Williams Sound PPA 375 User Manual
Personal PA
™
FM Listening System
• Model PPA 375
Personal PA™FM Listening System
• Model PPA 375
©2008, Williams Sound Corp. CAT
100H 1
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
Description:
The PPA 375 features the T35 high performance transmitter: powerful microprocessor, sleek digital
display, easy-to-use menu controls. The T35 configures itself to the appropriate setting,
taking the guesswork out of complicated audio installation. Operating up to 1000 feet, the T35 is
ideal for auditoriums, theaters or other large venues where excellent coverage area is essential.
System includes four impact-resistant R35 single-channel receivers. The R35 receiver will operate up
to 100 hours for long-lasting performance!
Applications:
• Churches • Schools • Auditoriums • Conference Rooms • Theaters
Dimensions, Weight: 8.45" (21.5 cm) W x 8.18" (20.8 cm) D x 1.72" (4.4 cm) H, 3.1 lbs (1.4 kg)
Color: Black with white legends
Rack Mount: One EIA rack space high, 1/2 space wide
1–2 units can be mounted in a single rack space with optional RPK 005 (single) or RPK 006
(double) Rack Mount Kits
Power: Wall mount Class II transformer (TFP 016)
Input: 120 VAC, 60 Hz, 17 W
Output: 24 VAC, 500 mA with 3-pin Molex® plug
Approvals: UL, CSA listed
Temperature Range: Operating:0° C to 40° C (+32° F to +104° F)
Storage:-20° C to 70° C (-4° F to +158° F)
Operating Freqs: 72.1-75.9 MHz* , 10 wideband channels (selectable), 7 non-standard wideband channels (selec-
table) OR 72.025-75.975 MHz, 77 narrowband channels (selectable)
Frequency Accuracy: ±.005% stability, 0-50˚ C
Deviation: Wideband: ± 75 kHz maximum. Narrowband: ± 5 kHz maximum.
Pre-Emphasis: Wideband: 75 µsec. Narrowband: 300 µsec
RF Field Strength: Does not exceed 80 mV/m at 3 m
Nominal Range: Up to 1000 ft (304 m) Note: Maximum transmitter range is achieved using the ANT 005 coaxial
antenna
Audio Proc. Functions: Reduced or Normal Compressor Gain
Compression Slope Control
High Pass and Low Pass Filter Frequency control
Frequency Response: 22 – 16000 Hz, +1, -3 dB (adjustable)
Signal-to-Noise Ratio: 74 dB transmitted
PPA T35 Transmitter:
T35 Front Panel:
*DISCLAIMER: FCC RULES LIMIT USE OF THIS EQUIPMENT TO AUDITORY ASSISTANCE.
+9
Input
+6
Overload
+3
0
-3
-6
-9
On Air
Power
-12
-15
-18
+
Audio
Level
–
PPA T35
Digital Frequency Synthesized
^
-
^
Set
+
Volume
+
-
Phones
Source
Personal PA
™
FM Listening System
• Model PPA 375
Personal PA™FM Listening System
• Model PPA 375
©2008, Williams Sound Corp. CAT
100H 2
Audio Level Control: Push-button audio level controls, adjustable to 0 to -50 dB
Audio Level Indicators: 10 LED array that reads +9 to -18 at 3 dB intervals
Power On Indicator: Green LED indicates power on
Phones Output: Mono signal, 1/4" TRS stereo jack, 67 mW, maximum in 50 ohms (adjustable 0 to -40 dB)
Audio Input: Combination 3-pin XLR, 1/4" TRS jack
Line Output: RCA jack, -10 dBV (.32 VRMS) output, impedance 100 Ω
LCD Menu Controls: Applications Presets (Music, Voice, Hearing Assist)
(Push-Button Selection) Bandwidth, Frequency, Audio Input Source (Microphone, Line, Simplex), High Pass Filter, Low Pass
Filter, Compressor Slope, Compressor Gain, RF Output Power
Input Levels (Bal or Unbal): Nominal (1st Amber LED) Maximum (Input Overload LED) Absolute Maximum Ratings**
Microphone Simplex-Mic: -60dBV (1 mV RMS) -20 dBV (100 mV RMS) +20dBV (10.0 V RMS)
Line: -8dBV (400 mV RMS) +16 dBV (6.3 V RMS) +20 dB V (10.0 V RMS)
Simplex Mode: 12 volts simplex power (DIN 45596) on the 3-pin XLR connector
RF “Off” Timer: Turns off RF signal after 1 hour of no audio activity
Common Mode Rejection: > 57 dB @ 1 kHz, Mic or Line
Total Harmonic Distortion: < 0.25% @ -10 dB V audio line output, 1 kHz
Approvals: FCC, RoHS, WEEE
Warranty: 5 years, parts and labor*
**Note: Stresses above these ratings may cause permanent damage. Exposure for extended periods may degrade reliability.
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
T35 Rear Panel:
*90 days on accessories.
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