Black BK-T61 - Loudspeaker OSD Audio - Free user manual and instructions

Product Type	Passive Bookshelf Speaker
Speaker Configuration	2-way
Woofer Size	6.5 inches
Tweeter Size	1 inch silk dome
Impedance	8 ohms
Sensitivity	90 dB
Frequency Response	50 Hz - 20 kHz
Power Handling (RMS)	100 watts
Power Handling (Peak)	200 watts
Cabinet Material	MDF with vinyl finish
Grille	Detachable black cloth
Connector Type	5-way binding posts
Mounting Options	Bookshelf or wall mount via keyhole slot
Dimensions (H x W x D)	14 x 8.5 x 10 inches
Weight per Speaker	12 lbs
Recommended Amplifier Power	20 - 150 watts per channel
Warranty	5 years
Application	Home theater or stereo listening

Frequently Asked Questions - Black BK-T61 OSD Audio

How do I connect the Black BK-T61 speakers to my amplifier?

Use speaker wire with banana plugs or bare wire. Connect the positive terminal of the speaker to the positive terminal of the amplifier, and negative to negative.

What is the recommended placement for these bookshelf speakers?

Place them on a sturdy shelf or stand at ear level. Keep them at least 6 inches from walls to avoid bass boom.

Can I mount the Black BK-T61 on a wall?

Yes, they have a keyhole slot on the back for wall mounting. Use appropriate screws and anchors.

What amplifier power is suitable for these speakers?

An amplifier with 20 to 150 watts per channel is recommended. They handle 100 watts RMS.

How do I clean the speakers?

Use a soft, dry cloth. Avoid liquids and abrasive cleaners. Vacuum the grille gently if dusty.

Are the grilles removable?

Yes, the grilles are detachable for a more direct sound or cleaning.

What type of speaker wire gauge should I use?

For runs up to 50 ft, use 16-gauge wire; for longer runs, use 14-gauge or thicker.

Can I use these speakers for surround sound?

Yes, they work well as front, center, or surround speakers in a home theater system.

What is the impedance of the Black BK-T61?

The impedance is 8 ohms, compatible with most receivers and amplifiers.

Do the speakers come with a warranty?

Yes, OSD Audio offers a 5-year warranty against defects.

USER MANUAL Black BK-T61 OSD Audio

• Pencil - Wire Cutter - Safety Eye Wear
• Drill - Phillips Screwdriver - Gloves
• Tape Measure - Utility Knife - Sandpaper

18AWG minimum - for distances up to 10 ft

16AWG - from 10 to 50 ft

14AWG - from 50 to 100 ft

Considerations

• Where is the best place to install the speakers?
• Where do the speakers sound the best?

• Separate the speakers 6 - 10 feet apart.

• (For Ceiling LCR models only) Place speakers with the 15° angled woofer pointed towards the main listening area.

• If you intend to paint the grilles, do so before installation.

Placement

There are many options for proper speaker placement depending upon speaker type and application. It's important to carefully plan the placement of your speakers, as installation requires that you cut a hole in your wall or ceiling.

(See Diagram 1.) Typical speaker placement for a 5.1 and 7.1 speaker system.

Diagram 1

Installation:

Cut Out

NOTE: This is the most important part of the entire installation. If you are not certain whether any obstructions exist behind the desired mounting area, you should start by cutting a small hole in the center of your penciled mounting hole with a drywall saw.

Trace along the included template. Cut along the traced line using a drywall saw or rotary drill. Use a piece of sandpaper to sand down the cut out edge for a smoother contour. (See Diagram 2.)

Diagram 2

BLACK SERIES INSTALL GUIDE

SPECIFICATIONS

Mounting

Tighten the mounting brackets by simply turning the screws on the front of the speaker battle slowly clockwise. The quick-turn mounting system and frame will "sandwich" or clamp around the dry-wall to hold the speaker securely in place once fully tightened to the locked position.

(See Diagram 3.)

Connection

When connecting any speakers to the amplifier or receiver, always make sure the power is off. Locate the connection terms on the back of your receiver or amplifier. Always make sure to connect audio out from the back of your receiver or amplifier to the speakers. (See Diagram 4.)

NOTE: Not all Amplifier/Receivers can safely play more than one pair of speakers at once. Please refer to your owner's manual for impedance and wattage compatibility.

Adjustment

On select models ('Performance, Reference') of OSD Black Series, a front mounted 3-position ±3dB table contour switch can be used to tailor high frequencies according to speaker placement or the listeners preference. (See Diagram 5.)

* Excludes Shallow Mount Series

Pivoting Tweeter

Your Black series speaker comes from the factory with the tweeter centered in the neutral position. This will provide the smoothest response. However, select models come with a pivoting tweeter so you can focus the sound directly towards the listening area if needed. In order to do this, carefully press on the edge of the tweeter battle in the direction you wish to focus the sound. (See Diagram 6.)

CAUTION: When adjusting the pivoting tweeter be sure not to touch the dome as you may cause damage to the speaker.

graph TD
    A["Two-Part"] --> B["Left Cut"]
    A --> C["Right Cut"]
    B --> D["Left Operator"]
    C --> E["Right Operator"]
    D --> F["+"]
    E --> G["-"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#ccf,stroke:#333
    style D fill:#cfc,stroke:#333
    style E fill:#cfc,stroke:#333

Model Description Wooler Tweeter				Freq Response	Power Sensitivity Impedance Dimension Depth Cut Out
R51	Ceiling Sputter A3/2024	S 2.5" Pority W/ British Carried	S 7" Pority C/6 Box 2 Box	C 2 Box	T 5W	X 500	L 2 Box	X 2	X 61	X 7
R52	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box 2 Box	X 7 Box	X 8W	X 8W	L 2 Box	X 7	X 91	X 9
R53	Ceiling Sputter A3/2024	S 2" Pority W/ British Carried	S 7" Pority C/6 Box 2 Box	X 7 Box	X 10W	X 10W	L 2 Box	X 7	X 91	X 9
R61	Ceiling Sputter A3/2024	S 2" Pority W/ British Carried	S 7" Pority C/6 Box 2 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 9
R82	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box 2 Box	X 7 Box	X 10W	X 10W	L 2 Box	X 7	X 91	X 9
R53	Ceiling Sputter A3/2024	S 2" Pority W/ British Carried	S 7" Pority C/6 Box 2 Box	X 7 Box	X 10W	X 10W	L 2 Box	X 7	X 91	X 91
R62DT	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box 2 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 9
R82A	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box 2 Box	X 7 Box	X 10W	X 10W	L 2 Box	X 7	X 91	X 9
R83A	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box 2 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 9
R81	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box 2 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 9
R82	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 9
R83	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 10W	L 2 Box	X 7	X 91	X 9
R83DT	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 9
R82DT	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 9
R82A	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 9
R83A	Ceiling Sputter A3/2024	S 3" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 10W	L 2 Box	X 7	X 91	X 9
R62 SM	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Box	L 7" Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 9
R62 SM	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Box	L 7" Box	X 7 Box	X 10W	X 10W	L 2 Box	X 7	X 91	X 9
R62SS	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Box	L 7" Box	X 7 Box	X 10W	X 10W	L 2 Box	X 7	X 91	X 9
T52LCR	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Box	L 7" Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 91
T53LCR	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Box	L 7" Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 91
T61	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 91
T62	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 10W	L 2 Box	X 7	X 91	X 91
T63	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 91
T81	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 91
T82	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 600	L 2 Box	X 7	X 91	X 91
T83	Heating Sputter White Coat Diameter Bevel and Tangle	L 2" Pority W/ British Carried	S 7" Pority C/6 Box C/6 Box	X 7 Box	X 10W	X 10W	L 2 Box	X 7	X 91	X 91

NOTE: All specification and dimensions are subject to change without notice.

All Optimal Speaker Design speaker products have Limited Lifetime Warranty against defects in materials and workmanship. Proof of purchase must accompany all claims. During the warranty period Optimal Speaker Design will replace any defective part and correct any defect in workmanship without charge for either parts or labor Optimal Speaker Design may replace returned speakers with a product of equal value and performance. In such cases, some modification to the mounting may be necessary and are not Optimal Speaker Designs responsibility.

For this warranty to apply, the unit must be installed and used according to its written instructions. If necessary, repairs must be performed by Optimal Speaker Design. The unit must be returned to Optimal Speaker Design at the owner's expense and with prior written permission. Accidental damage and shipping damage are not considered defects, nor is damaged resulting from abuse or from servicing performed by an agency or person not specifically authorized in writing by Optimal Speaker Design

Optimal Speaker Design sells products only through authorized dealers and distributors to ensure that customers obtain proper support and service. Any Optimal Speaker Design product purchased from an unauthorized dealer or other source, including retailers, mail over dealers and on-line sellers will not be honored or serviced under existing Optimal Speaker Design warranty policy. Any sale of product by an unauthorized source or other manner not authorized by Optimal Speaker Design shall void the warranty on the applicable product.

Damage to or destruction of components due to application of excessive power voids the warranty on those parts. In these cases, repairs will be made on the basis of the retail value of the parts and labor. To return for repairs, you must email customer service at [e-mail] for a Returned Merchandise Authorization (RMA) number# then the unit must be shipped to Optimal Speaker Design at the owner's expense, along with a note explaining the nature of service required. Be sure to pack the speaker(s) in a corrugated container with at least 3 inches of resilient material to protect the unit from damage in transit.

This Warranty Does Not Cover: Damage caused by abuse, accident, misuse, negligence, or improper operation (installation) • Any products that have been altered or modified • Any product whose identifying number of decal, serial #, etc. has been altered, defaced or removed • Normal wear and maintenance.