Stetsom STX 2436BT Bluetooth DSP Crossover & Equalizer 4 Output Processor

Stetsom STX 2436BT Bluetooth DSP Crossover & Equalizer 4 Output Processor
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The Stetsom STX 2436BT Bluetooth DSP Crossover & Equalizer 4 Output Processor is a compact digital signal processor built for car audio systems that need better tuning control, cleaner signal management, and more flexibility than a basic head unit or amplifier crossover can provide.

If you are trying to dial in mids, highs, tweeters, midbass, subwoofers, or a full front-stage setup, the STX 2436BT gives you powerful tuning tools in a small footprint. With Bluetooth communication, this processor can be viewed and configured remotely through compatible Android and iOS smartphones, making it easier to adjust the system without constantly reaching for the processor itself.

The STX 2436BT allows real-time adjustment of equalization, crossover filters, alignment, gain control, phase inversion, limiter settings, digital input and output routing, and other audio treatments. That makes it a strong choice for daily drivers, sound quality builds, pro audio door systems, motorcycle audio, UTV audio, and custom car audio systems where tuning control matters.

A DSP can make a major difference when the rest of the system is installed correctly. If your system has strong speakers and amplifiers but still sounds harsh, muddy, unbalanced, or hard to control, a processor like the STX 2436BT can help you clean up crossover points, balance output levels, control speaker behavior, and improve how the system blends together. If you are still learning how DSP tuning works, read our DSP tuning guide before making major changes.

Key Features:

• Bluetooth digital signal processor for car audio tuning
• 2 input channels through RCA or high-level input
• 4 output channels for flexible system control
• 15-band graphic equalizer
• 5-band parametric equalizer
• Variable crossover filters
• Input and output routing control
• Time alignment adjustment
• Phase inversion control
• Limiter control for output protection
• Frequency generator, frequency scan, and pink noise generator
• Battery voltage monitoring
• 6-digit password protection
• Compatible with Android and iOS app control
• Compatible with the Stetsom SMC remote control, sold separately

Audio Control & Tuning:

The Stetsom STX 2436BT is made for systems where you need more control over how the speakers and amplifiers work together. Instead of relying only on basic radio settings or amplifier crossover knobs, this DSP gives you deeper control over the signal before it reaches the amplifiers.

• Graphic EQ: 15-band graphic equalizer with gain adjustment up to plus or minus 12 dB
• Parametric EQ: 5-band parametric equalizer with input and output adjustment
• Crossover Control: Butterworth and Linkwitz-Riley crossover filter options
• Alignment: Time alignment from 0ms to 8ms
• Phase: Phase inversion from 0 degrees to 180 degrees
• Limiter: Adjustable threshold, attack, and release control
• Output Gain: Adjustable output gain from -45 dB to +15 dB per output

This level of control is useful when tuning front stages, midrange speakers, tweeters, midbass drivers, subwoofers, and multi-amplifier systems. If you are working on speaker tuning, our Car Audio Speaker Tuning Guide can help you understand how crossover points, EQ, gain, and speaker balance all work together.

Input, Output & System Integration:

The STX 2436BT gives you 2 input channels and 4 output channels, making it a useful processor for simple and advanced systems. You can use RCA input from an aftermarket radio, or high-level input when integrating with certain factory-style systems. The output channels can then be routed and tuned to match your amplifier and speaker layout.

This makes the processor useful for setups like:

• Front speakers and subwoofer control
• Mids and highs systems
• Pro audio door builds
• Two-way front stages
• Small multi-amplifier systems
• Systems needing better crossover and EQ control
• Builds where Bluetooth tuning access is helpful

For best results, pair this processor with clean RCA signal, quality wiring, correct gain structure, and properly matched amplifiers. If you are building the system piece by piece, shop our car audio wire and browse our Stetsom car audio collection for amplifiers, DSP processors, equalizers, and related gear.

Sequencer Feature:

The STX 2436BT includes a remote sequencer feature that allows programmed startup and shutdown control for up to three products through the S1, S2, and S3 remote startup connections. This can be helpful in more advanced systems where you want cleaner turn-on behavior and better control over connected equipment.

Technical Details:

• Input Channels: 2 x RCA or 2 x high-level input
• Output Channels: 4
• Graphic Equalizer: 15 bands
• Graphic EQ Presets: 12
• Parametric Equalizer: 5 bands
• Crossover Presets: 11
• Routing: A, B, or A+B between input and output
• Alignment: 0ms to 8ms
• Phase Inversion: 0 degrees to 180 degrees
• Master Level: 0 to 100%
• Frequency Generator: 10Hz to 22kHz
• Frequency Response: 10Hz to 22kHz at 0 dB
• Signal to Noise Ratio: Greater than 90 dB
• Total Harmonic Distortion: Less than 0.01%
• Channel Separation: Greater than 80 dB
• Power Supply: 10V to 15V DC
• Bluetooth Version: Low Energy
• Bluetooth Range: Up to 15 meters
• Compatibility: Android 5.0 or higher and iOS 12 or higher
• Dimensions: 1.3" H x 3.8" W x 7.4" L
• Weight: 0.40 lb

Installation Notes:

Proper installation and tuning are important with any DSP. A processor gives you more control, but it also gives you more ways to make the system sound wrong if the settings are not handled correctly. Start with clean signal, correct power and ground connections, good RCA routing, proper gain structure, and safe crossover points for the speakers being used.

If your system has engine noise, ground loop issues, alternator whine, or poor grounding, fix those problems before trying to tune around them with a DSP. Tuning should improve a solid install, not cover up wiring problems. If you are still working on the foundation of the system, check out our Car Audio Wire Gauge and Fuse Guide and browse car audio electrical upgrades.

Who is the Stetsom STX 2436BT For?

• Customers adding DSP control to a car audio system
• Daily drivers needing better sound balance
• Mids and highs builds
• Pro audio door speaker systems
• Front-stage tuning setups
• Motorcycle, UTV, and compact audio builds
• Installers who need Bluetooth tuning control
• Systems that need crossover, EQ, alignment, limiter, and routing control

If you want better control over how your car audio system sounds, the Stetsom STX 2436BT Bluetooth DSP Crossover & Equalizer 4 Output Processor gives you the tuning tools needed to clean up the signal, balance the system, and build a better-sounding setup.

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