Advanced FEA Motor System

• Triple stacked 3/4" tall ferrite magnets and long T-yoke
• 215oz top grade magnet structure
• Large anti-flux modulation aluminum shorting ring to lower distortion
• Low carbon steel used for the gap plate and t-yoke
• Large pole vent for lower distortion and cooling capabilities.

The TC-3000 subwoofers are engineered for small sealed, ported, passive or horn loaded systems and designed for high power to ultra high power capabilities. We recommend an amplifier between 500 and 2000 watts RMS per driver.

There is no single perfect box. Much of what we offer is merely a general guideline to get you started. All of our system recommendations are geared for flat response but it is important to note that we do not show the recommended EQ necessarily for true in room liner frequency response. At a minimum, we strongly encourage the use of a high pass filter to prevent over excursion and potential mechanical damage to the driver in any given system design.

Directions
We specify six different system designs for each driver. Three of which give you linear output to around 25-20Hz which is ideal for home audio or large rooms, and the other three give you linear output to 35-30Hz which is ideal for car audio or small rooms. For each linear extension mode, there are three types of enclosures: Sealed, Ported and Passive. As a general rule of thumb, sealed systems can be the smallest design and have the smallest group delay, but are the least efficient and provide the least output. Ported systems are more efficient and provide more output around the system resonant frequency (Fb) but then roll off very steep after and require a larger box. Finally, passive systems have the efficiency characteristics of the ported systems, but use a mass loaded diaphragm rather than an air loaded mass as a Helmholtz resonator. The passive design also eliminates port resonance and turbulence issues associated with ported systems, but they also have the steepest roll off after Fb. There are many other differences and arguments among the system designs, but we leave that up to you do decide and debate. There is plenty of great information about system design on the net and of course, you can just ask in our forums and we’ll gladly assist you in your design. Remember, there is no single perfect box!

Key

More configurations may be available depending on the number of amplifiers and/or drivers. The impedance given is the DC resistance which is the measurable resistance of the circuit while the driver(s) are rest. The nominal impedance, or the load the amplifier will see while in operation, will be higher than the DCR by factor depending on the frequency. You can safely add 30% to the DRC for the estimated nominal impedance.