Using the 1/4" TRS INPUT 1s a “Thru” Connector Because the XLR connector and the 1/4" TRS
connector are in parallel, you can use the 1/4" TRS jack as a “Thru” connector to pass the input signal on to another amplifier’s input (see Figure below).
Note: If you use an unbalanced 1/4" TS cable to
FROM MIXING CONSOLE LEFT AND RIGHT MAIN OUT
INPUT 2 |
| INPUT | |
| CONNECTION | ||
OFF | ON |
| SUBSONIC |
|
|
| FILTER AT 30Hz |
LINE |
|
|
|
(BALANCED) |
|
|
|
INPUT 1 |
|
| AMP MODE |
|
| MONO | |
|
|
| STEREO |
CLIP LIMIT | BRIDGE | ||
| |||
OFF | ON |
|
|
LINE |
|
|
|
(BALANCED) |
|
|
|
AMP MODE SWITCH
STEREO
CAUTION
TO REDUCE THE RISK CHANNEL 2 | BRIDGED | CHANNEL 1 BREAKER |
OF FIRE OR ELECTRIC |
|
|
SHOCK, DO NOT |
|
|
EXPOSE THIS |
|
|
APPARATUS TO |
|
|
RAIN OR MOISTURE. |
|
|
SEE INSTRUCTIONS |
|
|
BEFORE USING. |
|
|
SPEAKER CONNECTION | ||
CHANNEL 2 | BRIDGED | CHANNEL 1 |
DESIGNED IN WOODINVILLE, WA, USA "TAPCO" IS A REGISTERED TRADEMARK OF LOUD TECHNOLOGIES INC.
WWW.TAPCOGEAR.COM
INPUT 2 |
| INPUT | |
| CONNECTION | ||
OFF | ON |
| SUBSONIC |
|
|
| FILTER AT 30Hz |
LINE |
|
|
|
(BALANCED) |
|
|
|
INPUT 1 |
|
| MONO |
CLIP LIMIT | BRIDGE | ||
| |||
OFF | ON |
|
|
LINE |
|
|
|
(BALANCED) |
|
|
|
AMP MODE SWITCH
STEREO
CAUTION
TO REDUCE THE RISK
OF FIRE OR ELECTRIC
SHOCK, DO NOT
EXPOSE THIS
APPARATUS TO
RAIN OR MOISTURE.
SEE INSTRUCTIONS
BEFORE USING.
CHANNEL 2 | BRIDGED | CHANNEL 1 |
DESIGNED IN WOODINVILLE, WA, USA "TAPCO" IS A REGISTERED TRADEMARK OF LOUD TECHNOLOGIES INC.
WWW.TAPCOGEAR.COM
Passive Speakers (Mackie C300s)
Usingthe1/4" TRSINPUT1sa“Thru”Connector
LOOK | In MONO and BRIDGE modes, | |
INPUT 1 and INPUT 2 are | ||
| ||
| connected together in parallel. | |
| This allows you to use INPUT 2 as a | |
CLOSER “Thru” connector to | ||
| input signal to another amplifier. | |
Output Wiring
Use heavy gauge, stranded wire for connecting speakers to the Speakon outputs jacks. As the distance between the amplifier and the speakers increases, the thickness of the wire should also increase. Speaker wire has resistance, and when electricity passes through a resistor, power is lost. The thicker the wire, the less resistance it offers, and the more power actually gets to the speaker.
The thickness of the wire is rated in gauges. Use the chart at the right to determine the correct gauge of wire to use according to the distance between the speakers and the amplifier, and the impedance of the load the amplifier is driving. This ensures that the power lost across the speaker wire is less than 0.5 dB.
|
| Passive Speakers (Mackie C300s) | |
|
|
|
|
| Load | Gauge of | |
Wire Length | Impedance | Wire |
|
Up to 25 ft. | 2Ω | 14 gauge | |
| 4Ω | 16 gauge | |
| 8Ω | 18 gauge |
|
Up to 40 ft. | 2Ω | 12 gauge | |
| 4Ω | 14 gauge | |
| 8Ω | 18 gauge |
|
Up to 60 ft. | 2Ω | 10 gauge | |
| 4Ω | 12 gauge | |
| 8Ω | 16 gauge |
|
Up to 100 ft. | 2Ω | 8 gauge | |
| 4Ω | 10 gauge | |
| 8Ω | 14 gauge |
|
Up to 150 ft. | 2Ω | 6 gauge | |
| 4Ω | 8 gauge | |
| 8Ω | 12 gauge |
|
Up to 250 ft. | 2Ω | 4 gauge | |
| 4Ω | 6 gauge | |
| 8Ω | 10 gauge | |
11