Automotive / Car Audio
Owner's Manual for DS18 100CT500-8 10" Octagonal Midrange Loudspeaker
Get the most out of your DS18 100CT500-8 10" Octagonal Midrange Loudspeaker with this comprehensive owner's manual. Includes detailed technical specifications, Thiele & Small parameters, frequency response data, and mounting dimensions.
Table of contents
Important Information
The DS18 100CT500-8 is a 10-inch octagonal midrange loudspeaker designed for high-performance audio systems. To ensure optimal performance and prevent damage, it is critical to use a High Pass Crossover set to 80 Hz. The speaker is designed for an 8 Ohm load and handles 500 Watts RMS power.
Specifications
- Nominal Diameter: 10" / 254 mm
- Nominal Impedance: 8 OHMS
- RMS Power Handling: 500 Watts
- MAX Power Handling: 1000 Watts
- Sensitivity (1w/1m): 100 dB
- Frequency Response: 40Hz-8KHz
- Recommended Hi Pass Crossover: 80 Hz
- Voice Coil Diameter: 2.6" / 66 mm
- Magnet Material: Ferrite
Thiele & Small Parameters
- Vas (Equivalent Volume): 50.96 L / 1.8 ft3
- Xmax (Excursion): 8 mm
- Fs (Free Air Resonance): 90 Hz
- Qms (Mechanical Factor): 14.77
- Qes (Electrical Factor): 0.547
- Qts (Total Factor): 0.527
- Mms (Mechanical Mass): 10.24 g
- Cms (Mechanical Compliance): 0.297 mm/N
- Bl (BL Factor): 7.81
- Le (Voice Coil Inductance): 0.177 mH
- Sd (Cone Area): 349.67 cm²
- Re (DC Resistance): 5.68 OHMS
Measurements and Installation
When installing the loudspeaker, ensure the mounting surface can accommodate the following dimensions:
- Overall Diameter: 10.3" / 263 mm
- Front Mount Baffle Cutout: 9.1" / 233 mm
- Mounting Depth: 4.3" / 110 mm
- Overall Depth: 4.8" / 124 mm
- Motor Diameter: 6.6" / 168 mm
Frequency Response
The loudspeaker features a frequency response range of 40Hz to 8KHz. Users should refer to the SPL vs Freq graph provided in the manual to understand the output characteristics across the frequency spectrum.
Warranty and Safety
For warranty policy information, please visit the official website at DS18.com. Please note the warning regarding Cancer and Reproductive Harm; for more details, visit www.P65Warning.ca.gov.
Official resources from the manual
Manufacturer information
DS18
Practical help
Common problems
Speaker distortion or damage
Ensure the amplifier is set to an 80Hz High Pass Crossover to prevent low-frequency damage.
Impedance mismatch
The speaker is rated at 8 Ohms. Ensure your amplifier is stable at this impedance.
Before use
- Verify the mounting location can accommodate the 9.1" (233 mm) cutout diameter.
- Ensure the amplifier power output matches the 500W RMS rating.
- Confirm the amplifier has a High Pass Crossover filter available.
- Check that the mounting surface is sturdy enough for the speaker weight.
Specs in practice
- RMS Power Handling
- The continuous power the speaker can handle safely (500 Watts).
- Nominal Impedance
- The electrical resistance of the speaker (8 Ohms).
- Recommended Hi Pass Crossover
- The frequency below which the speaker should not play to avoid damage (80 Hz).
Images and diagrams
- The manual includes a diagram showing the overall diameter (10.3"), mounting depth (4.3"), and cutout diameter (9.1").
- The SPL vs Freq graph illustrates the frequency response curve from 20Hz to 20KHz.
Model compatibility
- Designed for use in systems requiring an 8 Ohm load.
- Requires a High Pass Crossover set to 80 Hz.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.