Nexus HF450 High-Frequency Speaker Crossover Network

• Dedicated high-frequency passive crossover network designed specifically to protect and filter audio signals for compression drivers and horn tweeters.
• Power-matched to handle 60 to 80 Watts RMS, offering optimal frequency shaping for high-frequency units with 44 mm (1.7-inch) voice coils.
• Features a precisely calibrated 3000Hz crossover threshold, cutting off low- and mid-range frequencies that cause voice coil distortion and thermal failure.
• Built with precision-wound inductors and high-grade film capacitors to maintain signal clarity, transparent highs, and low harmonic distortion.
• Ideal for 2-way and 3-way PA speaker repairs, stage monitor upgrades, horn driver protection, and custom loudspeaker design.

Features

• Targeted High-Pass Filtering: Filters out damaging frequencies below 3000Hz to prevent driver excursion damage and voice coil burnout.
• 44mm / 1.7" Driver Matching: Engineered specifically to complement the impedance and power characteristics of 1.7-inch voice coil compression drivers.
• Compact PCB Footprint: Small-form circuit board allows easy mounting inside compact horn flares, main enclosures, or secondary crossover bays.
• High-Thermal Stability: Utilizes heat-resistant components to handle sustained upper-mid and high-frequency power spikes without signal attenuation.
• Simple Solder Terminal Layout: Clearly marked positive and negative terminals facilitate straightforward installation and driver replacement.

Specifications

• Model / Part Number: XO-HF450
• Product Type: High-Pass Crossover Network
• Power Rating: 60W - 80W RMS
• Crossover Frequency: 3000 Hz
• Target Driver Voice Coil Size: 44 mm (1.7 Inches)
• Filter Type: High-Pass Passive Filter
• Nominal Impedance: 8 Ohms
• Application: Compression Driver Protection, Horn Tweeters, PA Speaker Enclosures, Stage Floor Monitors

What's in the box
1 x Nexus XO-HF450 High-Frequency Crossover Circuit Board