WET-D4: How To Set Up, Wire & Install

Introduction

The Rockville WET D4 speakers are weather-resistant, commercial-grade 70V speakers designed for indoor and outdoor installations in restaurants, bars, offices, and other commercial spaces. These speakers provide flexible mounting options and multiple tap settings to integrate into any 70V or 8-ohm audio system.

This guide will cover:

• 70V system basics
• Mounting the speakers
• Wiring and connections
• Parallel wiring for multiple speakers
• Setting up with a 70V or 8-ohm amp

Step 1: Understanding 70V Systems

A 70V amplifier allows you to connect multiple speakers without overloading the amp. The key feature of a 70V system is that each speaker has a tap selector switch to adjust how much power it draws from the amplifier.

Example Setup:

• If your amplifier provides 100W, you can set each speaker to 5W and connect 20 speakers in parallel.
• If your amplifier provides 50W, you can connect 10 speakers at 5W each.

For a detailed explanation of 70V systems, check out Rockville’s "What is 70V" video.

Step 2: Unboxing and Components

Inside the box, you’ll find:

• 1 x WET D4 speaker
• 1 x Mounting bracket
• 1 x Bracket cap
• 1 x Back plate
• 8 x Long screws
• 2 x Short screws
• 4 x Anchors
• 2 x Banana plug adapters for speaker wire connections

The speakers come in black and white options, but setup is the same for both.

Step 3: Mounting the Speakers

The WET D4 includes a flexible mounting bracket with multiple holes to fit various mounting positions:

1. Corner mounting
2. Ceiling-wall placement
3. Standard vertical or horizontal mounting

For this guide, we'll mount the speaker horizontally.

Installation Steps:

1. Use the middle holes on the bracket to mark the mounting points on your wall.
2. Drill pilot holes for the screws.
   • If drilling into drywall without a stud, insert the included anchors.
3. Align the bracket with the holes and secure it to the wall using the included screws.
4. Feed the speaker wire through the small opening on the mounting bracket to hide cables for a clean look.

Step 4: Wiring the Speakers

You can connect your speakers using:

• Bare wire connections
• Banana plug adapters (included)

Connecting Bare Wire:

1. Run the speaker wire from your amp to the speaker.
2. Insert the positive (red) wire into the positive terminal.
3. Insert the negative (black) wire into the negative terminal.
4. Tighten the terminals to secure the connection.

Using Banana Plug Adapters:

1. Slightly unscrew the screws on the adapters.
2. Insert the positive (red) wire into the positive adapter.
3. Insert the negative (black) wire into the negative adapter.
4. Tighten the adapters.
5. Plug the adapters into the speaker terminals.

Step 5: Setting the Tap Selector Switch

The tap selector switch is used to set the wattage per speaker. It includes:

• 2.5W, 5W, 10W, 15W, 20W (for 70V amps)
• 8-ohm option (for standard receivers and amplifiers)

How to Adjust:

1. Remove the speaker grille using a butter knife or flathead screwdriver.
2. Turn the tap selector switch to the desired wattage.
3. Reattach the grille.

Example:

• 10 speakers on a 50W amp → Set each speaker to 5W.
• 5 speakers on a 50W amp → Set each speaker to 10W.

If using a standard amp, set the tap switch to 8Ω.

Step 6: Parallel Wiring for Multiple Speakers

Parallel wiring (daisy chaining) allows you to connect multiple WET D4 speakers to your 70V amp.

Wiring Multiple Speakers:

1. Start with the first speaker.
2. Connect one end of a speaker wire to the positive (+) and negative (-) terminals.
3. Take another speaker wire and connect it to the same terminals.
4. Run that wire to the next speaker’s positive (+) and negative (-) terminals.
5. Repeat this process for all speakers in the chain.
6. The final speaker connects to the amp.

Last speaker in the chain: Connect to the 70V amp’s Direct Output:

• Positive wire → 70V positive terminal on amp
• Negative wire → Common ground terminal on amp

Step 7: Connecting to a 70V or 8Ω Amplifier

For 70V Systems:

1. Connect the last speaker in the chain to the amp’s direct output or zone output.
2. Ensure all speakers are set to the correct wattage tap.
3. Turn on the amplifier and test the system.

For Standard 8Ω Amps:

1. Set each speaker to 8Ω on the tap selector switch.
2. Run speaker wires from the amp to each speaker in a parallel or series connection.
3. Turn on the amp and test the audio.

70V systems allow longer cable runs without sound degradation.

Conclusion

The Rockville WET D4 Dual 4” Indoor/Outdoor Commercial 70V Speakers provide versatile mounting options and flexible connectivity for commercial and home installations.

Key Takeaways:

Parallel wiring makes it easy to expand your setup.
The tap selector switch allows fine-tuning for multiple speakers.
Can be used with either 70V systems or standard 8-ohm receivers.