Uploaded July 2026 | Updated September 2026, 1 week ago

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#AmpDyno #Amplifier #Bass
Aiyima A20 Mono Amplifier TPA3255

See Previous Related Videos
Aiyima A80 Amplifier/DAC: youtu.be/zsGOs2H-HVQ
Dayton Audio CS1200 Subwoofer: youtu.be/0oXPyAP0p_4
Fosi Audio V3 Mono Amp: youtu.be/2x5v00XYJ6k
More Power Out than In? youtu.be/c7QELbpKMuI
Mini Home Amplifiers Playlist: youtube.com/playlist?list=PLu98-M_EowHOB4Wq_Mzi-FtOUpJxQQnDf

SHOP
Aiyima A20 Mono Amplifier: amzn.to/4vZtO1N
Aiyima D20 PreAmp/DAC: amzn.to/4z2pdia
Dayton Audio CS1200 12" Powered Subwoofer: amzn.to/4biBt3I
Elac Bookshelf Speakers: amzn.to/4yLEsMf
My Favorite Budget Speaker Banana Plugs: amzn.to/44TJbOh
(used) Marantz MA500 Amplifier: ebay.us/dRqaNc

VIDEO CHAPTERS
0:00 Intro
0:37 Unboxing the A20 Mono
0:56 Marantz MA500
2:10 Features and Specs
5:00 Input Issue?
6:24 Sound Demos
7:44 Amp Dyno Tests
10:55 What's Inside?
12:15 PROS and CONS
13:05 Thoughts
13:26 Using Powered Subwoofer
14:15 EXTRA Tests

SHOP Affiliates:
Down4Sound - Shop4Bass.com
SAVARD Speakers: Shop4Boom.com (use WAL7 for 7% off)
WCCarAudio - https://is.gd/wccwal
Amazon - amzn.to/3wNX6Fn
Crutchfield - howl.me/cjZI33auToW

Get your WAL/OSS Merch: bigdwiz.creator-spring.com
Buy Me a Coffee/Tea/Slap-a-D-No : oldschoolstereo.com/p/donate.html

➡️ Support OSS / Williston Audio Labs for early access to videos: patreon.com/OldSchoolStereo
One Time "Tip" for Video Support: paypal.me/BigDWiz

VIDEO AND AUDIO GEAR
Camera - iPhone 17pro 1TB - amzn.to/4cNDeWo
RODE Wireless Go III Microphones: amzn.to/49ff46b
Shure MV7+ Microphone: amzn.to/426XGwO
Zoom H45 Audio Recorder: amzn.to/4tKUzH2
960 LED Panel: hamzn.to/4cYtmcM

TEST BENCH EQUIPMENT
SMD / D'Amore Engineering Amp Dyno (AD-1): https://is.gd/wccad1
XS Power D1400 Batteries - amzn.to/4eqkY8h
Taramps Smart Charger 100/130A - amzn.to/4t9vYuj
Fluke 1000A AC/DC Clamp Meter: amzn.to/4dfbZpg
Handheld Dyno AMM-1: amzn.to/4n4ktTp
My Favorite Precision Screwdriver Kit: amzn.to/42DrIIz

DISCLAIMER: This video and description contains affiliate links, which means that if you purchase from one of the product links, I may receive a small commission. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, I may be compensated if you make a purchase