Got it new in the box from a person who owed me money, don't know much about it, never used it. Plugged in to the power outlet and connected 1 speaker to make sure it works.
eBay
With its integrated design and sleek black color, the KA-89 amplifier combines both style and functionality for a retro audio experience. Stereo Integrated Amplifier. 1990s Audio. This has not been tested, but it was plugged in and powered up with no trouble.
eBay
DC 5V Bluetooth 5.0 MP3 Decoder Board 6W Amplifier MP3 Player Support Call Recording 3.5mm USB TF FM for Module Car Speaker
AliExpress
Preamp Power amp – 80 WPC into 6 Ohms Headphone amp DAC iPod dock (not working with included iPhone) Works/test tested on AUX 1 Was working on AUX2 until I disconnected the RCA cables and the input plug disintegrated. See pics. Doesn’t work with iPhone dock (iPhone included in the sale) No optional remote Includes optional wooden cabinet shown Includes high-end power cord shown - worth $100 alone. Unit is heavy. FIXED FedEx Ground $50 US sales only Sold AS IS ABSOLUTELY NO RETURNS NO RESERVE
eBay
Pair Nordost Blue Heaven Speaker Cable Hifi Audio Audiophile Cable Falt Loudspeaker Wire Amplifier Banana plug to Spade Line 3M
AliExpress
This is the v1 version of the Sphinx. We start by connecting the "Pre-Out" jacks of the integrated to a Sencore PA81 Power Analyzer which simulates real world loading conditions and gives us an oscilloscope interface.
eBay
QGeeM Jack 6.5 6.35mm Male Plug to 3.5mm Female Connector Headphone Amplifier Audio Adapter Microphone AUX 6.3 3.5 mm Converter
AliExpress
Lyngdorf TDAI-1120 provides the ultimate in flexibility. All the user-friendly features you could ask for and paired with Lyngdorf Audio’s world-famous digital amplification technology and patented RoomPerfect™ room correction for the ultimate listening experience.
eBay
JCD 1Set Sound Audio Amplifier Enhancement Speaker For Gameboy Color GBC GBA GB Digital Amplifier PCB Board Volume Up Module
AliExpress
Great sound !
eBay
TPA3110 XH-A232 30W+30W 2.0 Channel Digital Stereo Audio Power Amplifier Board DC 8-26V 3A for Arduino
AliExpress
Arcam SA30 Stereo integrated amplifier with built-in DAC, Wi-Fi, and Apple AirPlay® 2. Arcam SA30. This is the kind of amp I'd like to build a good two-channel system around. The resulting sound is more realistic and transparent, with tighter bass and reduced room effects.
eBay
Nice condition RCA (sold at Radio Shack) SA-155 stereo amplifier. Tested and working great. See images for overall condition. No returns. Thank you for looking.
eBay
AK45 HiFi Digital Bluetooth Audio Amplifier MP3 Channel 2.0 Sound Power AMP stereo Home Automotive Car for Speakers MAX 350W*2
AliExpress
Marantz has been making this type of rugged, versatile integrated amp for years now, but they never rest on their laurels. The PM6007 builds on the legacy of its predecessors, upgrading the built-in 24-bit/192kHz digital-to-analog converter to ensure accurate, detailed playback of digital sources.
eBay
DC 8V-24V 2*60W Amplifier MP3 Decoder Board 120W MP3 Player Bluetooth V5.0 USB Module FM AUX Radio Recording For Speaker
AliExpress
"The ARCAM A15 is the power house, with 80 Watts of output per channel. The A15 is the latest in more than 45 years of amplifier design and manufacture. New components and materials have been painstakingly analysed and reviewed to ensure brilliant sound performance.".
eBay
Voice Playback Module Board MP3 Music Player 5W MP3 Playback Serial Control SD/TF Card DY-SV5W
AliExpress
ONKYO A-905TX Stereo Integrated Amplifier. Condition : Used. I cordially answer it.
eBay
eBay
DLHiFi 8pcs HiFi Audio Speaker DAC Amplifier Shock Absorber Feet Pad Vibration Absorption Rubber Anti-shock Self-adhesive
AliExpress
These are nearly impossible to find in new condition—most available units are used, with wear from decades of use. This is your chance to own a pristine piece of audio history. • Made in Japan – Legendary Yamaha quality.
eBay
Volume Amplifier Module for Gameboy Advance Color Pocket GBA GBC GBP GBA SP Low Power Digital Sound Audio AMP
AliExpress
Got this amplifier in a trade but already have another. I turned it on and made sure it worked before making this listing.
eBay
TPA3116D2 Subwoofer Amplifier Board DC 12-24V mono Digital Audio Amplifier Power Amplifier Board for Home Audio Car Speakers DIY
AliExpress
Used, good working condition Does not include remote Power cable included Free shipping
eBay
DLHiFi Two Ways Dual Channel Stereo RCA 1 In 2 Out Or 1 Out 2 In AV Audio Signal Source Select Switching Board + Cable
AliExpress
Toa Electronics BG-1120 Specs. Protection Circuitry for Overheat, Overload, and Short Circuit. 10.4 x 4.2 x 11" (264 x 107 x 280 mm). Power Consumption. Variable Speed Fan. Power, Peak, and Signal LEDs on Front Panel.
eBay