ALTO PROFESSIONAL TX415

1. GETTING STARTED

Package Contents:

• TX415 Loudspeaker
• Power Cable (6 ft.)
• Quickstart Guide
• Safety & Warranty Manual

For more information and resources, visit altoprofessional.com. You can also register your product and download the full user guide there.

2. SETUP

Important: Consult the full User Guide for complete installation instructions, additional safety guidelines, and more setup examples.

Connecting Devices:

Before powering on the TX415, connect input devices (microphone, guitar, etc.) to the CH1 Input. Make sure the CH1 Volume is set to zero.

Diagram description: An illustration shows a microphone connected to the CH1 Input, a Bluetooth device wirelessly connected to the TX415, and the TX415 connected to a power outlet and then to a loudspeaker. The CH1 Input is labeled with a microphone icon and the CH2/Bluetooth input is labeled with a Bluetooth icon. The rear panel of the TX415 is shown with various inputs and controls.

Return levels to zero before powering off TX415.

3. FEATURES

Diagram description: An illustration of the TX415 rear panel highlights various features with letters A through M. These include power input, fuse, power switch, cooling vent, SIG/LIMIT LED, CH1 Volume, Input Selector, CH1 Input, CH2/Bluetooth Volume, Bluetooth/TWS Link Button, Mix Out, Contour button, and Ground Switch.

A. AC Input:

Use the included power cable to connect this input to a power outlet. Make sure the Power Switch is set to off when connecting or disconnecting the cable.

B. Fuse:

If the unit's fuse is broken, lift this tab to replace the fuse. Replace it with a fuse with an appropriate rating (printed next to the unit's power cable input). Using a fuse with an incorrect rating can damage the unit and/or fuse.

C. Power Switch:

Use this switch to power the loudspeaker on or off. Make sure the Volume knobs are set to the minimum (counterclockwise) position before turning it on.

D. Cooling Vent:

Keep the area in front of this vent clear from obstructions.

E. SIG/LIMIT LED:

This LED illuminates green when an audio signal is received, and lights red when a high audio signal level activates the internal protection circuit. The protection circuit dynamically reduces the signal level to avoid audible distortion and to protect the woofer and high-frequency driver from over-excursion or mechanical damage. If this light is lit constantly, or the sound is distorted, reduce the signal level of your sound source, or lower the volume with the CH1/CH2 Volume knobs.

F. CH1 Volume:

Turn this knob to adjust the input gain of Channel 1.

G. Input Selector:

Set this switch to the Line position when using a line-level audio source connected to the CH1 Input. Set this switch to the Mic position when using a microphone connected to the CH1 Input.

H. CH1 Input:

Use a standard XLR or 1/4" (6.35 mm) TRS cable (not included) to connect your audio source to this input. Make sure to set the Input Selector switch to the correct position.

I. CH2/Bluetooth Volume:

Turn this knob to adjust the input gain of the connected Bluetooth device. Make sure your device volume is turned all the way up before adjusting this volume.

J. Bluetooth/TWS Link Button:

This button is used for pairing Bluetooth devices and wirelessly linking two speakers. See the next section for details.

K. Mix Out:

Use a standard XLR cable (not included) to connect this output to the input of another loudspeaker (i.e., another TX4 loudspeaker). This output sends the combined signal of CH1 and CH2.

L. Contour:

Engage (depress) this button to emphasize low and high frequencies by +3 dB. The LED will be lit when activated. Deactivate for a flatter response for live performance or for maximum output.

M. Ground Switch:

Engage (depress) this switch to reduce hum or noise.

4. PAIRING AND LINKING

Diagram description: An illustration shows the Bluetooth/TWS Link button with text indicating "Press to PAIR" and "Press and Hold to LINK".

To pair a Bluetooth device:

1. Make sure your device is powered on and within range (no more than 100 ft. [30.5 m]) of your speaker.
2. Press the Bluetooth/TWS Link button on TX415. It will enter pairing mode and the CH2 LED will flash green.
3. Navigate to your device's Bluetooth setup screen, and then find and select "TX415" from the list of devices. If your Bluetooth device prompts for a pairing code, enter 0000. If there is no connection after 90 seconds, the speaker will stop searching and reset to pairing mode.
4. When paired successfully, the CH2 LED will be solid green. Once you have previously connected a Bluetooth device, TX415 will reconnect to it automatically in pairing mode if it is within range and available for pairing.

