Speaker Measurement Interface
Don't be fooled by cheaper knock-offs. The WT2 is the only speaker measurement interface with a better than 1% accuracy for the price. Competing models errors tested at 66%.
The Tenma SMI is essential for deign, refurbishing or DIY speaker building. This compact interface is powered directly from the USB port of most PC’s, including laptops, and provide full T/S parameters of the connected speaker. Simply connect to an unmounted driver, and in a few minutes, this device will provide Fs, Cms, Qts, Vas, BL, Re, Le, Mms and CMS measurements, as well as an impedance curve and more. Measurements can be performed in most any shop or home, no special microphones or testing area is required.
Self powers from any USB port, including laptops
Single button Q and Fs testing
Single button Vas testing for Delta Mass, Delta Compliance and Sensitivity methods
Single button Vented Box analysis finds effective box size and tuning
T/S Parameters for mid ranges and tweeters
Measures Cms-vs-drive suspension non-linearity
Closed, Vented and Infinite Baffle box simulation
Measures and Simulates Rem/Xem non linear inductance, Qport, Qbox, Qleak and room boost effects
Adjustments for setting atmospheric conditions
Air wound inductor and Ellipse calculators
A real time continuous phase and impedance meter
True current source drive (not an approximation)
Continuously adjustable 1Hz ~ 20KHz line output
Measure resistors, inductors, capacitors, test leads, cables and more
Measures 1Hz ~ 20 kHz with 0.01 Ù and 0.1° phase accuracy
Interface dimensions: 2 1/2" (H) x 2 1/2" (W) x 1" (D)
Kit Includes
72" USB cable
30" test leads
Ver 2.01 software on CD
Detailed instructions on CD
Calibration resistor
Requires Win98se, WinMe, Win2K or WinXP and available USB port
