Fender 1225HP Professional Loudspeaker Enclosure User Manual

Quick guide from the manual

The Fender 1225HP is a professional, two-way, full-range loudspeaker designed for permanent or portable sound reinforcement. This manual provides essential information on speaker wiring, bi-amp operation, and adjusting the horizontal dispersion pattern. Caution: Speakers produce strong magnetic fields; keep them at a distance from sensitive electronic devices like computer monitors or televisions to prevent interference.

Speaker wiring and connections

The 1225HP features 1/4" phone jacks and Neutrik Speakon connectors wired in parallel, allowing for easy daisy-chaining of multiple cabinets. In normal passive mode, the connections are as follows:

• Positive (+): Tip (1/4") or 1+/2+ (Speakon)
• Negative (-): Sleeve (1/4") or 1-/2- (Speakon)

When connecting multiple speakers, parallel wiring is recommended so that if one speaker fails, the others continue to operate. Always use appropriate gauge speaker wire based on the length of the run to ensure maximum power transfer.

Horn dispersion adjustment

The 1225HP uses a Controlled Dispersion horn. You can adjust the horizontal coverage pattern by installing or removing horn inserts:

1. Remove the Phillips head screws from the grille and lift it away.
2. To attach inserts, place the wider end under the front lip of the horn and guide the smaller end under the ribs near the throat.
3. The insert is secured by three ridges.
4. Reinstall the grille.

Installing both inserts achieves a 60-degree coverage pattern, while removing them provides a 90-degree pattern.

Bi-amp operation

For advanced setups, the 1225HP can be switched to bi-amp mode using the switch on the back of the cabinet. This disables the internal crossover. Important: When set to external/bi-amp mode, you must use an external electronic crossover and separate power amplification for low and high frequencies. Never plug a full-range signal into the high-frequency input in this mode, as it will destroy the compression driver.

Carpet covering care

The cabinet is covered in a durable indoor/outdoor synthetic carpet. Clean it by wiping with a sponge and a light soapy water solution. For stubborn stains, use a more concentrated solution or carpet shampoo with a brush. Avoid spilling liquids on the input panel, grille, or speakers.