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MIXER AMPLIFIER
A-3606D, A-3612D, A-3624D, A-3648D
About Firmware Upgrade
The latest firmware is available on the TOA DATA Library (https://www.toa-products.com/international/).
Perform a search for the product number "A-3606D, A-3612D, A-3624D, or A-3648D" and download
the latest firmware.
Thank you for purchasing TOA's Mixer amplifier.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
OPERATING INSTRUCTIONS
The figure represents the A-3648D.
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Table of Contents
Related Manuals for Toa A-3606D
Summary of Contents for Toa A-3606D
- Page 1 The figure represents the A-3648D. About Firmware Upgrade The latest firmware is available on the TOA DATA Library (https://www.toa-products.com/international/). Perform a search for the product number "A-3606D, A-3612D, A-3624D, or A-3648D" and download the latest firmware. Thank you for purchasing TOA’s Mixer amplifier.
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Page 2: Table Of Contents
TABLE OF CONTENTS 1. SAFETY PRECAUTIONS ................3 2. GENERAL DESCRIPTION ................5 3. FEATURES ......................5 4. HANDLING PRECAUTIONS ..............5 5. INSTALLATION PRECAUTIONS ............. 6 6. THE DUCKER FUNCTION AND THE PRIORITY BROADCAST FUNCTION ........6 7. NOMENCLATURE AND FUNCTIONS .......... -
Page 3: Safety Precautions
AC outlet and personal injury. contact your nearest TOA dealer. Make no further attempt to operate the unit in this condition as this When Installing the Unit may cause fire or electric shock. - Page 4 • Contact your TOA dealer as to the cleaning. If dust is • To avoid electric shocks, be sure to switch off the allowed to accumulate in the unit over a long period unit’s power when connecting speakers.
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Page 5: General Description
3. FEATURES • 4 kinds of power amplifier outputs: 60 W (A-3606D), 120 W (A-3612D), 240 W (A-3624D), and 480 W (A-3648D) • Lightweight owing to the built-in digital power amplifier unit • Emergency broadcast and priority broadcast activated by way of the control input (contact) •... -
Page 6: Installation Precautions
5. INSTALLATION PRECAUTIONS • The supplied power supply cord is designed for exclusive use with the unit. Never use it with other equipment. • Install the unit in a well-ventilated environment so that temperature inside the unit will not rise. •... -
Page 7: Nomenclature And Functions
7. NOMENCLATURE AND FUNCTIONS [Front] The figure represents the A-3648D. 1. Power switch 5. Zone selection buttons Press this switch to turn on the power. To turn off Select the broadcast zones. Pressing the Zone 1 the power, press this switch again. selection button causes the Zone 1 to be selected, outputting the signals from the zone 1 speaker Note... -
Page 8: Rear
Rotate the knob clockwise to boost the bass and ( See the separate setup manual, which can be counterclockwise to cut it. downloaded from the TOA DATA Library (https:// Setting the knob at the center makes the frequency www.toa-products.com/international/).) characteristic flat. - Page 9 18. AC inlet 25. Input setting switches (Inputs 3 and 4) Connect the supplied power cord to this Set whether or not to supply phantom power to receptacle. the microphones connected to Inputs 3 and 4 (26). WARNING Phantom power is a 24 V DC. Be sure to use the supplied power cord.
- Page 10 ON. However, the impedance will change when you turn the power ON again after turning the power OFF. In case of the A-3606D: 8 – 16 Ω 0 dB = 1 V...
- Page 11 3 8. Power amplifier input jack 41. Input terminals dedicated for BUS 2 (Inputs 5 and 6) 0 dB*, 600 Ω, unbalanced type, RCA pin jack Input the output of the signal processor or other –20 dB*, 10 kΩ, unbalanced type, RCA pin jack x 2 devices connected to the line output jack.
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Page 12: Connections
4 to16 Ω* 100 V line 100 V line 100 V line For the audio output at high impedance application setting, refer to "31. Speaker output terminal" on p. 10. * In case of the A-3606D: 8 – 16 Ω... -
Page 13: Input Terminal Connections And Settings
8.2. Input Terminal Connections and Settings 8.2.1. Connections Inputs 3 and 4 Removable terminal block Inputs 1 and 2 A-3606D/3612D/3624D/3648D Removable terminal block Inputs 5 and 6 Input 7 Removable terminal block RCA pin jack Inputs 5 and 6 RCA pin jack The terminal used for each of the Inputs 5 and 6 differs depending on the Input setting switch (Refer to the next page.). - Page 14 [Inputs 1 and 2] Set the sound source level to connect and whether or not to use the phantom power when the microphone input is selected. A-3606D/3612D/3624D/3648D Input sound source Switch position Input specification Line level LINE –20 dB*, 600 Ω...
