Vertek/XTC Building Block Series crossovers are designed to be versatile and made with with high quality components. Each frequency band can be selected to best match the speakers application or use. Impedance, frequency, bandwidth and slope can be chosen from a large selection of preassembled crossovers for each speaker. Used together they can make any combination. 2-way, 3-way or greater system can be designed from this approach. Select a crossover for each speaker in the woofer, bass mid, midrange and tweeter group. All Building Block Crossovers allow for impedance selection to match the ohm rating of your speakers, crossover frequency to match your other speaker capability, and slope selection to allow blend over between speakers in your system. All models are available enclosed or open board style. Our tech support can help you match a single crossover or an entire crossover group to your speakers.

Low Pass Low Pass
Low Pass Crossovers will attenuate or block the high frequencies from reaching the speaker that is connected to it. This design is used for subwoofer and woofer applications and allows the bass notes or low frequency to play pass to speaker it is connected to. Choose from multiple combinations of frequencies, impedance and slopes.
Band Pass Band Pass
Band Pass Crossovers will pass a spectrum of frequencies and block the low frequency band and high frequency band and only allowing middle frequencies to play or pass. This design is primarily used for mid-bass and midrange speakers. They are designed to match with the woofer roll off and protect the midrange or mid-bass speaker from harmful low frequency, at the same time cut off the upper frequencies so that the tweeter can correctly blend into the system. A band pass crossover can also prevent the summing effect caused by multiple speakers operating, or overlapping in the same frequency band.
High Pass High Pass
High Pass Crossovers will block low frequencies from reaching a speaker and only allow the high or upper frequency band to pass to the speaker. This design is mostly used for tweeters and upper frequency midrange speakers. We suggest using a stepper slope, 12db or 18 db for most tweeters and a minimum crossover point that is double the resonant frequency for the best power handling and sonic quality.