The T2T-S 1" tweeter kit is an alternative to the T1 with the major difference being an Aluminum Dome Neo-Tweeter for Fanatics who prefer this type of tonal quality. The included audiophile crossover utilizes 5% tolerance poly-capacitors and air-core inductors, and features a built-in protection and bypass resistor for 100% playtime. For optimum acoustics, three levels of attenuation are possible with an On/Off Axis setting to ensure optimum sound stage in any vehicle interior.