand Tinned Copper Wire for Tag interconnections, 0.91mm Diameter. Sold in 4m Lengths 1.02
  DIY LAYOUT KITS  
XOVERD To design a board layout and drilling pattern detail. 8.17
XOVRBF To drill and insert small turret tags into Tufnol board, Price per insert 0.20
  Complete kit add (Design cost + Board size cost + cost of Tag insertion, i.e. number of holes req.) On Request

NOTE:-    In order to achieve the correct tag / hole spacing you are required to provide the following information:-
                  (1) Your crossover circuit.
                  (2) The component footprint, i.e. dimensions of your components.
                  No responsibility will be accepted for inept or incorrectly specified component dimensions.


Order Code Description Price GBP
  DRIVER WIRING  
CABL25RE RED:     2.5mm OFC copper cable, TPE insulation, Highly flexible.  (bass) 2.97/m
CABL25BK BLACK:  2.5mm OFC copper cable, TPE insulation, Highly flexible.  (bass) 2.97/m
CABL25GR GREEN:  2.5mm OFC copper cable, TPE insulation, Highly flexible.  (bass) 2.97/m
     
CABL10RE RED:     1.0mm OFC copper cable, TPE insulation, Highly flexible.  (treble) 1.82/m
CABL10BK BLACK:  1.0mm OFC copper cable, TPE insulation, Highly flexible.  (treble) 1.82/m
CABL10GR GREEN:  1.0mm OFC copper cable, TPE insulation, Highly flexible.  (treble) 1.82/m
     
CABLSL19B BLUE:    Silver Plated 19/0.15 PTFE Insulated 1.48/m

All Prices include VAT @ 17.5%.   See carriage charges for further information.

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