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TABLE OF CONTENTS
Appendices
T
ANNOY
T
: +44 (0) 1236 420199 F
ELEPHONE
TMA120
OPERATING INSTRUCTIONS
INTRODUCTION
pg. 2
The TMA120 commercial mixer/amplifier combines a versatile 6-
input mic/line mixer with 120 Watt amplification.
pg. 3
functions include mic/line/telephone inputs, selectable automatic
& manual channel muting, channel priority assignment, remote
pg. 5
level control, tone control, a built-in compressor, an internal
chime, phantom power, and extensive output patching.
pg. 6
amplifier includes an output transformer, and provides rated
power into direct or distributed speaker systems.
pg. 10
TMA120 features include:
pg. 10
•
integrated mixer, power amplifier, and output transformer
•
pg. 11
five electronically balanced microphone/line input channels
•
one transformer balanced microphone/line/tel input channel
pg. 12
•
rear panel trim control & pad switch on each input channel
•
+24 Volt phantom power selectable on each input channel
•
input isolation transformer option on mic/line input channels
•
automatic muting of selected channels (-10, -20, or -40dB)
•
automatic muting triggered by selected "priority" channels
•
manual muting of selected channels (-10, -20, or -40dB)
•
manual muting triggered from remote contact closures
•
remote control of master level via rear panel terminals
•
integral output compressor with rear panel threshold control
•
recessed treble & bass controls plus "loudness" & "low-cut"
•
two insert points for signal processing and remote control
•
two line-outs and one stack-in for system interconnections
•
120 Watts into direct or distributed systems
•
front panel indicators for power, fault, signal, and peak
•
internal 'pre-announcement' chime tone with level control
•
input/output connections provided on barrier strip terminals
•
integral security cover and removable rack-wing/handles
•
covered by two year warranty
•
L
, P
D
IMITED
ROFESSIONAL
IVISION
: +44 (0) 1236 428230 E-M
AX
A M
TGI
EMBER OF THE
PLC
marked, UL and C-UL (UL Canada) listed
, C
, ML5 4TF. S
OATBRIDGE
COTLAND
: prosales@tannoy.com
AIL
G
C
ROUP OF
OMPANIES
Mixing
The
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Summary of Contents for Tannoy TMA120
-
Page 1: Table Of Contents
TMA120 OPERATING INSTRUCTIONS TABLE OF CONTENTS INTRODUCTION Front Panel Features pg. 2 The TMA120 commercial mixer/amplifier combines a versatile 6- input mic/line mixer with 120 Watt amplification. Mixing Rear Panel Features pg. 3 functions include mic/line/telephone inputs, selectable automatic & manual channel muting, channel priority assignment, remote Modifications pg. -
Page 2: Front Panel Features
FRONT PANEL FEATURES Level (Channels 1~6): These controls adjust the Peak Indicator: This red LED flashes when signal amount of signal sent from the individual input levels at the amplifier output have reached channels to the mixer output. Optimum Level setting maximum. -
Page 3: Rear Panel Features
REAR PANEL FEATURES Power Entrance: This receptacle accepts a 3- Rec Out: This RCA phono jack provides an prong AC power cord. unbalanced line-level output from the mixer. WARNING: DO NOT REMOVE OR DEFEAT THE GROUND PRONG, AS THIS CONSTITUTES A Out is after Stacking In, but before Loudness, Tone, The removable lower portion of the SHOCK HAZARD. - Page 4 Remote Level: These two screw terminals (plus " ") Trim: This control adjusts the input gain of the ý provide remote volume control of the master level. channel, to compensate for various input signal An internal voltage controlled amplifier (VCA) allows levels.
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Page 5: Modifications
Security Cover: The TMA120 includes a removable front panel security cover. A hole in the security cover provides access only to the power switch. To remove the security cover: 1) Using a 3mm hex wrench, loosen the two captive security cover mounting screws. -
Page 6: Applications
Commercial / Industrial Paging System This application shows a TMA120 being used in a commercial/industrial paging system. Channel #1 is set for input from the telephone paging line, and is assigned both as a priority channel and manual muting of -20dB. - Page 7 Channel #6 is set for input from the tape deck (playback), which is also connected to Rec Out of the TMA120 (recording). If additional inputs are required, an auxiliary mixer (such as another TMA120) may be connected to the Stacking In terminals of the TMA120. The mixer amplifier is set for 'direct' (4Ω) output and is connected (in parallel) to the two 8Ω...
- Page 8 This application shows two TMA120s being used in a retail store paging system. Channel #1 of the store TMA120 is set for input from the telephone paging line. The telephone system also provides a paging contact closure which is wired to the Mute/Chime terminals. Channel #2 is set for input from the line-level digital message repeater, and is assigned both as a priority channel and manual muting of - 20dB.
- Page 9 TMA120s. Channel #1 of each TMA120 is set for input from line-level all-call paging, and is assigned as a priority channel. Channel #2 of each TMA120 is set for input from the respective floor paging microphone, and is assigned auto muting of -40dB.
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Page 10: Specifications
SPECIFICATIONS Output Power: 120 Watts Input Impedance / Sensitivity Power Bandwidth (THD < 0.4%): mic inputs 6kΩ / -77dBu (110µV) direct output 20Hz~20kHz line inputs 15kΩ / -37dBu (14mV) transformer output 50Hz~20kHz telephone inputs 600Ω/-60dBu (775µV) Frequency Response (+0/-1.5dB): amplifier input 10kΩ... -
Page 11: Warranty Statement
WARRANTY No maintenance of the TMA120 mixer amplifier is necessary. All Tannoy electronics are guaranteed for a period of two years from the date of manufacture, subject to the absence of, or evidence of, misuse, overload or accidental damage. For further information please contact your dealer, or the distributor in your country. The best way to do this is through the Tannoy website at www.tannoy.com...
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