Using an BOSS CE102 2 Channel Car Stereo Mini Amplifier, I pulled back to life my old school tweeter Philips AD0140 T4. The 5Amp BOSS mini amplifier is RCA fed from a JL Audio JD250/1 monoblock subwoofer amplifier that is connected to an Alpine iLX-507 receiver. I was hoping a tweeter stereo output but is not due the the Alpine sub woofer RCA output. Anyway, it adds crispy sharp trebles!