Amplifiers & Preamps
amplifiers & preamps — pre-owned
Browse 5,205 amplifiers & preamps — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

iFi Audio iPower 5V/2.5A DC Power Supply
Like New, Barely Used.

Kinergetics Research Chiro C-800 Dual-Zone Tuner Pre-Amp Processor - NO REMOTE!
The Kinergetics Research Chiro line (circa late 1990s) consists of high-end, audiophile-grade home theater components designed by Antonio De Marco and Marco Insinilla. The C-800 is a dual-zone preamplifier/tuner. Tested and good condition. Comes with power cords but no remote.

Empower Sound (Happy Amp) Amazing Amp SH-120D Wireless Voice Amplifier Rechargea
Amazing Amp (formerly Happie Amp) with Handheld Mic, power cord and internal battery. DC power adapter not included. * BT connection so you can use your phone or tablet wirelessly * Individual volume controls for each wireless channels * The ability to turn off each wireless channel when not in use to prevent interference. * Rechargeable 9V battery charger built in!

Shure MX1BP - Battery / Phantom Powered Preamp- Preowned
The preamplifier features a Mute switch and operates on 9V battery or phantom power. Shure MX1BP - Battery / Phantom Powered Preamp. Shure MX1BP. Model: MX1BP. Preowned, Tested, Works Great! Product Information.

(REFURBISHED) Ultra Compact Phono Turntable Preamp with 12 Volt AC Adapter
Most likely, you do. The majority of newer stereo receivers and speakers lack a phono input, which would directly connect them to the turntable. You'll need the preamp to connect to the phono output of the turntable and the line input of the receiver/speakers.

Fosi Audio Q4 Headphone Amplifier Stereo DAC 24-Bit 192 KHz USB for Speaker
You will receive the Q4 by itself, no any accessories included as you see in the photos.
You save $3.00

Sonos Original Power Cord Cable for Sonos 250W Amplifier Amp (Used)

Rolls RA170 70V Power Amplifier - Black
INCLUDES: Power Amplifier ONLY. Exact Shade of Black may Vary. This Policy explains what Personal Data we collect from you, why we collect and process your personal data, when and with whom your personal data is shared, and your rights with respect to your Personal Data.

Extron XPA 2001 Power Amplifier
USA sales only.

Pyle PCAU25A stereo amplifier with USB/SD 2x40W
Pyle Mini 2CH Amplifier with USB PCAU25A

Henry Engineering The Matchbox II Direct Coupled IHF-Pro Interface Amplifier
Salesbaron is in Los Angeles, 90039.

Used Behringer MiniAmp 4-CH Headphone Amp800 Tested Works Good Condition
Behringer MiniAmp Headphone. Model Amp800. 2 headphone outputs per channel accommodate a total of eight headphones. We want to make you happy, period! Give us a chance to make it right. We follow the golden rule:"In everything, do to others what you would have them do to you.".

YAMAHA DT-60 Natural Sound Audio Timer Super High Switched Power Cap 50/60hz
There are two switched outlets that can handle 700 Watts each (total 1400 Watts).

Extron XPA 2002‑70V Two‑Channel 200 W Power Amplifier 70V Rackmount Amp
Any other parts, accessories, power adapters, etc. are not included unless indicated below. We will be happy to resolve the issue and work out a solution with you. We cannot give you a price quote.
You save $5.00

Sansui AT-202 Audio Program Timer, 3 pwr outlets, silver, nice condition, works!
It powers up, shows the clock setting and is adjusted easily. The counter works as it should and the program mode is also available. It features auto on outlets as well as switched on or off outlets.

Sanskrit S.M.S.L Mini DAC 6th Anniversary Edition

AudioSource Model SS One/Series II Surround Sound Processor
Tested and works

Toshiba Stereo Power Amplifier Model SC-335 No Power
The condition of this item is not tested for functionality as we do not have the capability to test the device fully; The Unit has been inspected, and the results are as follows. Device has scratches and scuffs from normal use.

EXTRON AUDIO DISTRIBUTION AMPLIFIER IN 1U RACK SHELF FREE SHIP
The many pictures fully disclose it's condition. What you see is what you get. Signs of age and usage as pictured.

Pyle PDA7BU Power Digital Amplifier Bluetooth Stereo Receiver - Tested
Model : PDA7BU. Commodity : Power Digital Amplifier Bluetooth Stereo Receiver. Test : Tested. Power : Powers On. Power Cord : Yes. No exceptions will be made. Cancelation Requests WILL BE DENIED For Pick Up Requests.

KK8: Extron SW2 VGA DA2 A Stereo Audio Video Switcher Distribution Amplifier
If it is not pictured that it is not included.
You save $29.99

Keiid KD-240BT Powered Digital Receiver And Amplifier 2 Channel BT Audio TESTED
TESTED WITH SPEAKER I HAD BLUETOOTH TO MAY PHONE SOUNDS GOOD COMES WITH POWER CORD...PLEASE SEE ALL PICS BEFORE BUYING THANKS FOR LOOKING........The Keiid KD-240BT Powered Digital Receiver and Amplifier is a versatile 2 channel Bluetooth audio device perfect for enhancing your home audio setup. With a sleek black design and advanced features, this digital amplifier offers AM support, a digital tuner, stereo L/R RCA audio outputs, and compatibility with various inputs including AUX, stereo RCA, and HDMI. The KD-240BT from Keiid is a top choice for those looking to boost their audio experience with a reliable and modern receiver combo.

