Shure VP88 - Stereo Modes

Shure Incorporated
6/13
Output Mode
The lower control sets the VP88 to either MS Mode, or one of three Stereo modes. (L, M, or H).
Output Mode Selection Switch
Stereo Output Mode
In Stereo Mode, the VP88 uses its internal matrix to mix the Mid and Side signals and provide Left and Right stereo outputs.
The three settings (H, M, and L), determine the strength or width of the stereo effect, as described below. Nominal Left and
Right pickup patterns are shown in the following series.
The mono sum (Left + Right) in any Stereo position is always equal to the Mid signal, ensuring mono compatibility.
L (Low): Sidelevel6.0dBlowerthanMidlevel.Thestereoimagespreadofthestereoimagesissmall.Usethissettingfordis-
tantmiking,orinsituationswherethemicrophonedirectionalitycannotbewellcontrolled,suchashand-helduse.IntheLposi-
tion, the microphone also picks up the least amount of ambient sound from the side, and can be used to reduce high ambient
noise or reverberation. The L setting can be useful if the area being miked is already very wide. However, the degree of stereo
effect may be compromised in narrow performing areas.
M (Medium): Side level is 1.9 dB lower than Mid level. The increased side ambience pickup and stereo spread make the M
setting ideal for most applications.
H (High): Side level is1.6 dB higher than Mid level. The H position provides the most side ambience pickup and the greatest
amount of stereo spread. This setting is only appropriate if a high degree of ambience pickup is acceptable and the performing
area is not excessively wide.
MS Output Mode: InMSmode,theVP88’sinternalstereomatrixisbypassed.Thesignalfromthemidcartridgeissenttothe
redconnectorontheY-splittercable(M)andthesidecartridgeoutputissenttothegreenconnector(S).TheSideon-axissen-
sitivity(90°fromthefrontaxisofthemicrophone)is1.6dBhigherthantheon-axissensitivityoftheMidoutput.Thesensitivi-
ties of the Mid and Side outputs are equal at 45° off the front axis of the microphone. The polarity of the left lobe of the Side
output matches the polarity of the Mid output. The right lobe of the Side output is opposite polarity.
Low Stereo (L)