70V 3.5˝ 70 Volt Commercial Speakers with Swivel Mounting Brackets
Included
70 Volt Wiring
The are four taps at the rear of the speakers. The bottom terminal is the Common or negative input. The three top terminals allow for either 1.5 watts, 3 watts, or 6 watts for 70-volt input only. This range allows for full customization of the sound for the space in which the speakers are installed. In a restaurant, for example, you can tap your dining room, hallway, and bathroom speakers at 3 watts, then the speakers in the outside seating area can be set at 6 watts. Another feature of 70-volt speakers is that you can mix and match any type whether they are wall mounted speakers (such as these), in-ceiling speakers, subwoofers, etc. 70-volt speaker set-ups allow you to run very long lines of speaker wire without signal loss. Wire the specific (1.5w, 3w, or 6w) positive terminals of the speakers to the positive 70-volt terminal of the amplifier only. The Common (negative) terminal on the speaker simply get wired to the Common (negative) terminal of the amp. You do not have to worry about impedance, the power is constant. The total number of speakers multiplied by the tap value cannot exceed the output power (in watts) of your 70V amplifier. The example below shows 11 total speakers. Using the 6W taps, you will need an amplifier with at least 100 watts (11 x 6 = 66W). A good rule of thumb is to select an amplifier with 15 to 20% greater power; in this case, an amplifier that delivers about 120W.
Please Note: These speakers can only be connected to the 70-volt terminal of your amplifier.
Installation
Tools needed
- Phillips-head screwdriver
- Small flat-head screwdriver
- Drill
- Adjustable wrench
- Determine an area to install the mounting bracket. We recommend mounting it to a wood stud (A). If you must install it on drywall, use wall anchors (B). Be sure that you have chosen the appropriate type and that they are installed properly.
- Align the left side of the bracket with a stud (C). Place a mark at the top and bottom left side openings as well as the top right opening (D).
- Drill holes where you made your marks (E). Ensure they properly align with the bracket. If using anchors, ensure the holes are deep and wide enough to accommodate them (F).
- Use 3 of the included screws to secure the top left, bottom left, and top right corners of the bracket. If you are using anchors, ensure that you are using the proper screws for your anchor type.
Thread the lock nut onto the shaft with the nut’s round surface facing away from the ball (G). Tighten it all the way onto the threaded shaft as shown in the illustration above (H).
5a. If you are using the safety chain, slide the end with the largest opening onto the ball shaft.
5b. Thread the lock nut onto the shaft with the nut’s round surface facing away from the ball. Tighten it all the way onto the threaded shaft, but do not tighten it flush with the ball.
- Slide the ball shaft assembly through the back of the molded nut.
- Screw the ball shaft/molded nut assembly into the threaded insert a tthe back of the speaker until it is fully seated against the opening (I). Use a wrench to tighten the nut and ensure it is completely flush with the speaker housing (J).
- Use a small flat-head screwdriver to loosen the appropriate terminal screws (K). Strip a half inch of sheathing from the ends of the speaker wire. Insert them into the terminal openings (L). Be sure to observe proper polarity. Tighten the screws (M).
- Use both hands to hold the speaker and gently push the ball into the wall bracket. Check that the ball is properly seated.
- Hand tighten the molded nut (N). Orient the speaker in the desired direction. Insert the metal bar into one of the holes on the molded nut and tighten it to lock in the position (O). Do not overtighten.
Insert the last screw into the lower right hand hole and tighten it.
11a. Insert the last screw into the open end of the safety cable. With the safety chain attached, insert the screw into the lower right hand hole and tighten it.
After making final orientation adjustments to the speaker, use a Phillips head screw driver to tighten the screw on the side of the molded nut to ensure the bracket is fixed in the desired position. Do not overtighten.
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