SpeakerAddict is excited to bring you this series of high-power heavy duty passive crossovers optimized for use with professional audio speakers that use horn loaded compression driver tweeters.  

This model is used in the Harbinger HX152 dual 15 speaker cabinet and a few other B-52 models.  It has good length heavy gauge twisted wires with push on connectors in the woofers and inputs.

This has approx 8dB attenuation on the horn and a 3dB bulb variable compressor protection circuit.  It also features a rising response on the horn output to flatten out the top end from the falling response of most compression drivers

If you have a dual 15 box with 1" throat compression driver with voice coil  of 1.5"- 2", this will be a perfect replacement or starting point for your own custom build

12dB/octave network features high quality, low-loss components with Inaudible Protection Circuitry (IPC) preventing diaphragm failure at maximum SPLs.

• Power Handling (RMS): 600W
• Power Handling (Peak Sine): 1200 Watts
• Power Handling (Peak Program): 2400W
• Use with dual 8ohm woofers and 8ohm compression driver tweeter
• Nominal Impedance: 4 Ohms

ATTENUATION – depending on model, there are varying levels of fixed HF attenuation.  Look at the difference in efficiency of the woofer & HF driver you are using and select a crossover that offsets that as closely as possible taking the actual response curves of drivers and crossover into consideration – Stated reference point is where the system would be flat in relation to the woofer if native curves had this amount of efficiency offset – stated EQ boost is the amount of upward sloping boost measured at 20Khz in dB above the attenuation ref point

EQ – depending on model, there are varying levels of fixed HF EQ are available.  All boost a bit at the top as compression drivers most typically roll off the top end. Use models with more of an upward HF curve (red) for compression drivers that fall off more on top.  Essentially you want this curve to be about the opposite of the response curve of your driver so the resulting system output will be closest to flat as possible.  Again, stated EQ boost is the amount of upward sloping boost measured at 20Khz in dB above the attenuation ref point

HF PROTECTION – Some models have what looks like a fuse on them.  This “fuse” is actually a light bulb that will light up to consume some current when pushing your system hard.  This effectively acts as a soft knee compressor and offers up to around 3dB of attenuation when fully lit which is = to half power.  In layman’s terms, variable and effective tweeter protection that you will never know is happening.  There is a resistor wired in parallel to the bulb which is why the attenuation level is less and slower than in other uses and also makes sure you will never fully go down in the event the bulb blows (extremely rare)