K3031

Introducing the Isophon K3031 P30/37/10 woofer mid/horn crossover, a high-performance component designed to deliver exceptional sound quality in your audio system. This crossover network is engineered to seamlessly blend the output of your woofer and mid/horn drivers, ensuring a balanced and harmonious sound.

The K3031 crossover is versatile and can be used with 300-watt, 37-volt, or 10-ohm woofer and mid/horn drivers. It employs a 2-way passive design, featuring a first-order high-pass filter for the mid/horn drivers and a second-order low-pass filter for the woofer. This design provides a smooth and natural frequency response for both drivers, ensuring an accurate reproduction of sound.

The Isophon K3031 is constructed using only the finest components, including high-quality capacitors and inductors. These components are carefully selected for their sonic purity and ability to handle high power levels. The crossover is also built with a robust and durable design, featuring gold-plated binding posts for secure and reliable connections.

The woofer and mid/horn outputs are isolated from each other using high-quality air-cored inductors, ensuring that each driver receives a clean and undistorted signal. This results in improved clarity and detail in the sound, making it ideal for use in high-fidelity audio systems, home theaters, and professional sound reinforcement applications.

The K3031 crossover is also designed for easy installation, with clear and concise labeling on the components and binding posts. It can be mounted using the included hardware, making it a great solution for DIY audio enthusiasts and professionals alike.

Overall, the Isophon K3031 P30/37/10 woofer mid/horn crossover is a high-performance and versatile component that delivers exceptional sound quality and reliability. Its robust construction, high-quality components, and easy installation make it an excellent choice for any audio project where precise and accurate sound reproduction is a priority.

The Isophon K3031 P30/37/10 woofer, DHB 6/2-10 mid/horn crossover is a high-end audio component designed for use in professional audio applications. Here are some potential pros and cons of considering this crossover in your system:

1. High-quality components: The Isophon K3031 P30/37/10 crossover uses high-quality components that are designed to provide accurate and transparent sound reproduction.

2. Adjustable settings: The crossover offers adjustable settings that allow you to fine-tune the frequency response of your speakers to suit your specific application and preferences.

3. Versatile application: This crossover can be used with a wide range of speakers and driver types, making it a versatile choice for professional audio applications.

4. Durable construction: The crossover is built with a rugged and durable construction that can withstand the rigors of professional use.

5. Precise crossover design: The crossover is designed to provide precise frequency response and minimal phase distortion, which is essential for high-quality sound reproduction.

1. Expensive: The Isophon K3031 P30/37/10 crossover is a high-end component that comes with a premium price tag.

2. Complex setup: The crossover offers a number of adjustable settings, which can make the setup process more complex than some other options.

3. Limited input options: The crossover offers a limited number of input options, which may not be suitable for all professional audio applications.

4. May require external power supply: Depending on your specific application, you may need to purchase an external power supply for the crossover, which can add to the overall cost.

The Isophon K3031 P30/37/10 woofer, DHB 6/2-10 mid/horn crossover is a high-quality and versatile component that is well-suited for professional audio applications. Its adjustable settings and precise crossover design make it a popular choice among audio engineers and system integrators. However, its premium price tag and complex setup may make it a less attractive option for those on a tighter budget or with less experience in setting up professional audio equipment. Ultimately, whether or not this crossover is the right choice for you will depend on your specific application, budget, and expertise.

If you are looking for a high-end and versatile crossover for professional audio applications, the Isophon K3031 P30/37/10 woofer, DHB 6/2-10 mid/horn crossover is definitely worth considering. However, if you are on a tight budget or have limited experience in setting up professional audio equipment, you may want to consider a more affordable and user-friendly option. In that case, you might want to explore mid-range crossovers from more mainstream audio manufacturers, such as Behringer or Yamaha, which offer similar functionality at a more accessible price point.

Details:

If able to pick it up that would be ideal. The components are currently mounted in a hardwood corner speaker as shown the photos. This is a nice Isophon K3031 speaker system consisting of the p30/37/10 woofer, dhb 6/2-10 horn array, and m85/33 crossover. This listing is for the components only in smaller partial board enclosure.

The components all work well and sound good. Shipping is for just the smaller particle board enclosure and speaker components. This listing does not include the hardwood speaker cabinets, but if interested in it we could discuss shipping would be expensive. See photos for details.

If interested in larger hardwood enclosure let me know.

specifications vintaspeaker:

• brand: Isophon
• mpn: K3031
• part type: Horn Crossover
• country of origin: Germany

general vintaspeaker:

• category: Electronics > Audio Video > Vintage Speakers

offer vintaspeaker:

• best offers: true
• started: april 13, 2026
• in stock #: 2
• prices: $580.00–$599.99
• item condition: Used
• options: ship-to-home
• sold #: 5
• availability: in stock

shipping vintaspeaker:

• type: calculated
• service: fedex ground / fedex home delivery
• transit: 4-10 days
• carrier: fedex
• class: standard

seller vintaspeaker:

• rating: 99.8%
• # reviews: 3755
• city: boise, idaho

returns vintaspeaker:

• policy: no returns

payments vintaspeaker:

• credit card: visa
• wallet: apple-pay
• other

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• P38A: SPEAKER, Isophon