AVIXA CTS-D: PAG-NAG 2025/2026 Exam
Questions and Corresponding Answers
with Surety of 100% Pass Mark
PAG - 🧠 ANSWER ✔✔Potential Acoustic Gain
is the potential gain that can be delivered by the sound system without ringing and
before feedback occurs. It is based upon the number of open microphones, and the
distances between source(s) (like a presenter) and microphone(s), microphones to
loudspeakers, and listeners to loudspeakers.
NAG - 🧠 ANSWER ✔✔Needed Acoustic Gain
is to determine how much gain is needed to deliver the same level of sound to all
the listeners in the space
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Is the gain the sound system requires to achieve an equivalent acoustic level at the
farthest listener equal to what the nearest listener would hear without sound
reinforcement
EAD, Equivalent Acoustic Distance - 🧠 ANSWER ✔✔Is the farthest distance one
can go from the source without the need for sound amplification or reinforcement
to maintain good speech intelligibility. It is a design parameter dependent on the
level of the presenter and the noise level in the room
Excessive background noise level will cause this to decrease.
Rule of Thumb for EAD for Voice - 🧠 ANSWER ✔✔4 ft (1.2 meters) is often a
safe bet for voice. This assumes a 25 dB acoustic signal-to-noise ratio
Gain - 🧠 ANSWER ✔✔Refers to the electronic amplification of a signal.
NAG Formula - 🧠 ANSWER ✔✔20 log (D0 / EAD)
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions and Corresponding Answers
with Surety of 100% Pass Mark
PAG - 🧠 ANSWER ✔✔Potential Acoustic Gain
is the potential gain that can be delivered by the sound system without ringing and
before feedback occurs. It is based upon the number of open microphones, and the
distances between source(s) (like a presenter) and microphone(s), microphones to
loudspeakers, and listeners to loudspeakers.
NAG - 🧠 ANSWER ✔✔Needed Acoustic Gain
is to determine how much gain is needed to deliver the same level of sound to all
the listeners in the space
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, Is the gain the sound system requires to achieve an equivalent acoustic level at the
farthest listener equal to what the nearest listener would hear without sound
reinforcement
EAD, Equivalent Acoustic Distance - 🧠 ANSWER ✔✔Is the farthest distance one
can go from the source without the need for sound amplification or reinforcement
to maintain good speech intelligibility. It is a design parameter dependent on the
level of the presenter and the noise level in the room
Excessive background noise level will cause this to decrease.
Rule of Thumb for EAD for Voice - 🧠 ANSWER ✔✔4 ft (1.2 meters) is often a
safe bet for voice. This assumes a 25 dB acoustic signal-to-noise ratio
Gain - 🧠 ANSWER ✔✔Refers to the electronic amplification of a signal.
NAG Formula - 🧠 ANSWER ✔✔20 log (D0 / EAD)
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
