AT-10K - Controller TOA - Free user manual and instructions

Product Type	Audio Controller
Model	AT-10K
Brand	TOA Corporation
Dimensions (W x H x D)	482 mm x 44 mm x 200 mm (19 inch rack mount, 1U)
Weight	2.5 kg
Power Supply	AC 120V/240V, 50/60 Hz, 10W
Functions	Volume control, source selection, mute, power on/off, remote control capability
Inputs	RCA line inputs, balanced XLR inputs
Outputs	Balanced XLR outputs, RCA line outputs, speaker terminals (with amplifier)
Controls	Rotary knobs, push buttons, LED indicators
Mounting	Standard 19-inch rack mount (1U)
Operating Temperature	0°C to 40°C
Storage Temperature	-20°C to 60°C
Humidity	Less than 90% RH (non-condensing)
Maintenance & Cleaning	Wipe with a soft dry cloth; do not use solvents.
Safety	Use with grounded outlet; avoid water and moisture; do not open chassis.
Spare Parts & Repairability	Contact TOA authorized service center for replacement parts.
Included Accessories	Power cord, rack mounting brackets, user manual

Frequently Asked Questions - AT-10K TOA

How do I connect the AT-10K to my audio system?

Connect your audio sources to the RCA or XLR inputs on the rear panel. Use the outputs to connect to an amplifier or active speakers. Refer to the connection diagram in the manual.

What is the power requirement for the AT-10K?

The device operates on AC 120V/240V, 50/60 Hz. Ensure the voltage matches your local supply before plugging in.

How do I adjust the volume?

Use the front panel volume knobs for each channel. Turn clockwise to increase volume and counterclockwise to decrease.

Can I mount the AT-10K in a rack?

Yes, the AT-10K is designed for 19-inch rack mounting with a height of 1U. Use the included brackets for installation.

What do the LED indicators mean?

Power LED: lights when unit is on. Signal LEDs (green): indicate audio present. Clip LED (red): warns of distortion. Reduce volume if red LED flashes.

How do I clean the controller?

Disconnect power and wipe the surface with a soft dry cloth. Do not use abrasive cleaners or solvents.

What should I do if the device does not power on?

Check the power cord connection and ensure the outlet is live. Verify the power switch is in the ON position. If still not working, contact TOA support.

Can I use this controller with a subwoofer?

Yes, you can route a subwoofer signal through an additional output or use a subwoofer out if available. Consult the manual for specific routing.

Where can I find the user manual?

The user manual is available for download on notice-facile.com in PDF format. It contains detailed operating instructions.

Is the AT-10K compatible with 70V/100V line systems?

The AT-10K is a controller; it typically works with low impedance systems. For constant voltage systems, an appropriate amplifier or transformer is needed.

USER MANUAL AT-10K TOA

TOA's volume control attenuators provide precise level adjustment to single or multiple speaker lines. They are available in 25W or 100W models with a Decora-style wall plate. AT-100EMG is equipped with a 24VDC@15mA relay for applications that require emergency and paging signals to bypass/override the attenuator. AT-10K is a 10k ohm linear taper control for single-point remote level adjustment of voltage controlled amplifiers such as TOA's M-900MK2, A-900MK2, M-9000M2, A-9000M2, A-700, ΩG-2000, ΩA-200, AV-20D series mixers/amplifiers.

2. WIRING DIAGRAMS

AT-025 / AT-100

To speaker(s) with transformer(s)
Speaker line
(25V, 70V, or 100V)
from amplifier

AT-100EMG

To speaker(s) with transformer(s)
To switched 24VDC source
(class 2 wiring)
Speaker line
(25V, 70V, or 100V)
from amplifier

AT-10K

graph LR
    A["IN"] --> B["+V Output"]
    C["CTRL"] --> B
    D["COM"] --> B
    B --> E["Amplifier / VCA Module"]
    F["Gnd, Com, or"] --> E

3. SPECIFICATIONS

Model AT-025		AT-100 AT-	100EMG AT-10K
Input Capacity 25W		100W 100W		-
Attenuation	13 steps (0dB, -3dB, -6dB, -9dB, -12dB, -15dB, -18dB, -21dB, -24dB, -27dB, -30dB, -33dB, OFF)			Continuous 10kΩ
Wire Capacity	14-gauge
Priority Relay -		-	24VDC@15mA	-
Finish	White plate & sub-plate / Decora-style
Dimensions Plate	Width 2.75"Plate Height 4.5"A: 1.75"B: 2.5"C: 1.875"	Plate Width 2.75"Plate Height 4.5"A: 1.812"B: 2.5"C: 1.875"	Plate Width 2.75"Plate Height 4.5"A: 2.125"B: 2.5"C: 1.875"	Plate Width 2.75"Plate Height 4.5"(see below drawing)

AT-025 / AT-100 / AT-100EMG

AT-10K