Pyle PDA4BU Wireless Bluetooth Home Stereo Amplifier
- 200 watts peak power, 25 watts at 4 ohm max output
- 9 total inputs, includes optical, phono, coaxial and USB/SD
- 2 quarter-inch mic inputs, with talk-over priority function
- 40-plus foot Bluetooth range
- 1-year limited warranty
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact stereo amplifier built for karaoke and casual home use, combining phono and digital inputs with mic talk-over in a modest power output suited to smaller rooms.
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ASIN: B081QGYJ9CModel: PDA4BUCategory: AV Receivers
Overview
A rotary front control panel and digital LED display run this compact stereo amplifier, which mixes phono, optical, coaxial and USB or SD audio sources into a pair of speaker outputs. A talk-over circuit lowers the music automatically when a microphone is active, making it suited to karaoke or small gatherings.
Multiple separate inputs and a dedicated mic talk-over circuit make this useful for karaoke nights or mixed audio sources without a mixing board. Output stays modest, so pairing it with large or inefficient speakers will limit how loud a room can get.
Who it's for
A bedroom, den or small gathering space benefits from the mix of phono, digital and mic inputs here. A larger living room or a setup built around high-power tower speakers needs more output than this amplifier is rated to deliver.
Pros and cons
- Nine inputs cover phono, digital and microphone sources
- Talk-over function lowers music when a mic is active
- Front panel LED display shows adjustments clearly
- Bluetooth pairing works with common smartphones and tablets
- Output power is modest for larger rooms
- Two channel design does not add surround channels
- Remote battery type is not listed
Performance notes
The mic priority circuit senses an active microphone signal and ducks the music level automatically, then restores it once the mic goes quiet. Bass, treble, master and mic volume adjust through analog rotary controls ahead of the amplifier stage, and short-circuit protection shuts the output down if the speaker wiring faults.
Specifications
| Brand | Pyle |
|---|---|
| Model | PDA4BU |
| Dimensions & fit | |
| Dimensions | 10.2 × 9.8 × 2.8 inches |
| Power & efficiency | |
| Power | 200 wattshigher than 59% of 40 av receivers |
| Construction & materials | |
| Color | Black |
| Compatibility & installation | |
| Connectivity | Bluetooth |
| Other details | |
| Brand Tech | Pyle |
| Channels | 2 |
Closest rivals on specs
Onkyo TX-RZ30 9.2-Channel AV Receiver- Power 200 vs 170 watts (+18%)
Frequently asked questions
How big is the Pyle PDA4BU amplifier?
It measures about ten inches deep by ten inches wide and under three inches tall, small enough for a shelf or desk rather than a full-size stereo cabinet.
Can the PDA4BU power large tower speakers?
Its rated output is modest, so it fits smaller or more efficient speakers better than large, low-sensitivity towers.
Does the Pyle PDA4BU work for karaoke?
Yes, it has two microphone inputs with an automatic talk-over function that lowers the music when someone is speaking or singing.
What audio sources connect to the PDA4BU?
It accepts optical, phono and coaxial digital inputs plus USB, SD, aux and RCA, covering most turntables, CD players and streaming boxes.