ALTO TX408 350W 8" Powered PA Speaker User Manual

1. Introduction

The ALTO TX408 is a compact yet powerful 8-inch powered PA speaker designed for a variety of audio applications, including on-stage monitoring for bands and DJs, use in home studios, gyms, or intimate music venues. It delivers clear, robust sound with a 350W bi-amplified power system, ensuring crisp audio detail even at high volumes.

This speaker features integrated Bluetooth connectivity for cable-free audio streaming and a 2-channel mixer for versatile input options. The TX408 also supports Bluetooth True Wireless Stereo (TWS) linking, allowing two units to operate as a stereo pair without additional cables.

Key Features:

• 350W Bi-Amplified Power: Delivers pristine and powerful sound for various environments.
• Bluetooth Connectivity: Seamless audio streaming from compatible devices.
• 2-Channel Mixer: Accommodates microphone, line-level, and Bluetooth inputs.
• True Wireless Stereo (TWS): Link two TX408 units for a stereo sound experience without cables.
• Contour EQ: Optimized sound profile for music playback applications.
• Rugged Construction: Full metal grille and sturdy enclosure for durability and portability.
• Integrated Pole Socket: Standard 36mm pole socket for flexible mounting options.

2. Important Safety Information

Please read these instructions carefully before operating the ALTO TX408 speaker. Keep this manual for future reference. Adhere to all warnings and follow all instructions to ensure safe operation and prevent damage to the unit or injury.

• Water and Moisture: Do not use this apparatus near water.
• Cleaning: Clean only with a dry cloth.
• Ventilation: Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
• Heat: Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
• Power Cord Protection: Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
• Attachments/Accessories: Only use attachments/accessories specified by the manufacturer.
• Mounting: Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
• Lightning: Unplug this apparatus during lightning storms or when unused for long periods of time.
• Servicing: Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
• Hearing Protection: Permanent hearing loss may occur from exposure to extremely high noise levels. Use ear protection when operating at high volumes.

3. What's in the Box

Ensure all items listed below are present in your package. If any items are missing or damaged, please contact your retailer or ALTO Professional directly.

• TX408 Series Speaker
• Power Cable (6 ft. / 183 cm)
• Quickstart Guide
• Safety & Warranty Manual

4. Setup

4.1 Placement

The TX408 speaker can be placed on a flat surface, used as a floor monitor, or mounted on a standard 36mm speaker pole. Ensure the speaker is placed on a stable surface or securely mounted to prevent accidental falls.

4.2 Power Connection

1. Ensure the TX408's power switch is in the OFF position.
2. Connect the included power cable to the power input on the rear panel of the speaker.
3. Plug the other end of the power cable into a grounded power outlet.

4.3 Audio Connections

The TX408 features a 2-channel mixer allowing for various audio input sources.

• Microphone/Line Input (CH1/CH2): Connect microphones or line-level devices (e.g., mixers, instruments) to the XLR/TRS combo inputs. Use the corresponding volume knob to adjust the input level.
• Mix Output: Use the XLR Mix Output to send the combined audio signal from CH1 and CH2 to another speaker or audio device.

5. Operation

5.1 Powering On/Off

1. Before powering on, ensure all volume knobs are set to their minimum position.
2. Flip the Power Switch on the rear panel to the ON position. The power LED will illuminate.
3. To power off, set the power switch to the OFF position.

5.2 Volume Control

Adjust the individual volume knobs for CH1 and CH2 to set the desired level for each input. The SIG/LIMIT LED will indicate signal presence (green) and clipping (red). Adjust the volume to avoid constant red illumination.

5.3 Bluetooth Pairing

1. Ensure your Bluetooth device is within range and has Bluetooth enabled.
2. Press the Bluetooth/TWS button on the TX408's rear panel. The Bluetooth LED will flash, indicating it is in pairing mode.
3. On your Bluetooth device, select 'ALTO TX408' from the list of available devices.
4. Once paired, the Bluetooth LED on the TX408 will glow solid blue.

5.4 Contour EQ

The Contour EQ switch provides a pre-set equalization curve designed to enhance music playback, offering a fuller sound. Engage this switch for applications where a boosted low-end and crisp high-end are desired.

6. Rear Panel Features

1. SIG/LIMIT LED: Illuminates green when a signal is present. Illuminates red when the signal is clipping; reduce the input level to prevent distortion.
2. Volume Knobs (CH1/CH2): Adjusts the input level for the respective channel.
3. Bluetooth/TWS Button: Press to enter Bluetooth pairing mode. Press and hold to initiate True Wireless Stereo (TWS) linking.
4. CH1/CH2 Inputs: XLR/TRS combo inputs for connecting microphones or line-level audio sources.
5. Mix Output: XLR output to send the mixed audio signal to another powered speaker or audio device.
6. Contour EQ Switch: Engages a pre-set EQ curve for enhanced music playback.
7. Ground Lift Switch: Helps eliminate hum or buzz caused by ground loops.
8. Power Switch: Turns the speaker on or off.
9. Power Input: Connect the included power cable here.

7. True Wireless Stereo (TWS) Linking

The TX408 supports TWS linking, allowing two TX408 speakers to connect wirelessly and function as a stereo pair. This feature requires two TX408 units.

1. Ensure both TX408 speakers are powered on and not currently paired with any Bluetooth device.
2. On one TX408 (this will be your primary speaker), press and hold the Bluetooth/TWS button for approximately 3 seconds until the Bluetooth LED starts flashing rapidly.
3. Repeat step 2 on the second TX408 (this will be your secondary speaker).
4. The speakers will automatically search for each other and link. Once linked, the Bluetooth LED on both speakers will glow solid blue. The primary speaker will play the left channel, and the secondary speaker will play the right channel.
5. Now, pair your Bluetooth audio source device to the primary TX408 speaker as described in Section 5.3.

To disconnect TWS, press the Bluetooth/TWS button on either speaker. Both speakers will revert to individual Bluetooth pairing mode.

8. Maintenance

Proper maintenance ensures the longevity and optimal performance of your ALTO TX408 speaker.

• Cleaning: Use a soft, dry cloth to clean the exterior of the speaker. Do not use solvents, abrasive cleaners, or any liquids that could seep into the internal components.
• Storage: When not in use for extended periods, store the speaker in a cool, dry place, away from direct sunlight and extreme temperatures.
• Ventilation: Ensure that the speaker's ventilation openings are clear and unobstructed during operation to prevent overheating.
• Cable Care: Regularly inspect power and audio cables for any signs of damage. Replace frayed or damaged cables immediately.

9. Troubleshooting

This section addresses common issues you might encounter with your TX408 speaker. If the problem persists after trying these solutions, please contact ALTO Professional support.

10. Technical Specifications

Below are the detailed technical specifications for the ALTO TX408 Powered PA Speaker.

11. Warranty and Support

11.1 Warranty Information

The ALTO TX408 speaker comes with a limited warranty. Please refer to the included Safety & Warranty Manual for detailed terms and conditions, including warranty duration and coverage.

11.2 Customer Support

For technical support, service, or warranty inquiries, please visit the official ALTO Professional website or contact their customer service department. Contact details can typically be found in the Safety & Warranty Manual or on the ALTO Professional website.

12. Product Videos

No official product videos from the seller are available for embedding in this manual.