The AMPMA40X 40-Watt Digital Mini Amplifier from OWI Inc. is a compact Class D amplifier capable of up to 20 watts per output channel at 4 ohms. It has selectable stereo RCA and 3.5mm line inputs as well as a 3-pin phoenix mic level input with assignable 48-volt phantom power. The AMPMA40X can function in stereo, bridged, or dual mono output modes to integration into a variety of set-ups.

The unit features bass and treble EQ controls to help shape your sound. The EQ, volume, and input levels can be controlled via the buttons on the unit or with the included OWI Inc. remote control and sensor.

2x 20W @ 4Ω Output    Stereo RCA & 3.5mm Line Inputs    3-Pin Phoenix Mic Input    Bridgeable & Dual Mono Output    Bass & Treble Control    3.5mm Output    Includes Remote

Two Stereo Audio Inputs Switchable by Button, IR Remote or RS232

Volume, Bass, and Treble Controllable by Button, IR Remote or RS232

Line Audio Output at 3.5 mm Jack with Volume Control

Bridge Connection Function

Dual-Mono Function

Microphone Mixer Function

Mic Input Supports 48 V Phantom Power, Dynamic Mics and Wireless Mics

Mic Port Supports Balanced & Unbalanced Signals

Auto Noise Gate Detects Audio and MIC Inputs

Ultra-Low Inrush Current - No Power Sequencing, No Overload for Multiple AMPMA40X Units

Convection Cooler; Fan Not Needed

Protective, Anti-Static Case Design

LED Indicator for Power and Working Status

International Power Supply - 100-240V AC, 50/60 Hz

CE approved

Related Questions and Answers

Q: 1. Can the USB port be used for a Bluetooth USB adapter to stream audio?

A: No, the USB port on the Pyle Pro PTAU45 Mini Stereo Power Amplifier cannot be used to connect a Bluetooth USB adapter, however, you can use a Bluetooth adapter with a standard analog audio plug to connect to the RCA aux inputs or the 3.5mm CD/MP3 input. The Aluratek iStream DockFree Bluetooth Audio Receiver (B&H # ALAIS01F) could be a good option for a Bluetooth adapter. It has a 3.5mm plug and comes with an RCA adapter.

Q: 2. How to troubleshoot a PYLE PTA4 amplifier, when i turn it on the blue LED just blink and gone though power indicator stay on?

A: Please contact the manufacturer directly for service under warranty:Pyle ProTel: 800-444-5671Email: support@a href= http://pyleaudio.com target= _blank pyleaudio.com/aWebsite: a href= http://www.pyleaudio.com/ target= _blank http://www.pyleaudio.com//a

Q: 3. Do the treble and bass controls work on the headphones output?

A: You should have no issues using treble and bass control when headphones are connected.

Q: 4. Can I connect this to 2 bookshelf speakers (KD-51M) and my computer with a 3.5mm to RCA cable?

A: The Pyle Pro PTA4 Mini 2 x 120 Watt Stereo Power Amplifier w/ AUX/CD Input (BH # PYPTA4) will connect to most computers with a 3.5mm audio output via an RCA "Y" cable: Comprehensive 10' Stereo 3.5mm Male to Dual RCA Male Y-Cable (B&H # COMPS2PP10ST): https://bhpho.to/4a7ArnO

Q: 5. Pyle Pro PTAU45 Mini 120 Watt x 2 Stereo Power Amplifier, can you plug in an iPod to the USB connection and listen to music, assuming you have speakers hooked up?

A: I never tried that because I have a Harmon Kardon BTA-10 Bluetooth receiver that I also bought at BH Photo connected to one of the Aux inputs. It works great and has an amazing receive distance. I got no strings on me!

Q: 6. can these two channels be bridged?

A: to the best of my knowledge, no. Basic 2 channel amp, but it does what it is supposed to do well with low distortion and dependable output levels. I used it for wired speakers on my patio, Bose, that are not that efficient, but it drives them well and cleanly. Hope this helps.

Q: 7. Bass +__?__ dB / Treble +__?__ dB How many dB boost for the tone controls. Bass +10dB, +12dB, +15dB or what.?? WE need to know.

A: Sorry but can't help you. Mine broke within a year after I bought it. I had to go back to using my 25-year Radio Shack amp which still works same as when new.

Q: 8. What kind of mic do i need to use with this amp?

A: Use a dynamic type microphone: Example: Audio-Technica ATR1200 Cardioid Handheld Dynamic Microphone B&H # AUATR1200

Q: 9. Does this allow microphone to be used at same time with other sound source like aux? So is it a mini mixer+amplifier likely thing?

A: Correct: Switchable MIC PAGER and MIXING ModesSet to PAGER, the signal from AUX 1/AUX 2/CD will be attenuated BY -12dB and the signal from MIC will override to page (Auto Talkover), it is good for paging system. Set to MIXING, the signals from AUX 1/AUX 2/CD and MIC will be existed at the same time, it acts like playing at KARAOKE event.

Q: 10. Can I connect my nextbook for better sound?

A: You can hook up any audio source with an auxillary cord. I've used phones, iPads, and IPods without an issue so I'm assuming your Nextbook would be similar.