INDUSTRY, CA. (12.10.2018) – For the Audio Fanatics that crave more Mid and High-end frequencies, Cadence gives you the CHD Series of Compression Drivers. If you are lacking in the mid to high end frequencies, then a horn/compression driver from Cadence can enhance your car audio system tremendously. Led by our “big boy” CHD420AL that features INDUSTRY, CA. (12.10.2018) – For the Audio Fanatics that crave more Mid and High-end frequencies, Cadence gives you the CHD Series of Compression Drivers. If you are lacking in the mid to high end frequencies, then a horn/compression driver from Cadence can enhance your car audio system tremendously. Led by our “big boy” CHD420AL that features