Toa BA-235 Operating Instructions Manual
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Toa BA-235 Operating Instructions Manual

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POWER AMPLIFIERS

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2. SAFETY PRECAUTIONS ........................... 3
3. GENERAL DESCRIPTION ......................... 5
4. FEATURES ................................................. 5
Front ............................................................ 5
Rear ............................................................. 6
Connection ........................................... 7
6.2. Input Connections ................................ 7
6.3. Output Connections .............................. 8
CONNECTION ............................................ 8
Thank you for purchasing TOA's Power Amplifiers.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
MASTER
0
10
BASS
TREBLE
POWER AMPLIFIER BA-260
OPERATING INSTRUCTIONS
SIGNAL
PEAK
8. 2-CHANNEL BROADCAST ........................ 9
9. OPERATION ............................................... 9
ATTACHMENT ......................................... 10
12. VOLUME SETTING .................................. 11
13. VOLUME CONTROL COVER .................. 11
14. BLOCK DIAGRAM ................................... 11
15. DIMENSIONAL DIAGRAM ....................... 12
16. SPECIFICATIONS .................................... 12
Accessories ............................................... 12
Optional products ...................................... 12
BA-235
BA-260
POWER
ON
OFF

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Summary of Contents for Toa BA-235

  • Page 1: Table Of Contents

    Accessories ..........12 6.3. Output Connections ......8 Optional products ........12 7. REMOTE VOLUME CONTROL CONNECTION ..........8 Thank you for purchasing TOA's Power Amplifiers. Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.

  • Page 2: Important Safety Instructions

    1. IMPORTANT SAFETY INSTRUCTIONS • Read these instructions. • Keep these instructions. • Heed all warnings. • Follow all instructions. • Do not use this apparatus near water. • Clean only with dry cloth. • Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. •...

  • Page 3: Safety Precautions

    • Should the following irregularity be found during use, immediately switch off the power, disconnect the power supply plug from the AC outlet and contact your nearest TOA dealer. Make no further attempt to operate the unit in this condition as this may cause fire or electric shock.
  • Page 4 Indicates a potentially hazardous situation which, if mishandled, could CAUTION result in moderate or minor personal injury, and/or property damage. When Installing the Unit • Never plug in nor remove the power supply plug with wet hands, as doing so may cause electric shock. •...

  • Page 5: General Description

    3. GENERAL DESCRIPTION The BA-235 (35 W) and BA-260 (60 W) are Power Amplifiers for background music and general announcement. These units are suited for use in bars, retail stores, and banquet rooms. When used in conjunction with the optional mixer amplifier BG-220 (20 W) or BG-235 (35 W), 2-channel broadcast can be made.

  • Page 6: Rear

    [Rear] UNIT PUSH BREAKER RESET 3.15A SPEAKER OUT REMOTE BRIDGE OUT VOLUME 10kΩ LINE IN 4Ω 10Ω 83Ω INPUT LEVEL +4dB DO NOT USE THESE 4Ω , 25V AND 70V CLASS 2 WIRING TERMINALS AT THE SAME TIME. This figure represents the BA-260. 8.

  • Page 7: Connections

    6. CONNECTIONS 6.1. Removable Terminal Plug Connection Notes • Avoid soldering cable conductor, as contact resistance may increase when the cable is tightened and the solder is crushed, possibly resulting in an excessive rise in joint temperatures. • Use cables of AWG 12 – 24. [Cable end treatment] 2-core shielded cable Solid cable and stranded cable...

  • Page 8: Output Connections

    COM 4 Ω 25 V 70 V 25 V LINE 70 V LINE Total impedance Total impedance 18 Ω (BA-235) 140 Ω (BA-235) 10 Ω (BA-260) 83 Ω (BA-260) 4 – 16 Ω 25 V Line 70 V Line The terminals marked with the symbol are hazardous live.

  • Page 9: Channel Broadcast

    Sound source B Sound source C Sound source C LINE 3 MOH OUT MOH output assignment (BA-235 or BA-260) (ZONE 2) SPEAKER OUT LINE IN Sound source C 9. OPERATION After completing all connections, turn on the power switch, and check to confirm that the power indicator lights.

  • Page 10: Rack Mounting Bracket Attachment

    11. RACK MOUNTING BRACKET ATTACHMENT To mount the BA-235 (BA-260) in a standard 19" equipment rack, use the optional MB-25B-BK or MB-25B-J Rack Mounting Kit. Before attaching the rack mounting bracket, remove each 2 frontmost screws on both sides of the unit. These removed screws are not used for rack mounting.

  • Page 11: Volume Setting

    12. VOLUME SETTING Output levels are adjustable with the Master volume control. For music play or announcement, adjust the volume control so that the signal indicator lights intermittently. Note that the sound quality is downgraded when the peak indicator remains lit. 13.

  • Page 12: Dimensional Diagram

    Unit: mm (in) 265 (10.43) 249 (9.8) 210 (8.27) 6-M4 (1.57) 165 (6.5) 16. SPECIFICATIONS Model No. BA-235 BA-260 Power Source 120 V AC, 60 Hz Rated Output 35 W 60 W Power Consumption 90 W (rated output) 130 W (rated output)

This manual is also suitable for:

Ba-260

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