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Page 15: Connecting To The Remote Master Volume Control Terminal
Never set the master volume control knob to the minimum position. If set to the minimum, no sound is output even if you maximize the volume level through this terminal. (Refer to "VOLUME ADJUSTMENT" on p. 20.) A-3606D/3612D/3624D/3648D Connectable volume controller: 10 kΩ B-taper potentiometer 8.4. Connecting to the Power Remote Control Output Terminal Use this terminal when remotely controlling other equipment. -
Page 16: Connecting To The Emergency Control Output Terminal
Use this terminal when remotely controlling other equipment. This terminal is activated while the emergency broadcast is in progress from this unit. For cable wiring to the removable terminal plug, refer to p. 18. A-3606D/3612D/3624D/3648D To other equipment's remote control input terminal Output specifications: Open collector output, withstand voltage: 30 V DC or less, current: 25 mA or less 8.6. -
Page 17: Connecting To The Control Input Terminal
8.7. Connecting to the Control Input Terminal Priority broadcast can be controlled by inputting the contact signal to these terminals. For the priority setting, refer to the separate setup manual, which can be downloaded from the TOA DATA Library (https://www.toa-products.com/international/). -
Page 18: Removable Terminal Plug Connection
8.9. Removable Terminal Plug Connection Step 1. Wiring the supplied removable terminal plug. [Recommended type of screwdriver ] 1-1. Loosen the terminal screws to insert the wire. 1-2. Tighten the terminal screws. Blade width* Ensure that the wire does not break free when pulled. -
Page 19: Settings
9. SETTINGS 9.1. Chime Tone Setting Set the chime tone to use with the DIP switches 1 and 2. A-3606D/3612D/3624D/3648D Chime tone to use Switch 1 Switch 2 Switch’s figures 4-note (Factory-preset) 1 2 3 4 5 6 2-note 1 2 3 4 5 6... -
Page 20: Volume Adjustment
Adjust the Software master volume control using the browser. For details, refer to the separate setup manual, which can be downloaded from the TOA DATA Library (https://www.toa-products.com/international/). Volume control knobs for each input remain effective. 12. SPEAKER ZONE SELECTION Pressing the unit’s front-mounted Zone 1 selection switch or inputting the control signal to the Zone 1 control... -
Page 21: Installing To An Equipment Rack
When installing the unit to an equipment rack, remove the four plastic feet screwed on the unit’s base as shown below. Plastic foot A-3606D/3612D/3624D/3648D When installing the unit to an equipment rack, use the optional MB-25B Rack mounting bracket. CAUTION Rack-mounting screws are not supplied with the optional MB-25B Rack mounting bracket. -
Page 22: Priority Broadcast Function
15. PRIORITY BROADCAST FUNCTION Perform the settings related to the priority broadcast using a web browser. For details, refer to the separate setup manual which can be downloaded from the TOA DATA Library (https://www.toa-products.com/international/). 15.1. Priority Broadcast Priority broadcast function refers to a function that mutes the designated audio signal by means of the control signal or audio signal as a trigger when it is input. - Page 23 You can edit the following items related to the priority broadcast on the browser for each trigger. Designated audio signals can be muted in the case of normal broadcast that is not activated by any trigger. For details, refer to the separate setup manual, which can be downloaded from the TOA DATA Library (https://www.toa-products.com/international/). Item...
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Page 24: Emergency Broadcast
15.3. Emergency Broadcast You can set the priority broadcast with the highest priority level to the emergency broadcast. When set to the Emergency broadcast, the broadcast is made at the maximum level regardless of the set values of the master volume, software master volume, and remote master volume*. Also, the chime is sounded at the maximum volume, and the characteristics of the EQ, tone control, and bass control are made flat. -
Page 25: Factory Default Settings
15.6. Factory Default Settings [Factory default setting list] Audio inputs Trigger Priority level Emergency Chime Status Control input 1 Valid Control input 2 – Valid High Control input 3 – Valid – Control input 4 Valid Audio detection – Invalid (Input 1) Audio detection –... -
Page 26: Setting Examples And Operation Images
15.7. Setting Examples and Operation Images 15.7.1. If the power is ON while being energized [Setting list] Audio inputs Trigger Priority level Emergency Chime Status Control input 2 Not set Valid Audio detection – Valid (Input 1) High Control input 1 –... - Page 27 15.7.2. If the power is OFF while being energized Even when the power is OFF while being energized, it is kept ON as long as the control input is closed. While the power is ON, the priority-assigned audio signals are output according to the priority levels. The power is not turned ON even if there is an audio detection input while the power is OFF.
- Page 28 Only in the following case, the power is ON in the period that only the audio detection input is present. When the control input and the audio detection input with higher priority overlap, the power remains ON until the audio detection input is terminated after all control inputs are opened. [Setting list] Audio inputs Trigger...
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Page 29: Settings On The Browser
For the details of the browser settings, refer to the separate setup manual, which can be downloaded from the TOA DATA Library (https://www.toa-products.com/international/). -
Page 30: Block Diagram
17. BLOCK DIAGRAM... -
Page 31: Specifications
18. SPECIFICATIONS A-3606D A-3612D A-3624D A-3648D Power Source 100 to 240 V AC, 50/60 Hz Rated Output 60 W 120 W 240 W 480 W Power/Current 96 W 171 W 314 W 601 W Consumption (rated output), (rated output), (rated output),... -
Page 32: Accessories
Volume control cover ..............4 • Optional products Rack mounting bracket : MB-25B Perforated panel: PF-013B Traceability Information for Europe Manufacturer: Authorized representative: TOA Corporation TOA Electronics Europe GmbH 7-2-1, Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo, Suederstrasse 282, 20537 Hamburg, Japan Germany URL: https://www.toa.jp/ 133-02-00574-00...
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