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d. Loosen and remove hex nuts from the main 
crossover board as shown. Remove RED and 
WHITE wires as indicated. 
 
e. Attach RED wire from crossover board to red 
woofer input binding post on input plate. 
 
f. Attach WHITE wire from crossover board to 
red midrange tweeter input binding post on input 
plate. 
 
g. Arrange all extra and unattached wires from 
the crossover board or input plate neatly so it 
will not rattle or cause any electrical shorts to 
input plate. 
 
h. Install input plates to speakers with Phillips 
head screws. 
 

 
3) Selecting a Location for Your DAX 

 
The DAX has a separate power supply that should be located away from the main unit and any other signal 
sources such as the preamp. Ideally, in order to minimize interconnect cable runs from your preamp to your 
amplifiers, the DAX should be located fairly close to your power amplifiers, but not right on top or next to 
them. However, the most obvious consideration in choosing a location is user accessibility. 
 
The DAX should be kept away from stray magnetic fields which can be caused by A.C. outlets, televisions, 
computers, and power supply transformers. 
 

4) Input/Output Connections 

 
The rear of the DAX is marked with left and right connections for both balanced and unbalanced 
(single-ended) input and outputs. Either the balanced, unbalanced(single-ended) or a combination of the two 
outputs may be used. 

 

 

1. Main signal link 
 
2. Output - Midrange/Tweeter 
 
3. Output - Woofer 
 
4. Power input connector 

 

 
Notice that the balanced inputs are female and the outputs male. The vast majority of manufacturers with 
balanced equipment use this convention. However, there does not seem to be any convention when it comes 
to the wiring of the 3-pin XLR connectors. We have chosen pin #1 to be common, pin #2 to be the negative 
signal, and pin #3 to be the positive signal. Reversing pin #2 and #3 is equivalent to an absolute phase 
inversion. 

Summary of Contents for DAX 3

Page 1: ...APOGEE ACOUSTICS INC DAX 3 Dedicated Active Crossover Owner s Manual...

Page 2: ...ing with single ended or fully balanced input output signal interconnects Input impedance adjustment controls fine tune the matching characteristics between DAX 3 and most available pre amplifiers Sel...

Page 3: ...the printed circuit board can be toggled to the left for Speaker A or to the right for Speaker B Refer to Table 1 for the Apogee speaker designation depending on the two speaker choices received NOTE...

Page 4: ...d to permit operation of the Apogee speakers with the DAX active crossover The wiring changes are simple and readily performed WARNING BEFORE MAKING ANY WIRING CHANGES DISCONNECT ALL POWER TO THE AUDI...

Page 5: ......

Page 6: ...URPLE WOOFER AMP MIDRANGE TWEETER AMP Binding Posts RED BLACK RED BLACK Standard Wiring L1 BLACK ORANGE 2 GREEN Passive X over Active Crossover BLUE WHITE ORANGE GREEN L5 GREY Woofer Wiring a Remove a...

Page 7: ...vas with serial numbers before 10360 resolder short ORANGE wire originating from MIDRANGE TWEETER RED AMPLIFIER BINDING POST from LUG 6 of the BUSSBAR to LUG 1 and 2 Refer to Diagram 2 f Finally cut t...

Page 8: ...lug or wire c Place the nameplates back in their original positions and secure with screws CALIPER SIGNATURE The Caliper Signature is not set up to be easily modified by the customer Therefore we reco...

Page 9: ...amplifiers but not right on top or next to them However the most obvious consideration in choosing a location is user accessibility The DAX should be kept away from stray magnetic fields which can be...

Page 10: ...R in the middle of the DAX back panel Before plugging the power cord into an A C outlet make sure the correct voltage setting is selected on the back of the power supply This is indicated on the botto...

Page 11: ...R on the far right edge of the front panel WOOFER attenuation knob two clicks to the left counterclockwise and then turn the right Fine Tuning knob one click to the left counterclockwise Note that th...

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