1. Introduction
The ALTO TS12S is a 2500W 12-inch powered subwoofer designed to extend the bass response of virtually any full-range speaker system. It provides a robust low-frequency range, enhancing the impact of live performances and audio playback. Engineered for durability and high-power performance, the TS12S features a premium internally braced composite cabinet and a 12-inch driver with a 3-inch voice coil transducer.
This subwoofer is portable and lightweight, equipped with built-in handles for easy transport and installation. It includes user-selectable DSP EQ tunings and phase alignment options to optimize its performance with various setups and environments. Connectivity is provided via (2) XLR+1/4-inch combo inputs and (2) XLR thru outputs for linking to other audio equipment, along with electronic clip, thermal, and transducer overdrive protection for reliable operation.
2. Features
The ALTO TS12S subwoofer incorporates several key features designed for optimal audio performance and ease of use:
- Superior Sound: Delivers 2500W of power with a 12-inch driver, 3-inch voice coil, and high-efficiency Class D amplifier for extended low-end frequencies.
- DSP EQ Modes: Features a Speaker Use Button with three selectable DSP EQ modes: EQ Off, Live, and DJ, allowing sound optimization for different applications.
- Phase Alignment Control: Offers 3 phase alignment options to compensate for low-frequency cancellation, ensuring seamless integration with full-range speakers.
- Simplified Setup: Portable and lightweight (57.1 lbs) PA cabinet with integrated handles and a 36mm pole socket for easy transport and installation.
- Versatile Connectivity: Equipped with (2) XLR+1/4-inch combo inputs and (2) XLR thru outputs for flexible linking and system integration.
- Durable Construction: Rugged, internally-braced front-ported MDF cabinet with a mark-resistant splatter-spray finish, built for the demands of live performance.
- Protection Circuitry: Includes electronic clip, thermal, and transducer overdrive protection for enhanced reliability and longevity.
3. Package Contents
Please ensure all items listed below are present in your package:
- ALTO TS12S Powered Subwoofer
- Power Cable
- Software Download Card (if applicable)
- User Guide (this document)
- Safety & Warranty Manual
4. Setup
4.1 Physical Placement
The TS12S is designed for floor standing placement. For optimal bass response, position the subwoofer on a stable, flat surface. Avoid placing it directly against walls or in corners, as this can lead to exaggerated or muddy bass. Experiment with placement to find the best sound for your environment.
The integrated 36mm pole socket on the top of the subwoofer allows for mounting a full-range PA speaker directly above it, creating a compact and powerful sound system. Ensure the pole and speaker are securely seated.
4.2 Connections
Refer to the rear panel diagram for connection points:
- Inputs (XLR+1/4-inch Combo): Connect your audio source (e.g., mixer, audio interface) to these inputs using standard XLR or 1/4-inch TRS cables. The TS12S has two inputs for stereo or dual mono signals.
- Thru Outputs (XLR): These outputs pass the full-range audio signal from the inputs to other speakers (e.g., full-range PA speakers). Use XLR cables to connect these outputs to the inputs of your main PA speakers.
- Power Input: Connect the included power cable to this input and then to a grounded electrical outlet.
5. Operating Instructions
5.1 Powering On/Off
After all connections are made, ensure the volume knob is set to its minimum position. Connect the power cable to a grounded AC outlet. Flip the power switch to the 'ON' position. To power off, reverse this process, turning the unit off before disconnecting power.
5.2 Volume Control
The 'VOLUME' knob on the rear panel controls the overall output level of the subwoofer. Start with the volume at a low setting and gradually increase it to achieve the desired bass level, ensuring it blends well with your full-range speakers.
5.3 DSP EQ Modes
The TS12S features a 'SPEAKER USE' button to select between three DSP EQ modes, optimizing the subwoofer's response for different applications:
- EQ Off: Provides a flat frequency response, suitable for custom tuning or when an external EQ is used.
- Live: Optimized for live music performances, offering a balanced and punchy bass response.
- DJ: Tailored for DJ applications, providing a more pronounced and impactful low-end for dance music.
5.4 Phase Alignment
The 'PHASE ALIGNMENT' switch allows you to adjust the phase of the subwoofer's output relative to your full-range speakers. This is crucial for preventing low-frequency cancellation and ensuring a cohesive sound. The available settings are 0, 90, 180, and 270 degrees. Experiment with these settings to find the one that provides the most impactful and clear bass in your listening environment.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your ALTO TS12S subwoofer.
- Cleaning: Use a soft, dry cloth to clean the exterior of the subwoofer. Avoid using abrasive cleaners, solvents, or any liquids that could seep into the enclosure and damage internal components.
- Storage: When not in use for extended periods, store the subwoofer in a dry, temperate environment, away from direct sunlight and extreme temperatures.
- Cable Inspection: Regularly inspect all audio and power cables for any signs of wear, cuts, or damage. Replace damaged cables immediately to prevent electrical hazards or signal loss.
- Ventilation: Ensure that the subwoofer's vents are not obstructed to allow for proper airflow and prevent overheating.
7. Troubleshooting
This section addresses common issues you might encounter with your TS12S subwoofer.
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output | No power; Incorrect connections; Volume too low; Input source issue | Check power cable and outlet; Verify all audio connections; Increase volume gradually; Ensure audio source is active and sending signal. |
| Distorted sound | Input level too high; Speaker placement issues; Damaged cable | Reduce input level from source or subwoofer volume; Adjust subwoofer placement; Replace faulty cables. |
| Lack of bass or weak bass | Incorrect phase alignment; DSP EQ mode not suitable; Subwoofer volume too low | Adjust 'PHASE ALIGNMENT' switch; Select appropriate 'SPEAKER USE' EQ mode (e.g., DJ); Increase subwoofer volume. |
| Overheating | Insufficient ventilation; Prolonged high-volume operation | Ensure clear space around vents; Reduce volume or allow unit to cool down. |
8. Specifications
Detailed technical specifications for the ALTO TS12S subwoofer:
| Specification | Detail |
|---|---|
| Model Name | TS12S |
| Speaker Type | Powered Subwoofer |
| Speaker Maximum Output Power | 2500 Watts |
| Woofer Diameter | 12 Inches |
| Audio Driver Type | Dynamic Driver |
| Frequency Response | 95 Hz (Low-pass filter adjustable via DSP) |
| Connectivity Technology | (2) XLR+1/4” (6.35 mm) inputs, (2) XLR thru outputs |
| Audio Output Mode | Mono |
| Special Feature | Class D Amplifier, DSP EQ Modes, Phase Alignment Control |
| Mounting Type | Floor Standing (with integrated 36mm pole socket) |
| Material | Metal, Plastic (MDF cabinet) |
| Color | Black |
| Product Dimensions (D x W x H) | 17.9" x 18.1" x 19.9" (45.5 cm x 46 cm x 50.5 cm) |
| Item Weight | 57.1 lbs (25.9 kg) |
| Power Source | Corded Electric |
| Manufacturer | inMusic Brands Inc. |
| UPC | 816311012102 |
9. Warranty Information
The ALTO TS12S subwoofer comes with a Limited Warranty. For detailed information regarding the terms, conditions, and duration of your warranty, please refer to the 'Safety & Warranty Manual' included in your product package. You may also visit the official ALTO Professional website for the most current warranty policy and registration information.
10. Support
For further assistance, technical support, or to download the latest software and documentation, please visit the official ALTO Professional website:
ALTO Professional Official Website
You can also find additional resources and contact customer service through the brand's store on Amazon:
