Stetsom HL 800.4 Amplifier 2-ohm 800W RMS 4-Channels Car Audio Amplifier

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STX2448 2-Input 4-Output Digital Audio Processor

Developed for those seeking high performance and sound fidelity in automotive amplifiers, the HL800.4 is a 800W RMS product with 4 Channels of 225W RMS and great installation versatility. It features independent front and rear channels such as LEVEL to adjust the input signal level and Crossover, allowing you to choose between LOW-PASS, HIGH-PASS or FLAT (FULL-RANGE) operation.

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).

Stetsom HL800.4 2 Ohm Specifications:

Number of Channels: 4
Minimum Output Impedance: 2 Ohms
RMS Power at 1 Ohm 12.6V: 4 x 225W RMS (STEREO)
RMS Power at 2 Ohm 12.6V: 4 x 140W RMS (STEREO)
RMS Power at 1 Ohm 13.8V: 4 x 260W RMS (STEREO)
RMS Power at 2 Ohm 13.8V: 4 x 165W RMS (STEREO)
Power @ 12.6V Bridge 2 Ohms: 2 x 450W RMS
Power @ 13.8V Bridge 2 Ohms: 2 x 520W RMS
Input Sensitivity: 0.2V
Signal-to-Noise Ratio: > 90 dB
Frequency Response: 20 Hz ~ 22 KHz
Crossover:
H.P.F (High Pass Filter): 90Hz
L.P.F (Low Pass Filter): 90Hz
Input Impedance: 14K Ohms
Minimum Power Supply Voltage: 9 VDC

Stestom STX2448 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
Release: 1 ~ 1600ms (manual/automatic)
Master Level and Gain: 0 ~ 100% (Gain -45 ~ +15dB per output)
Memory Positions Save/Load: Autosave + 5 slots
Security: 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

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