RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
Optimus Prime's Stereo Equipment Old School Audio - Old School Prices - Professionally Tested Product Description Up for sale is a Sony STR-DE835 5.1 channel A/V receiver, fully tested and confirmed working. All channels output clean audio, the AM/FM tuner locks onto stations properly, and Dolby Digital and DTS decoding functions have been verified. Unit is in good cosmetic condition with minor wear consistent with normal use. Remote not included. Please review all photos for details. Highlights At A Glance ✔ Fully tested and verified ✔ Good cosmetic condition with minor wear from use ✔ Free 30-day returns ✔ Fast, insured shipping Testing & Verification All five amplifier channels were tested for clean output with no distortion, hum, or drop-outs. Every input — including analog RCA, digital coaxial, and digital optical — was cycled through and confirmed functional, and the AM/FM tuner was verified to tune and receive stations properly. Balance, tone controls, and the headphone output were all checked, and Dolby Digital and DTS surround decoding were confirmed operational. Shipping & Returns Fast, insured shipping from Minnesota. Free 30-day returns. Item is carefully packaged for safe delivery.
This Sony 5.1 channel home theater unit at US$100 is a strong deal, sitting below the 25th percentile of US$80 in your database of 15 recent comparable listings where the median is US$110. You are paying less than the lowest quarter of asking prices, making this an immediate buying opportunity for a budget-conscious enthusiast.
Sony’s 5.1 receivers are well-regarded for their reliable DSP processing, solid AM/FM tuners, and straightforward setup that delivers clear surround sound without fuss. At US$100, the upside is significant: you get a proven, well-loved platform that handles DVD and early Blu-ray sources cleanly, and if it’s from an original owner, you likely avoid the wear of previous heavy use. Unless the listing explicitly notes missing remotes, damaged connectors, or a cracked faceplate, this price justifies taking a chance even with unknown condition.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Sony emerged from the ruins of post-World War II Japan, founded on May 7, 1946, by Masaru Ibuka and Akio Morita as Tokyo Tsushin Kogyo K.K. in Tokyo's Nihonbashi district. Starting with radio repairs and Japan's first magnetic tape recorder, the duo secured transistor licensing from Bell Labs, pioneering the TR-55 transistor radio in 1955. Renamed Sony Corporation in 1958—from the Latin "sonus" for sound—the brand symbolized Japan's ascent from cheap imitations to innovative leadership, fueled by Ibuka's engineering prowess and Morita's global marketing vision.
Sony's hi-fi legacy spans headphones, amplifiers, speakers, turntables, and DACs, alongside landmark formats like the Compact Disc in 1982 and Blu-ray. Iconic products include the Walkman for portable audio revolution and Trinitron televisions, blending consumer accessibility with cutting-edge tech. Today, offerings like the Signature Series headphones and ES amplifiers target discerning listeners seeking refined soundstaging and dynamic range.
Positioned as a mid-to-high-end powerhouse, Sony commands respect among knowledgeable buyers for blending mass-market reliability with premium performance, outpacing many pure audiophile brands in innovation and value. Far from vintage relic or niche boutique, it dominates with forward-thinking engineering, holding strong market share in headphones and streaming ecosystems.
See all Sony listings on RADAR.
