Introduction

The Klipsch Bookshelf Speakers KD-400 are compact, active wireless speakers designed to deliver powerful sound in a sleek package. Featuring a 4-inch woofer and a 1-inch Dhorm tweeter, these speakers provide an impressive 48 watts of total power, ensuring dynamic audio reproduction with minimal distortion. With multiple connectivity options, including Bluetooth, RCA, and optical inputs, they are versatile for various audio sources. Priced at approximately $289.00, they offer an excellent solution for enhancing your home audio experience.

LOUD AND PROUD SINCE 1946

In 1946, Paul W. Klipsch revolutionized the audio industry by creating our proprietary horn technology and the acoustic principles that are the driving force behind our highly acclaimed signature sound.

Today, we remain true to PWK’s vision and pack the better part of a century’s worth of sweat and genius into every product we make. These speakers are the result of our obsession with that aural perfection. Experience the power, detail and emotion of Klipsch KD Series. We are the Keepers of the Sound.

INSPECTION

We want your new speaker system to look as good as it did leaving the factory! Please check promptly for any transit damage. Carefully unpack your new speaker system and verify the components against the packing list. In extreme circumstances, items may have become damaged in transit. If any damage is discovered, notify the delivery service and dealer where the system was purchased. Make a request for inspection, and follow their instructions for evaluation. Be sure to keep the product’s original shipping carton.

Detailed Specifications 

• Driver Size: 4.5 inches (woofer), 1 inch (tweeter)
• Frequency Response: 62 Hz - 20 kHz
• Sensitivity: 93 dB @ 2.83V / 1m
• Power Handling: 100W RMS / 400W Peak
• Crossover Frequency: 3 kHz
• Dimensions: 12.25" H x 7.25" W x 9.5" D
• Weight: 15 lbs (each)
• Color Options: Ebony, Walnut

ROOM PLACEMENT

Left and Right Front Speakers 
For optimum performance, Klipsch Group, Inc. (KGI) suggests placing your front left and right speakers 6 to 15 feet (1.8 to 4.6m) apart. They may also be toed-in slightly for better stereo imaging. The listening position should be about 1 to 1.5 times the distance separating the speakers. Refer to Figures 1 and 3 for connection and placement.
KD-52C Center Channel Speakers 
Center channel speakers are designed to place dialogue and primary sounds so that they appear to come from the video screen. The speakers should therefore be placed as close to the screen as possible, preferably directly on top of or below the screen. Refer to Figures 1, 2 and 3 for connection and placement.
Rear Surround Channel Speakers 
Klipsch surround speakers should be placed approximately 2 feet above the listening position. Typically this will be about 5-7 feet above the floor. The surrounds should be placed on the walls directly adjacent to the listening position. Another option would be on the wall behind the listening position. The final surround speaker placement depends on your room’s characteristics. They are designed to recreate the sense of space and ambience that many of today’s surround sound technologies provide. Refer to Figures 1, 3 and 4 for connection and placement. 

RECOMMENDED USE BY MODEL

Description

The Klipsch Bookshelf Speakers KD-400 are built with high-quality materials and attention to detail. The speakers feature a horn-loaded tweeter, which enhances sound clarity and reduces distortion. The woofer is crafted to produce robust bass while maintaining clear mid-range frequencies. The cabinets are made from durable wood and are available in two finishes: ebony and walnut. Each speaker weighs 15 pounds, indicating the use of substantial materials for sound integrity.

The design includes a rear-firing port that helps in achieving deeper bass notes without compromising on sound quality. The speakers also come with a removable grille, allowing users to customize the look according to their preference.

CONNECTION

Conventional Connection
Using 16-12 gauge speaker wire, connect the RED  “positive” (+) terminal of the LEFT speaker to the RED “positive” (+) terminal of your amplifier’s LEFT channel. Connect the BLACK “negative”  (–) terminal of the LEFT speaker to the BLACK “negative” (–) terminal of your amplifier’s LEFT channel. 

Repeat the above procedure for connecting all remaining speakers to the appropriate amplifier channels. Refer to Figure 3. Make sure that no bare wires from any of the connections touch any other terminals as this could cause a short and damage your equipment. Some Klipsch Front speakers come with dual binding posts that are connected by a metal strip. Do not remove this strip or your speakers will not function correctly. Keep this strip in place and connect your speaker wire to the top set of the binding posts. It is possible to “Bi-wire” a speaker that has two sets of binding posts. Please see your receiver’s manual for further instructions.

Amplifier Requirements
 Klipsch speakers are highly efficient and will operate easily on a wide variety of amplifiers. All Klipsch speakers are 8-ohm compatible and can be driven to very high levels with low distortion. Due to the high output levels Klipsch speakers are capable of reproducing, exercise caution with the volume control. Excessive volume over long periods can permanently damage your hearing. Overdriving your amplifier could also damage your speakers. Check with your dealer or amplifier manual to make sure your particular amplifier is best suited to your application. We want you to listen for a lifetime.

FIGURE 1
SPEAKER PLACEMENT IN LISTENING AREA

FIGURE 2
CENTER CHANNEL PLACEMENT

FIGURE 3
CONNECTING TO AV RECEIVER

FIGURE 4
CONNECTING TO AV RECEIVER

Setup Guide

To set up your Klipsch Bookshelf Speakers KD-400, follow these steps:

1. Unbox the speakers and remove any packaging materials.
2. Position the speakers on a flat surface, ideally on bookshelves or speaker stands.
3. Connect the speakers to your amplifier or receiver using speaker wire.
4. Adjust the placement for optimal sound quality; typically, they should be about ear level and angled inward.
5. Turn on your amplifier or receiver and adjust the volume to your liking.

CARE AND CLEANING

The only thing you should ever need to do to your speakers is dust them occasionally. Never apply any abrasive or solvent-based cleaner or any harsh detergent. You can clean the grilles with the brush attachment of a vacuum cleaner.

PRODUCT REGISTRATION

Register your product online at https://www.klipsch.com/register 

• Keep up-to-date on new products and promotions.
• Your personal information will never be resold.
• This registration information is not used for warranty purposes.

PLEASE RETAIN YOUR RECEIPT FOR WARRANTY CLAIMS.

Troubleshooting

If you encounter any issues with your Klipsch Bookshelf Speakers KD-400, here are some common problems and solutions:

• No Sound: Check if the speakers are properly connected to the amplifier or receiver. Ensure that there is no loose wiring.
• Adjust the speaker placement or check if the volume is set too high.

Pros & Cons

Pros

• Exceptional Sound Quality: Delivers clear highs and robust bass.
• Compact Design: Fits easily into any living space.
• Durable Construction: Made from high-quality materials.
• Easy Setup: Simple installation process.

Cons

• Only available in ebony and walnut finishes.

Customer Reviews

Customer reviews for the Klipsch Bookshelf Speakers KD-400 have been overwhelmingly positive. Many users praise the speakers for their clear and detailed sound, compact design, and ease of setup. However, some users have noted that the speakers can be sensitive to placement and may require adjustments to achieve optimal sound quality.

One common complaint is that the speakers may not produce as much bass as larger models, but this is expected given their size and design.