Tosunra Crossover Bluetooth, USB Function 2/3way with Sub Out (PE‑23NB) is a professional stereo pre-amplifier and electronic crossover with built-in Bluetooth, USB,
and a dedicated subwoofer output. Designed for 2‑way or 3‑way speaker systems, it lets you split audio into different frequency bands (low, mid, high) for better
control. You can stream music wirelessly via Bluetooth or play files directly from USB. It includes a sub out to drive a separate bass speaker, and typically offers
mic inputs, tone/echo controls, phase switching, filters, and rack-mounted design to fit audio setups neatly.
Features
Bluetooth input for wireless audio source
USB slot for playing digital music files
Subwoofer output to add a dedicated bass speaker
Ability to split audio into 2‑way or 3‑way bands (low, mid, high)
Mic input(s) for vocals
Tone / echo / bass‑treble controls to shape sound
Phase inversion switches for aligning speaker outputs
High‑pass filters (low‑cut) to remove unwanted bass rumble
LED display or indicators for status, clipping, or mode
RCA / XLR output options for flexibility in connections
Rugged design, likely rack‑mountable
Specification
Model : TOS-PE-23NB
Crossover Type : 2-Way / 3-Way Electronic Crossover
Subwoofer Output : Dedicated sub out for low-frequency audio
Bluetooth : Wireless music streaming from phones or other devices
USB Function : Plays music files directly from USB drive
Microphone Inputs : 2 mic inputs with separate volume controls
Echo/Tone Control : Adjustable echo, bass, and treble for vocal tuning
Phase Inversion : Allows phase switch on outputs for better speaker alignment
High-Pass Filters : Removes deep bass noise for cleaner sound
Output Options : Likely includes XLR and RCA for flexible connection
LED Indicators : Shows levels, modes, and crossover status
Cooling System : Ventilation or fan-based cooling
Design : Standard 19-inch rack-mountable body
Dimension (L x W x H): 48.5 x 26.5 x 5 cm
Weight: 3.05 kg
