System Type, Filter Transfer Function | Alpine SPX-177A, SPX-137A

Crossover Network Settings

System Type 1

Filter Description:

In this setting, the woofer and tweeter are at approximately equal distance from the listener. Using the kick-panel for placement is only one of many locations available to mount both drivers together. What is important is that but by put- ting these two drivers in close proximity, it provides one of the better arrange- ments for optimum imaging. In this particular configuration, it is still possible to achieve the off-axis compensation and create phase linkage between drivers. From the graph below, the effect of the active jumper settings can be seen. Note the off-axis correction in the upper midrange of the woofer transfer function, as well as the tilting effect in the tweeter.

Filter Transfer Function

(SPX-177A)

(SPX-137A)

Note:

These simulations only illustrate the effect of each filter upon the input signal, and therefore do not represent the actual summed frequency response of the speaker system.

Configuration du filtre de voies

Type de système 1

Description du filtre :

Dans cette configuration, le woofer et le tweeter sont situés à distance approximativement égale de l'auditeur. Le panneau latéral est une des nombreuses possibilités d'emplacement des deux amplificateurs. L'important est de savoir que l'installation de ces deux amplificateurs à proximité l'un de l'autre est une des meilleures installations pour obtenir une imagerie optimale. Cette configuration particulière permet par ailleurs d'obtenir une compensation hors axe et de créer une liaison de phase entre les amplificateurs. Le graphe ci-dessous illustre l'effet des configurations de pontage actives. Veuillez remarquer l'effet de correction hors axe de la fonction de transfert du woofer dans le médium supérieur ainsi que l'effet de fléchissement dans le tweeter.

Fonction de transfert du filtre

(SPX-177A)

(SPX-137A)

Remarque :

Ces simulations n'illustrent que l'effet de chacun des filtres sur le signal d'entrée et ne représentent donc pas la réponse en fréquence accumulée réelle du système du haut- parleur.

SPX-177A, SPX-137A specifications

The Alpine SPX-137A and SPX-177A are premium car audio speakers designed to provide superior sound quality and performance for audiophiles and casual listeners alike. These models are part of Alpine's renowned speaker lineup, known for their exceptional engineering and innovative technologies that enhance the audio experience in vehicles.

The SPX-137A is a 3-way component speaker system that features a 6.5-inch midrange driver, a 1-inch silk dome tweeter, and a 3-inch super tweeter. This combination ensures a wide frequency response, delivering clear highs, rich mids, and deep lows. The system is capable of handling high power, making it suitable for use with aftermarket amplifiers, allowing users to enjoy distortion-free sound even at elevated volumes. The SPX-137A is designed with a dedicated crossover network that optimally distributes frequencies to each driver, ensuring that each component performs at its best.

On the other hand, the SPX-177A is a 6.5-inch coaxial speaker designed with a similar focus on high-quality audio performance. It features a 1-inch silk dome tweeter integrated with the midrange driver, which provides a compact solution for those looking to upgrade their factory speakers. This speaker is engineered to produce a balanced sound stage, offering clarity and detail across all genres of music.

Both models incorporate advanced materials in their construction. The woofer cones are made from lightweight yet rigid materials that enhance the overall sound quality by minimizing distortion. The tweeters utilize silk dome technology, which provides a smooth and natural sound reproduction, making them ideal for high-frequency audio reproduction.

One of the standout features of the Alpine SPX series speakers is their power handling capability. The SPX-137A has a peak power handling of up to 300 watts, while the SPX-177A can handle up to 220 watts peak. This high power handling allows these speakers to produce loud and clear sound without suffering from distortion, making them a great choice for those who enjoy their music at high volumes.

Additionally, both models feature a stylish design that complements modern vehicle interiors. They are built with durable materials to withstand the rigors of automotive use, ensuring longevity and reliability.

In summary, the Alpine SPX-137A and SPX-177A speakers stand out for their exceptional sound quality, advanced technologies, and robust construction. Ideal for anyone looking to enhance their in-car audio experience, these speakers deliver a remarkable combination of clarity, power, and durability. Whether you're an audiophile or simply seeking better sound in your vehicle, the SPX series offers a compelling solution.