Tosunra Crossover (234XL) is a versatile audio crossover that splits sound into multiple frequency bands for improved speaker performance. It can
operate in stereo 2-way or 3-way modes, as well as mono 4-way mode, allowing precise control over lows, mids, and highs. Featuring balanced XLR
inputs and outputs, individual volume and phase controls, and smooth Linkwitz-Riley filters, it ensures clean, clear sound separation. Additional
features like a low-frequency summed output, frequency range switch, and LED indicators make it a reliable choice for professional audio setups.
Features
Supports stereo 2-way, stereo 3-way, and mono 4-way modes.
Balanced XLR inputs and outputs for professional connections.
Independent volume controls for each frequency band.
Phase reverse switches for precise sound alignment.
Smooth Linkwitz-Riley 24 dB/octave filters for clean frequency separation.
Low-frequency summed output for subwoofer integration.
Frequency range switch to extend crossover options.
Built-in high-pass filter to remove unwanted low frequencies.
LED indicators to show mode and filter status.
Durable design suitable for professional audio use.
Specification
Input Connectors : XLR
Input Type : Electronically balanced/unbalanced, RF filtered
Input Impedance : Balanced >50k ohm, unbalanced >25k ohm
Max Input : >+21dBu balanced or unbalanced
CMRR : >40dB, typically >50dB at 1kHz
Output Connectors : XLR
Output Type : Impedance-balanced/unbalanced, RF filtered
Output Impedance : Balanced 200 ohm, unbalanced 100 ohm
Max Output : >+21dBu balanced/unbalanced into 2k or greater
Bandwidth : 20Hz to 20kHz, +/-0.5dB
Frequency Response : < 3 Hz to > 90 kHz, +0/-3 dB
Signal to Noise Ratio : Ref: +4 dBu, 22 kHz measurement bandwidth
Signal-to-Noise (Stereo Mode) : >94dB (Low Output), >93dB (Mid Output), >92dB (High Output)
Signal-to-Noise (Mono Mode) : >94dB (Low Output), >94dB (Low/Mid Output), >92dB (High/Mid Output)
Dynamic Range : > 114 dB, unweighted, any output
THD + Noise : < 0.004% at +4 dBu, 1 kHz; < 0.04% at +20 dBu, 1 kHz
Inter channel Crosstalk : < -80 dB, 20 Hz to 20 kHz
Crossover Frequencies (Stereo Mode) : Low/High: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting)
Crossover Frequencies (Mono Mode) : Low/Mid: 45 to 960 Hz or 450 Hz to 9.6 kHz (x10 setting); High-Mid/High: 450 Hz to 9.6 kHz; Low-Mid/High-Mid: 450 Hz to 9.6 kHz
Crossover Filter Type : Linkwitz-Riley, 24 dB/octave, state-variable
Low cut Switch : Activates 40 Hz Butterworth, 12 dB/octave high-pass filter, one switch per channel.
Phase Invert Switch : Inverts the phase at the output, one switch per output.
x1 / x10 Switch : Multiplies the low-high(mono: low/mid and high/mid) crossover frequency range of the front-panel markings by a factor of 1 or 10, one switch per channel.
Mode Switch : Selects stereo 2-way or mono 3-way operation and disables all LEDs for controls that are non-functional in the selected mode.
