Flash version of all three calculators (Bandpass, Sealed and Vented)

Bandpass Designer Software calculates 4th order bandpass theoretical enclosures and boxes.

The following Theile Small speaker parameters are required for input. These values should be included with your speaker manual or can be found on the manufacturer's web site.

- Qts: Total Q of the speaker
- Qes: Speaker electrical Q
- Fs: Free air resonance of speaker in Hz
- Vas: Volume of air equal to the speakers spring characteristics in liters
- Pmax: Maximum power of the driver in watts
- Diameter: The diameter of the driver in cm
- Xmax: The amount of cone movement in one direction in mm
- Dp: Diameter of the port(s) in cm
- # Ports: Number of ports

The following speaker parameters are user defined inputs. These values should be chosen by user preference.

S = 0.6 - Slightly degraded response slight ripple

S = 0.7 - Best transient response no ripple

- Gain: dB increase of the system
- S: Ripple

S = 0.6 - Slightly degraded response slight ripple

S = 0.7 - Best transient response no ripple

Notes:

- MAKE SURE THE UNITS MATCH (e.g. Vas is in liters not cubic feet).
- Pmax, Diameter, and Xmax are not required for box calculation. They are used to determine the power response curve. Vf, Vr, Fl, Fh, Fb, and Lp will still be valid for Qts, Qes, Vas, Dp and number of Ports.
- Ported designs require tuning. Bandpass Designer should give a good approximation of box parameters for most applications.
- Use the largest diameter port as the design allows. Drivers greater than 10" in diameter can produce port noise due to the air movement.

The following speaker box and enclosure parameters are calculated:

- Vf: Internal volume of front chamber (port goes into this chamber) in liters.
- Vr: Internal volume of rear chamber (sealed) in liters.
- Fb: Box resonance in Hz
- Fl: -3 dB frequency for the low end roll off
- Fh: -3 dB frequency for the high end roll off
- Lp: Length of port(s) in cm

Notes:

- Fl is an important parameter. The lower the Fl the deeper the bass. A Fl below 50 Hz should be suitable.
- Vb is the volume of the box. Generally, the lower the bass the bigger the box.
- For Box Calculator instructions go here.

Infant Growth Charts - Baby PercentilesPercent Off - Sale Discount CalculatorMortgage Calculator - Extra PaymentsSalary Hourly Pay Converter - JobsPaycheck Calculator - Overtime RatePay Raise Increase CalculatorStock Options CalculatorTemperature ConverterEngine Motor Horsepower CalculatorDog Age CalculatorSubwoofer Box CalculatorLinear Interpolation CalculatorPump Calculator - Water HydraulicsProjectile Motion CalculatorPresent Worth Calculator - FinanceDensity CalculatorTriangle CalculatorConstant Acceleration Motion PhysicsIdeal Gas Law CalculatorInterest Equations CalculatorTire Size Comparison CalculatorEarned Value Project ManagementCircle Equations CalculatorKinetic Energy Equations CalculatorMortgage Loan Calculator - FinanceStatistics Equations Formulas

Home: PopularIndex 1Index 2Index 3Index 4Infant ChartMath GeometryPhysics ForceFluid MechanicsFinanceLoan CalculatorNursing Math

Web Apps, Rich Internet Application, Technical Tools, Specifications, How to Guides, Training, Applications, Examples, Tutorials, Reviews, Answers, Test Review Resources, Analysis, Homework Solutions, Help, Data and Information for Engineers, Technicians, Teachers, Tutors, Researchers, K-12 Education, College and High School Students, Science Fair Projects and Scientists

By Jimmy Raymond

Contact: aj@ajdesigner.com

Privacy Policy, Disclaimer and Terms

Copyright 2002-2015