Polk Audio 90-RT 3-Way In-Ceiling Speaker User Manual

Table of Contents

1. Introduction
2. Package Contents
3. Installation
4. Painting the Grille
5. Troubleshooting Tips
6. Frequently Asked Questions

1. Introduction

Thank you for choosing the Polk Audio 90-RT 3-Way In-Ceiling Speaker. This high-quality speaker is designed to provide you with exceptional sound performance and a sleek, unobtrusive appearance. Please read this user manual carefully to ensure proper installation and use.

2. Package Contents

• Polk Audio 90-RT In-Ceiling Speaker
• Perfect Fit Template
• Paintable Wafer-Thin Sheer Grille
• User Manual

3. Installation

1. Choose the desired location for the speaker, ensuring that it is free from obstructions and has sufficient space for installation.
2. Use the Perfect Fit Template provided to trace the speaker cutout on the ceiling.
3. Carefully cut out the traced area using a drywall saw or a similar tool.
4. Feed the speaker wires through the cutout and connect them to the speaker terminals, ensuring proper polarity (red to positive, black to negative).
5. Insert the speaker into the cutout and secure it using the patented rotating cam system. Tighten the cams until the speaker is firmly in place and flush with the ceiling.
6. Attach the paintable wafer-thin sheer grille to the speaker by aligning it with the speaker and gently pressing it into place.

4. Painting the Grille

If desired, you can paint the wafer-thin sheer grille to match your home decor. Follow these steps to paint the grille:

1. Remove the grille from the speaker by gently pulling it off.
2. Use a non-metallic, non-abrasive brush to clean the grille surface.
3. Apply a thin coat of paint to the grille, ensuring that the paint does not clog the grille openings.
4. Allow the paint to dry completely before reattaching the grille to the speaker.

5. Troubleshooting Tips

• If there is no sound from the speaker, check the speaker wire connections and ensure they are securely connected with the correct polarity.
• If the sound quality is poor, try adjusting the balance and equalization settings on your audio source or receiver.
• If the speaker is vibrating or rattling, ensure that it is securely mounted and that the rotating cams are tightened properly.

6. Frequently Asked Questions

What is the recommended amplifier power for the 90-RT speaker?

The Polk Audio 90-RT speaker can handle up to 125 watts per channel. It is recommended to use an amplifier or receiver with a power output within this range for optimal performance.

Can I use the 90-RT speaker for both music and home theater applications?

Yes, the 90-RT speaker is designed for versatile use and can provide excellent sound quality for both music and home theater applications.

Do I need to purchase pre-construction brackets separately?

Pre-construction brackets are available separately and can be used to facilitate the installation process. However, they are not required for installation.

Can I install the 90-RT speaker in a wall instead of a ceiling?

Yes, the 90-RT speaker can be installed in a wall. Follow the same installation steps as for ceiling installation, ensuring that the speaker is securely mounted and flush with the wall surface.

Product FAQs:

Q: Do you have more than 1 available? I would like to buy 2 of these. Thanks.
A: Sorry, but we've only got one open box (customer return) unit and are no longer carrying Polk Audio.

Q: Best polk speaker for center in ceiling set up? I have a projector so this needs to be an in-ceiling install.
A: Our Polk Audio 90-RT in-ceiling speaker will make an excellent center channel speaker with its three-way design. Other models to consider are the 900-LS with its Ring radiator tweeter and the V80 with its swivel tweeter.

Q: Do these come with the white grills? What is the warranty and who is it through?
A: Yes, the Polk Audio 90-RT in-ceiling speaker comes with a white grill that can be painted to match your home decor. The factory warranty is as follows:
- 5-Year Limited Warranty on Home Audio Speakers
- 3-Year Limited Warranty on Powered Speakers and Powered Subwoofers
- 2-Year Limited Warranty on Outdoor Speakers
- 1-Year Limited Warranty on Electronics
- 1-Year Limited Warranty on Polk/MOMO and PA Series Mobile Amplifiers
- 1-Year Limited Warranty on all other Car Audio Speakers
The warranty is provided by Polk Audio and covers defects in materials and workmanship.

Q: Do these fit under 7 in floor joists? I am looking for something comparable to the 70RT which is too tall.
A: The Polk Audio 90-RT in-ceiling speaker protrudes only 0.3" from its surroundings, so it should fit under most floor joists. However, if the 70RT is too tall, the larger 90RT may also not fit.

Q: What is the frequency range?
A: The Polk Audio 90-RT in-ceiling speaker has a total frequency response of 30 Hz → 27,000 Hz.

Q: Do these speakers use banana plugs or do they have spring terminals?
A: The Polk Audio 90-RT in-ceiling speaker can be connected using either banana plugs or spring terminals.