The AKG B-330BT is a fully professional microphone whose frequency range, transient response and tonal flexibility are on a par with those of the very best studio dynamic microphones.
With its variable bass versus distance contour (marked emphasis or “proximity effect” when used close up; progressively diminishing bass response when used farther away) and smooth presence·rise contour (for added crispness and “punch”) plus nine different combinations of bass-rolloff/presence rise equalization, the D-330BT is the ultimate creative tool – one that offers its users unrivalled personal control over the tonal “shading” of voices or instruments to suit any situation.
The D-330BT preserves critical signal-to-noise ratios in all of its equalization modes. This is due to its specially designed filter networks, which maintain constant midband sensitivity and assure minimum midband impedance variations in all possible combinations of bass and presence settings. In addition, the D-330BT’s hypercardioid directional pattern is far more discriminating than that of a standard cardioid and is also unusually uniform with respect to frequency. These characteristics – extremely important in broadcasting and utterly indispensible for sound reinforcement – produce negligible coloration of desired sounds at the sides of the microphone while providing exceptional suppression of unwanted acoustic feedback and background noise towards the rear of the microphone.
A great vintage vocal microphone.