E48.4D CLASS D DSP Amplifier – High-Efficiency Powerhouse

✅ 4 High-Level + Coaxial/Optical/USB Inputs：Audiophile-grade digital signal transmission.

✅ CLASS D Dual Power Mode：50W×4@4Ω / 60W×4@2Ω, high-efficiency with minimal heat.

✅ CIRRUS LOGIC 3-Core DSP：24Bit/192KHz decoding for studio-level clarity.

✅ 31-Band EQ & 15ms Time Alignment：Pinpoint soundstage tuning for driver-focused audio.

✅ Bluetooth 5.1 & Dual USB Lossless：Play FLAC/APE directly via USB or wireless streaming.

✅ LCD Remote + 10 Presets：Cross-platform control (PC/iOS/Android) with instant switching.

✅ 9-16V Voltage & 0.45A Standby：Energy-saving design for all vehicle types.

Built For：Bass-heavy systems, digital source upgrades, and road trip enthusiasts.

Specification	E48.4D
Input	4High Level/2 RCA/Optical/Coaxial/USB Audio/USB Disk/BT
Input Voltage(Max)	High Level-4-10V,RCA-0.5-2.5V
Output	4 High/8RCA
Output Voltage (Max)	Amplifier output -14Vrms, RCA-2Vrms
Output Gain	Power Amplifier :26 dB
Optical In	YES
Coaxial In	yes
Amplfiier type	CLASS D
Power Output	4x50W @ 4 Ω 4x60W @ 2 Ω
(AD & DA) Signal Convertion	CIRRUS LOGIC SMART HIFI 3-core DSP CS47L35，CS4344
Sampling Rate	24Bit/192KHz ADC/DAC
EQ/Delay	31Band EQ/15ms
Frequency Range	20-20kHz
Q Value(Slope)	0.5-9
EQ Gain	-18.0dB +12.0dB
Filtering	Butter , Bessel, Link
Filtering Crossover point	20-20kHz
Filter slope	6dB/oct -48dB/Oct
Phase	0-180
Time Alignment (delay)	15ms
Preset	10
Frequency Respone	20-20kHz
Signal to Noise - RCA	85dB
Signal to Noise - Power Amp	87dB
Input Resistance	20kΩ
Low level output Resistance	680Ω
Static Current	0.45A
Operating Voltage	9-16V
Working Current Range	0.5-18A
Temperature resistance	NA
Bluetooth	Yes
Bluetooth Version	5.1
USB Audio Built in	YES
USB DISK	mp3, wma,wav, m4a, aac and lossless format FLAC, APE
Remote(purchase separately)	LCD
PC Connection	yes
PC Software	yes
Android App	yes
IOS app	yes
Auto Tuning	NA
REM Input	3.5V
REM Output	0.1A
Over heat protection	NA
Over Load Protection	NA
Working Indicators	YES

rms power :	4x50W@ 4Ω 4x60W@ 2Ω
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