DSPPA MP135 – 30W Mixer Amplifier with Bluetooth, USB/SD/MP3 & 100V / 4Ω Output
Overview:
• The DSPPA MP135 is a compact 30W mixer amplifier designed for small public address and background music systems
• It supports 4Ω and 100V speaker output, making it suitable for both low-impedance speakers and constant-voltage PA speaker lines
• The amplifier includes built-in MP3 playback, USB / SD card support, Bluetooth, and recording function
• It provides MIC priority, where music volume is reduced automatically during microphone announcements and restored after speaking
• It supports remote infrared control for easier daily operation
• The unit includes independent MIC and Line volume control, plus Bass, Treble, and MIC reverberation adjustment
• The official specification confirms 30W output power, ≥85dB SNR, 80Hz–16kHz frequency response, and compact dimensions 187 × 280 × 65mm.
Key Features:
• 30W mixer amplifier
• 4Ω and 100V speaker output
• Built-in MP3 player
• Supports USB / SD card playback
• Supports multiple audio formats: MP3 / WMA / WAV / APE / FLAC
• Built-in Bluetooth function
• Built-in recording function
• Recording file saved on USB flash drive
• MIC priority function
• Music volume automatically lowers during microphone announcement
• Independent MIC and Line volume control
• Bass and Treble control
• MIC reverberation control
• Supports remote infrared control
• Intelligent line load impedance detection
• Auto protection when speaker line is overloaded or abnormal
• Compact size suitable for small PA systems
Technical Specifications:
• Brand: DSPPA
• Model: MP135
• Product Type: Mixer Amplifier
• Output Power: 30W
• Speaker Output: 4Ω / 100V
• Audio Source: MP3 / SD Card / USB / Bluetooth
• Recording Function: Supported
• Supported Audio Formats: MP3 / WMA / WAV / APE / FLAC
• MIC Priority: Supported
• MIC Input Sensitivity: 50 ± 5mV
• AUX Input Sensitivity: 500 ± 50mV
• Signal-to-Noise Ratio: ≥85dB
• Frequency Response: 80Hz – 16kHz ±3dB
• THD: ≤1% at 1kHz
• Bass Adjustment: 10dB at 100Hz
• Treble Adjustment: 10dB at 10kHz
• Rated Power Consumption: 40W
• Remote Control: Infrared Remote Control Supported
• Dimension: 187 × 280 × 65 mm
• Recommended Use: Small PA / Background Music / Paging Systems
Applications:
• Small public address systems
• Background music systems
• Shops and retail stores
• Offices and reception areas
• Clinics and small medical centers
• Classrooms and training rooms
• Small restaurants and cafés
• Meeting rooms
• Small mosque or prayer room sound systems
• Paging and announcement systems
• 100V line speaker installations
Connect Gates Recommendation:
• Recommended for small projects that need a compact 30W PA mixer amplifier with Bluetooth, USB/SD playback, and MIC priority
• Suitable for small shops, offices, classrooms, clinics, cafés, and light background music systems
• A practical choice when 30W output, 100V speaker line, 4Ω output, microphone announcements, and simple daily operation are required