To disconnect a paired device, return to your device's Bluetooth setup screen and select Disconnect.

To wirelessly link two TX4 TWS-compatible speakers for stereo Bluetooth playback:

1. Make sure both speakers are powered on and within range (75 ft. [23 m]) of one another, and that you have already paired your Bluetooth device to one speaker using the directions above.
2. Press and hold the Bluetooth/TWS Link button on one speaker until the CH2 LED starts to flash yellow, indicating it is in Stereo Link mode.
3. Repeat this on a second speaker, and the two will begin searching for a link. It may take up to 1 minute for the speakers to link.
4. Once a connection is made, both speakers' CH2 LEDs will be solid yellow. On the speaker that is connected to your Bluetooth device, the LED will turn green after 5 seconds. You can now stream Bluetooth audio wirelessly between the two speakers.

To unlink, double-press the Bluetooth/TWS Link button on either speaker.

Important Safety Instructions

Please read and keep these instructions. Heed all warnings and follow all instructions.

• General Safety: Always refer to important information printed on the bottom or rear of the product. Clean only with a dry cloth. Do not use this apparatus near water or in humid environments. Do not block any ventilation openings. Install according to the manufacturer's instructions. Do not install near heat sources. Do not place open flame sources on the apparatus.
• Power: Connect only to a power supply of the type described in these operating instructions or as marked on the apparatus. Protect the power cord from being walked on or pinched. Unplug during lightning storms or when unused for long periods.
• Accessories: Use only attachments/accessories specified by the manufacturer. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus.
• Voltage Selectors: Internal or external voltage selector switches, if any, should only be reset and re-equipped with a proper plug for alternative voltage by a qualified service technician. Do not attempt to alter this yourself.
• Battery Warning (if applicable): Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type. Batteries should not be exposed to excessive heat.
• Grounding: Do not defeat the safety purpose of the polarized or grounding-type plug. The apparatus must be connected to a mains socket outlet with a protective earthing connection.
• Class II Apparatus: This symbol indicates that the apparatus is a Class II or double insulated electrical appliance. It has been designed in such a way that it does not require a safety connection to electrical earth.
• ESD/EFT Warning: This product may contain a microcomputer for signal processing and control functions. In very rare situations, severe interference, noise from an external source, or static electricity may cause it to lock up. In the unlikely event that this occurs, turn the product off, wait at least five seconds, and then turn it back on.
• Proper Disposal: This marking indicates that this product should not be disposed of with other household wastes throughout the EU. To prevent possible harm to the environment or human health from uncontrolled waste disposal, recycle it responsibly to promote the sustainable reuse of material resources. For safe return of your used device, use return and collection systems or contact the retailer where the product was purchased.
• Button Cell Battery Warning (if applicable): This apparatus contains a button cell battery. Death or serious injury can occur if swallowed. A swallowed button cell can cause internal chemical burns in as little as 2 hours. Keep new and used batteries away from children. Seek immediate medical attention if a battery is suspected to have been swallowed or inserted into any part of the body.
• Battery Disposal (if applicable): Remove and dispose of used batteries immediately according to local regulations. Do not dispose of batteries with household waste or by incineration. Overheated batteries can rupture or explode. If you are unsure how to dispose of batteries, refer to local ordinances.
• Alkaline & Lithium Button Cell Batteries: Can be safely disposed of with regular household waste. They pose no health or environmental risk during normal use or disposal. Do not dispose of large quantities of alkaline & lithium button cells together.
• Lead-Acid Batteries: Dispose of lead-acid batteries by bringing them to an electronic waste center or recycling center, or dispose of them according to local regulations.

General Note on Conformity Declaration: We hereby declare that this device is in compliance with the essential requirements of the European Directive 2014/53/EU or 2014/30/EU. A full copy of the EU Declaration of Conformity is available upon request from inMusic GmbH, Hans-Günther-Sohl-Str. 4a, 47807 Krefeld, GERMANY, or at altoprofessional.com/safety.

Contact Information

World Headquarters: inMusic Brands, Inc., 200 Scenic View Drive, Cumberland, RI 02864, USA

U.K. Office: inMusic Europe Ltd, Abbey House 5F5, 282 Farnborough Road, Farnborough, GU14 7NA, UNITED KINGDOM

Germany Office: inMusic GmbH, Hans-Günther-Sohl-Str. 4a, 47807 Krefeld, GERMANY

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