Architectural Acoustics Quadra 15P, User Manual, Page: 6 / 22

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((8 8)) M MIIC C IIN NP PU UT T
Female XLR input jack for using a microphone with the Quadra
®
15P system. This connector provides
+15V phantom power and gain suitable for most of today’s “hot” microphones. When using this
input with the regular inputs (5), the volume for the mic should be set first using the Volume (6)
control, and the level fed to the regular inputs should be set to the desired level using the source
level control (mixer).
((9 9)) C CO ON NT TO OU UR R S SW WIIT TC CH H
When this switch is in the ON position, the mid-range is reduced by approximately 4 dB.
((110 0)) LLO OO OP P--T TH HR RU U JJA AC CK KS S
Loop Out receives the signal after the balanced inputs and the Volume control, and sends it to
another Quadra 15P via its Loop In jack. These are unbalanced high-Z jacks, so do not run the cable
very far.
C CA AU UT TIIO ON NS S
This unit must be disconnected from the AC power source before any work is done on it. Refer all
servicing to qualified service personnel.
The heat sink on the back plate can become hot to the touch. Do not cover the heat sink or block
from ventilation.
Be sure to keep the microphone away from the front of the speaker after switching the mic input ON
and while setting the microphone level, or very loud feedback will occur! Damage to the system is
likely if this occurs.
DO NOT connect the inputs of the Quadra 15P to the output of a power amplifier. The inputs are
meant to be driven from a line-level strength signal.
DO NOT remove the protective metal grille.
DO NOT use the Input/Output jacks as mixers or run more than one signal source at a time into
them. The Input/Output jacks (5) are all hard-wired together to allow use of any of the connector
types as an input, and to allow a further send or “daisy-chaining” of the input signal to some other
audio device (such as another Quadra 15P). Attempting to run two different signals directly into the
Quadra 15P could damage the outputs of the source units. Use a mixer to combine two or more
signals into a single signal before sending to the Quadra 15P input.
W WA AR RN NIIN NG G:: The Quadra 15P is extremely efficient and powerful! This sound system can permanently
damage hearing! Use extreme care setting the overall maximum loudness!
The apparent sound level of the Quadra 15P can be deceiving due to its clear, clean sound output.
The lack of distortion or obvious distress can make the sound level seem much lower than it actually
is. This system is capable of SPLs in excess of 130 dB at 1 meter from the speaker!
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IIn ns sttrru uccttiio on ns s