Stetsom STX 2448 DSP Crossover & Equalizer 4 Channel Full Digital Signal Processor (Sequencer)




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Through an LCD display and an intuitive interface, it allows real-time audio adjustments.

The STX2448 features 2 audio inputs (A and B) and 4 independent outputs, and allows you to choose the audio source (A, B or A + B) for each output.

It has an integrated equalization system, with 15-band graphic equalizer, manual tuning or through 12 presets (Flat, Loudness, Bass Boost, Mid Bass, Treble Boost, Powerful, Electronic, Rock, Hip Hop, Pop, Vocal and Pancadão).

For professional equalizer settings, it has 5 Parametric Equalizers with gain control, frequency specific setting and equalizer bandwidth. Allowing fine adjustments and detailed equalization control.

The Crossover function enables you to precisely define cut frequencies, attenuation rates and topology of the LowPass and HighPass filters with Butterworth and Linkwitz-Riley filters (12/18/24/36/48 dB / 8ª).

To aid in the protection of amplifiers and loudspeakers, the STX2448 features a Limiter with Dynamic Attack-Release system that dynamically controls the Attack and Release parameters in real time, providing security and sound fidelity.

In the audio treatment, it also has Alignment capabilities through High Accuracy Delay, Phase Inversion, Independent Gain by Output and Master Level.

It also has the functions of management, Save and Load Settings in memory, Security Password that blocks the editing of the parameters, Marquee / Text Display and Language Selection (English, Spanish, Portuguese).

Technical Specifications

Number of Channels 2 input / 4 output
Graphic Equalizer 15 Bands (gain aprox. 12dB)
Graphic Equalization Presets 12
Parametric Equalizer 1 input + 1 per Output (gain aprox. 12dB, Factor Q 0.4 ~ 10.0)
Crossover Variable Frequency Butterworth: 12/18/24/36/48 dB/8ª - Linkwitz-Riley: 12/18/24/36/48 dB/8ª
Routing bet. Input and Output A, B or A+B
Alignment 0 ~ 8ms (275cm)
Phase Inversion 0° ~ 180°
Limiter Threshold: -24 ~ 0dB / Attack: 0.1 ~ 100.0ms and Release: 1 ~ 1600ms (manual/automatic)
Master Level and Gain 0 ~ 100% (Gain -45 ~ +15dB per output)
Memory Positions Save/Load Autosave + 5 slots
Secutiry Password with 4 digits
Frequency Generator 10Hz ~ 22kHz, Level -60 ~ 0dB
Frequency Sweep Freq. initial and final 10Hz ~ 22kHz (Level -60 ~ 0dB and Speed Control)
Pink Noise Generator 10Hz ~ 22kHz and Level -60 ~ 0dB
Screensaver Editable text with 15 characters
Languages Portuguese, English and Spanish
Latency 1.08ms
Input Impedance 10KΩ
Output Impedance 47Ω
Max. Input and Output Voltage 5.6 Vpp (+8.2 dBu)
Max. Output Current SEQUENCER 180 mA per output
Saturation Indicator 1 per input + 1 per output (linked to the Limiter)
Signal-to-noise ratio >90dB
Total Harmonic Dist. (T.H.D) <0.01%
Channel Separation >80dB
Power supply 9V ~ 16V DC
Max. Current Consumption 350mA @ 12.6V DC