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Shinjitsu Audio

Upgrade you existing Horn 2, Horn 2 PLUS 2 or Horn X2 to the new PRO model (per pair)

Upgrade you existing Horn 2, Horn 2 PLUS 2 or Horn X2 to the new PRO model (per pair)

Regular price $349.00 USD
Regular price $1,199.00 USD Sale price $349.00 USD
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Purchase Options

Already Own a Horn? Upgrade to PRO

Turn your Horn 2, Horn 2 PLUS 2, or Horn X2 into a full Horn X2 PRO. Send us your current unit, and we’ll retrofit it with the latest symmetrical crossover and cradle horn mount. No need to buy new — we bring your horn up to PRO spec for you.

  • ♻ Retrofit service for existing Horn units
  • ⚡ Includes new symmetrical 2nd-order crossover
  • 🪵 Includes inert cradle mount system
  • 📦 Fast turnaround (about 2 weeks)

→ Start My Upgrade


🔧 What’s Included in the Upgrade

When you choose the upgrade service, we replace and refit your unit with everything that makes the Horn X2 PRO unique:

  • ✔ Symmetrical 2nd-order high-pass/low-pass at ~1650 Hz
  • ✔ Adjustable horn volume and selectable voicing modes (Chebyshev-like, Butterworth, Bessel-like, or hybrid)
  • ✔ Inert PLA cradle mount — no tools, no braces, no vibration
  • ✔ Retuned and tested before shipping back to you

You keep your original horn body and driver — we supply the full PRO electronics and cradle system.


📦 How the Upgrade Works

  1. Place your order for the upgrade service
  2. We email you instructions for shipping your Horn 2 / Horn X2 to us
  3. We retrofit it to full PRO specification
  4. We ship it back ready to play — usually within 2 weeks

Note: Service includes $300 upgrade fee + $49 flat return shipping (domestic). International customers, please contact us for shipping rates.


❓ Frequently Asked Questions

1. What models qualify for the upgrade?

The Horn 2, Horn 2 PLUS 2, and original Horn X2 can all be upgraded to PRO specification.

2. Do I get new drivers or horns?

No — you keep your original horn and compression driver. We update the crossover, voicing system, and cradle mount. The performance matches the PRO spec.

3. How long does it take?

About 2 weeks from the day we receive your unit to the day it ships back to you.

4. What if I want a different wood finish?

Wood plinth swaps are possible at additional cost. Please contact us for options.


Upgrade Today

Get the full performance of the Horn X2 PRO without buying a new unit. We retrofit your existing horn with the same precision crossover and cradle mount used in every PRO build.

→ Order Horn Upgrade Service

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