1. Introdución
This instruction manual provides comprehensive guidance for the installation, operation, and maintenance of your HERTZ Mille Legend Series MLCX-2-TW3 2-Way Crossover Set. Please read this manual thoroughly before attempting any installation or operation to ensure proper functionality and to maximize the performance of your audio system. Retain this manual for future reference.
2. Produto rematadoview
The HERTZ MLCX-2-TW3 is a high-performance 2-way passive crossover designed for car audio systems. It facilitates the creation of a bi-amplified system, allowing separate amplification channels for the woofer and tweeter. This configuration enhances power delivery and optimizes the performance of the MLK 1650.3 Legend system components. The crossover features advanced controls for fine-tuning the frequency response to match various vehicle acoustics and speaker placements.

Figure 1: HERTZ MLCX-2-TW3 Crossover, top view con compoñentes internos.
3. Características clave
- bi-Amplification Capability: Allows connection of two separate amplifier channels to drive woofer and tweeter independently, enhancing system power and performance.
- Mid-Contour Control: A two-position selector for managing the woofer cut-off frequency, enabling fine-tuning of the system's frequency response.
- Hi-Contour Control: A two-position selector for managing the tweeter cut-off frequency, allowing adjustment to suit different car acoustics and speaker placements.
- Hi-Boost Control: Selectable switch to improve the linearity of tweeter emission above 10kHz, particularly useful when tweeters are not positioned on-axis with the listener.
- Compoñentes de alta calidade: Features bi-metallized 160V polyester film capacitors with ultra-low DF for sound transparency, air wound inductors with pure copper-wire for high saturation threshold and low losses, and high power rating wirewound resistors for stability.
- Construción robusta: Designed for durability and reliable performance in automotive environments.
4. Configuración e instalación
Proper installation is crucial for optimal performance. It is recommended that installation be performed by a qualified professional. Ensure the vehicle's battery is disconnected before beginning any wiring.
4.1 Conexións de cableado
The MLCX-2-TW3 crossover is designed to integrate into a bi-amplified system. This means separate amplifier channels will connect to the crossover for the woofer and tweeter sections.
- Ampentrada de lifier: Connect the dedicated amplifier channels for the woofer and tweeter to the respective input terminals on the crossover.
- Woofer Output: Connect the woofer speaker to the designated woofer output terminals.
- Saída de tweeter: Connect the tweeter speaker to the designated tweeter output terminals.
Asegúrate de que todas as conexións estean seguras e debidamente illadas para evitar curtocircuítos.

Figure 2: Crossover showing connection terminals.
4.2 Control Adjustments
The MLCX-2-TW3 features several controls to tailor the sound to your preference and vehicle's acoustics.
- Mid-Contour: This two-position selector adjusts the woofer's cut-off frequency. Experiment with both positions to find the setting that best integrates the woofer with the mid-range frequencies in your specific vehicle environment.
- Hi-Contour: Similar to Mid-Contour, this two-position selector adjusts the tweeter's cut-off frequency. Use this to fine-tune the high-frequency response, considering speaker placement and desired sound characteristics.
- Hi-Boost: Activate this switch if your tweeters are not directly aimed at the listening position (off-axis). It provides a boost above 10kHz to compensate for high-frequency roll-off, ensuring a more linear tweeter emission.
Adjust these controls incrementally and listen carefully to the changes in sound reproduction to achieve your preferred audio balance.

Figure 3: Crossover with visible adjustment switches.
5. Instrucións de funcionamento
Once installed and configured, the MLCX-2-TW3 operates passively, dividing the audio signal between the woofer and tweeter based on the selected crossover points. The primary operation involves setting the Mid-Contour, Hi-Contour, and Hi-Boost switches during the initial setup phase to achieve the desired sound profile. No further user interaction is typically required during normal operation.
- Ensure all audio components (head unit, amplifiers) are powered off before making any adjustments to the crossover switches.
- After making adjustments, power on your audio system and evaluate the sound. Repeat adjustments as necessary until optimal sound is achieved.
6. Mantemento
The HERTZ MLCX-2-TW3 crossover is designed for long-term, maintenance-free operation. No specific user maintenance is required beyond ensuring clean and secure connections.
- Keep the crossover free from dust and moisture.
- Comprobe periodicamente as conexións dos cables para comprobar se están ben apertadas e se presentan corrosión.
- Evite expoñer a unidade a temperaturas extremas ou á luz solar directa durante períodos prolongados.
7 Solución de problemas
If you experience issues with your MLCX-2-TW3 crossover, refer to the following common troubleshooting steps:
| Problema | Causa posible | Solución |
|---|---|---|
| No sound from woofer or tweeter | Loose or incorrect wiring connection. AmpO activador non está acendido ou está avariado. | Check all wiring connections to the crossover and speakers. Verify amplifier power and functionality. |
| Son distorsionado | Incorrect gain settings on amplifier. Damaged speaker. Crossover settings not optimal. | Axustar amplifier gain settings. Inspect speakers for damage. Re-evaluate Mid-Contour and Hi-Contour switch positions. |
| Imbalanced sound (e.g., too much treble) | Hi-Contour or Hi-Boost settings are too aggressive for the listening environment. | Adjust the Hi-Contour switch. If Hi-Boost is active, try deactivating it to see if the balance improves. |
If problems persist after attempting these solutions, contact HERTZ customer support or a qualified car audio technician.
8. Especificacións
| Especificación | Detalle |
|---|---|
| Modelo | MLCX-2-TW3 |
| Tipo de compoñentes | Crossover pasivo de 2 vías |
| Manexo de potencia (pico) | 300 W |
| Crossover de woofer | Lo-pass 6 dB/Oct. |
| Crossover de tweeters | Hi-pass 12 dB/Oct. |
| Frecuencia de corte | 2.5 kHz (Mid/Hi-Cont. = ON) |
| Axuste do nivel do tweeter | +2 / 0 / -2 dB |
| Dimensións (W x H x D) | 7.67 x 4.68 x 1.61 polgadas (195 x 119 x 41 mm) |
| Peso | 1.26 libras (0.57 kg) |
| UPC | 8018823113960 |
Nota: As especificacións están suxeitas a cambios sen previo aviso para mellorar o produto.

Figure 4: Product label with specifications and compliance information.
9. Garantía e soporte
9.1 Garantía limitada
This HERTZ product is covered by a limited warranty. Please refer to the warranty card included with your product or visit the official HERTZ websitio web para obter termos e condicións detallados relativos á cobertura da garantía, a duración e os procedementos de reclamación. Garda o comprobante de compra para a validación da garantía.
9.2 Información de cumprimento
Este artigo cumpre coa Norma Federal de Seguridade de Vehículos a Motor dos Estados Unidos 218 (FMVSS 218) (certificación DOT FMVSS n.º 218).
9.3 Atención ao cliente
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact HERTZ customer support through their official website or authorized service centers. Provide your product model number (MLCX-2-TW3) and proof of purchase when seeking support.





