PK1-168 - Loudspeaker MB QUART - Free user manual and instructions
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| Product Type | 2-Way Component Speaker System |
| Brand | MB Quart |
| Model | PK1-168 |
| Woofer Size | 6.5 inches (165 mm) |
| Tweeter Size | 1 inch (25 mm) |
| Power Handling (RMS) | 50 Watts |
| Power Handling (Peak) | 150 Watts |
| Impedance | 4 Ohms |
| Sensitivity | 90 dB @ 1W/1m |
| Frequency Response | 40 Hz - 25 kHz |
| Crossover | Included, 12 dB/octave |
| Mounting Depth (Woofer) | 2.5 inches (64 mm) |
| Mounting Diameter (Woofer) | 5.5 inches (140 mm) |
| Weight (per Pair) | 3.3 lbs (1.5 kg) approx |
| Recommended Amplifier Power | 25 - 100 Watts RMS per channel |
| Woofer Cone Material | Polypropylene |
| Tweeter Dome Material | Silk |
| Enclosure Compatibility | Free air / infinite baffle compatible |
| Installation Accessories | Grilles, mounting hardware, and crossover included |
| Maintenance | Wipe with dry microfiber cloth |
| Safety | Ensure proper polarity and secure mounting |
| Spare Parts | Available from authorized MB Quart dealers |
| General Information | Designed for high-fidelity car audio reproduction |
Frequently Asked Questions - PK1-168 MB QUART
What is the recommended amplifier power for the MB Quart PK1-168?
The MB Quart PK1-168 is best paired with an amplifier delivering 25 to 100 Watts RMS per channel. This range ensures clean headroom without risking damage to the speakers.
Can these speakers be installed in a factory 6x8 location?
The PK1-168 is a 6.5-inch component system. It may fit in factory 6x8 openings with an adapter bracket, but the mounting depth of 64 mm must be verified for proper clearance.
How do I connect the crossover correctly?
Connect the amplifier output to the crossover's input, then connect the woofer to the low-pass terminal and the tweeter to the high-pass terminal. Always maintain correct polarity (+ to +, - to -) for optimal phase response.
What is the best way to break in these speakers?
Play a variety of music at moderate volume for the first 10-20 hours. This allows the polypropylene cone and silk dome tweeter to flex and reach their full compliance, improving bass extension and smoothness.
Can I use the PK1-168 without an external crossover?
No, the included crossover is essential to separate frequencies: the woofer should receive low frequencies and the tweeter high frequencies. Operating without it can damage the tweeter.
What type of tweeter is used and how does it sound?
The PK1-168 features a 1-inch silk dome tweeter. Silk domes are known for their smooth, natural highs and low distortion, making them ideal for extended listening sessions.
Are mounting brackets included?
Yes, the package includes grilles, mounting hardware, and flanges designed for standard 6.5-inch openings. For custom installations, additional brackets may be needed.
How should I clean and maintain these speakers?
To keep the speakers in top condition, gently wipe the grilles and cones with a dry microfiber cloth. Avoid using water or cleaning solvents, and keep the speakers away from excessive moisture.
What should I do if there is no sound from the tweeter?
First, check the crossover connections and ensure the tweeter wires are securely inserted. If everything looks correct, test the tweeter with a 1.5V battery to see if the dome moves or clicks. If not, the tweeter may be defective and should be replaced.
What is the impedance of the PK1-168 and can it be used with a 2-ohm stable amp?
The PK1-168 has a 4-ohm impedance. When two pairs are wired in parallel, the total load drops to 2 ohms, which is safe for 2-ohm stable amplifiers. Always check your amplifier's minimum rating.
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USER MANUAL PK1-168 MB QUART
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Product information
Brand : MB QUART
Model : PK1-168
Category : Loudspeaker