The C 414 EB is the second revision of the C 414 and introduced a 3-way high pass filter and the addition of a -20dB pad. First released in 1976, the first production used the highly regarded brass ring CK12 capsule, but ours and most of the EB's use a nylon ring capsule that AKG developed to simplify the production process. This capsule variation is used in all 414’s until the introduction of the TL model, which uses a modern re-creation of the CK12 capsule and transformerless output stage for a brighter sound.