Check the listing for details. Crown Amp 135MA. Color: Black, Condition: Used. Listed at 35.00 USD. The Crown Amp 135MA is a professional power amplifier designed for audio professionals in the music industry. With stereo L/R RCA inputs and a power output of 35W, this unit offers three channels and inputs for flexible connectivity. The sleek black design and reliable Crown brand make it a popular choice for musicians and producers looking to enhance their sound systems. The Crown 135MA model is known for its durability and high-quality performance, making it a valuable addition to any setup. Used in applications like Paging and background music.