TEAC VU meters left, right Dolby marked
Listed are a pair of TEAC VU meters. Both came out of a TEAC tape deck years ago. They have been stored away since then. Both are in working condition and used physical condition with some marks on the front. Both have the Dolby insignia on them as the tape deck had Dolby a setting.

Unication Unimax Amplifier Base With Cord
The item was tested and worked well. The item has some marks and signs of wear. See pictures to see the item.
You save $7.98

Used Henry Engineering The Matchbox II Direct Coupled Interface Amplifier
Just Pulled Out From a Radio Station That Was Bought Out. We want to make you happy, period! Give us a chance to make it right. We follow the golden rule:"In everything, do to others what you would have them do to you.".

Extron MPA 601 Mini Power Amplifier *** Used Excellent ***
Known for its reliability and efficiency, it is ideal for conference rooms, classrooms, paging systems, and background music installations. Model: Extron MPA 601. Extron MPA 601 Amplifier. The MPA 601 features bothbalanced and unbalanced inputs, allowing flexible integration into a wide range of AV systems.
You save $9.99

Shelf 17: Lot of 2 Plantronics M22 Headset Amplifier
If it is not pictured that it is not included. What you will receive.
You save $29.99

PYLE Pca2 Mini 2x40W Stereo Amplifier No Remote
PYLE Pca2 Mini 2x40W Stereo Amplifier No Remote. Condition is Used. Shipped with USPS Ground Advantage.

Extron MPA 401 70v Mini Power Amplifier + Extron 28-113-07LF Power Supply Bundle

Fosi Audio BL20A Bluetooth Mini Amplifier with pre-amp Output and Remote Control
YOU WILL RECEIVE EXACTLY WHAT YOU SEE IN THE PHOTOS.

Sonos original Banana Plug Binding Post(Each) for Sonos 250W Amplifier Amp(Used)
Shows minor signs of wear and scratch.

Extron MPA 152 Plus Mini Power Amplifier with 28-284-07LF Power Supply
The Extron MPA 152 Plus Mini Power Amplifier with 28-284-07LF Power Supply is a compact gray power amplifier designed for enhancing audio quality in home audio systems. As a product from the reputable brand Extron, it offers reliable performance and professional-grade sound reproduction. With its model number MPA 15, this amplifier is perfect for connecting to various audio sources and providing powerful amplification for an immersive listening experience. Ideal for those looking to upgrade their audio setup with a high-quality amplifier that delivers clear and dynamic sound. has a couple of cords with it, comes as pictured. 900-164

Crestron AMP-1200-70 Single Channel Power Amplifier 6507816
INCLUDES: Amplifier w/ Power Cable Only. Missing Rack Ear Brackets. This Policy explains what Personal Data we collect from you, why we collect and process your personal data, when and with whom your personal data is shared, and your rights with respect to your Personal Data.

Pyle PDA6BU 200W Amplifier Stereo Home Theater Bluetooth AM/FM USB Receiver
It features a sleek black design with banana speaker jacks for audio output and AUX and USB audio inputs.

SONY TA-SA200WR Wireless Surround Amplifier without Transceiver Card, Remote Inc
The SONY TA-SA200WR Wireless Surround Amplifier is a powerful 2 channel amplifier that delivers 50W of power, making it suitable for enhancing your home audio experience. With digital features and a sleek black design, this amplifier is perfect for creating a surround sound system without the need for a transceiver card or separate remote control. The included remote allows you to easily adjust settings and control your audio output, while the audio outputs include stereo RCA and raw cable speaker jacks for flexibility in connecting various devices. Made in China, this Sony amplifier is a reliable choice for home audio setup.

Polk Audio PSW-250 Plate Amplifier.
Tested and works well, see photos and ask all questions before placing a bid . It will be packaged right for a safe arrival.

SMSL SA-50 Hi-Fi Stereo Amplifier Silver
Excellent condition tested no defects.

Vintage Technics Model SE-CH515A Stereo Amplifier Tested
Tested.No power cable included.I sell what you see. Please look carefully at all the pictures. I tried to give full information about the condition and quality of the product. If you have even the slightest doubt, please do not buy! This will save us a lot of time and energy.

Ada Audio Design Associates Model ACC-48 Quad AC
In working condition.

Tripp Lite HDMI Over Cat5 Extender B126-1A1 local unit with power adapter
Receiver Required: Requires a compatible Tripp Lite receiver (B126-1A1, B126-1P0, etc.). ThisTripp Lite B126-001 (Local Unit) is a high-performance HDMI over Cat5/Cat6 transmitter designed to send high-definition audio and video signals to a remote receiver up to 175 feet away.