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Dynaco PAT-4 Vintage Solid-State Stereo Preamplifier – Control CenterThe Dynaco PAT-4 is a vintage solid-state stereo preamplifier and audio control center introduced in the late 1960s. Designed to pair with separate power amplifiers, it offers multiple input options, phono amplification, tape connections, and dual preamplifier outputs for a versatile stereo system.Features & SpecificationsAll-silicon solid-state stereo preamplifierFrequency response: 10Hz–100kHzTotal harmonic distortion: 0.05%Phono/MM gain: 54dBLine gain: 20dBSignal-to-noise ratio:Phono/MM: 70dBLine: 85dBMultiple auxiliary, phono, and tape-head inputsDual preamplifier outputsFront-panel headphone/parallel jackDesigned for use with separate stereo power amplifiersConditionPre-owned unit with signs of cosmetic wear from previous use. Fully operational and functions as intended.What's IncludedDynaco PAT-4 Stereo PreamplifierA classic vintage stereo control center for hi-fi enthusiasts and collectors of Dynaco audio equipment.At Tone House, we're not just sellers, we're passionate musicians, gear aficionados, and seasoned professionals dedicated to the craft of making music. We take pride in our curated music collection. We love giving these vintage and rare pieces new life through maintenance and upkeep. Our goal is for these units to be at their optimal performance before going to their new homes. Every item you acquire from us undergoes a meticulous inspection process conducted by our team of enthusiasts, studio engineers, and live performers. With full-time technicians on staff, rest assured that each piece is thoroughly examined and tested before being professionally packed.All orders placed by 2 pm are processed the same day. This ensures that your gear is swiftly prepared for shipment, guaranteeing prompt delivery in the condition promised. Once your order is in transit, automatic tracking information is provided, allowing you to monitor its journey from our shop to your doorstep with ease.The units/items you see in our pictures are precisely what you'll receive. Have questions? Feel free to ask before making a purchase. Additionally, we offer custom modifications, within reason, to many of the guitars and products we sell, ensuring they perfectly suit your unique requirements.Our dedication to your satisfaction doesn't end with the purchase. We value your feedback and strive for excellence in every transaction. If, for any reason, you're not completely satisfied, please reach out to us before leaving feedback. Your happiness is our priority, and we're here to ensure your musical journey is nothing short of exceptional.*BUY WITH CONFIDENCE*Please note that additional shipping charges may apply to buyers in Hawaii, Alaska, Puerto Rico, and the Virgin Islands. Feel free to contact us for shipping rates before making your purchase.For Returns: Your satisfaction is our priority. If for any reason you're not completely satisfied with your purchase, please don't hesitate to reach out to us via message. We're here to address any concerns and ensure you have a positive experience with Tone House.RMW
US$200 is a fair price, sitting just below the US$212 median and comfortably within the typical US$184–US$250 range for recent comparable listings. It is not a bargain on price alone, but neither is it ambitious; a clean, tested example would be sensibly bought here.
The PAT-4 is a well-regarded early solid-state preamplifier with a straightforward, service-friendly design, useful phono, tape-monitor, filter, and headphone provisions. Its simple architecture and ongoing parts and upgrade support make it an appealing vintage control center, especially alongside Dynaco amplification. Because these units are roughly half a century old, confirm both channels, quiet controls and switches, and whether capacitors or other restoration work have been documented; at US$200, working condition and provenance meaningfully determine the value.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Dynaco emerged in 1955 from Philadelphia, Pennsylvania, when hi-fi pioneer David Hafler partnered with engineer Ed Laurent to form the Dyna Company. Hafler brought expertise from his earlier Acrosound venture, which produced high-quality output transformers starting in 1950. The duo targeted the burgeoning hi-fi market with affordable, DIY-friendly kits, launching the Mk II 50-watt tube amplifier shortly after incorporation and relocating to a former chocolate factory for expanded operations.
The brand specialized in tube amplifiers that defined its legacy, including the iconic Stereo 70—over 350,000 units sold—alongside models like the Mk III. Dynaco expanded into FM tuners such as the FM-1, bookshelf speakers like the A-25, solid-state amps, and innovative systems like the Dynaquad for simulated four-channel sound. Late-1970s efforts included the Phase III speakers, though the company shifted toward kits and components emphasizing value and performance.
Dynaco holds a revered position as the era's top-selling tube amp maker, beloved by budget-conscious audiophiles for reliable, high-value hi-fi. Liquidated in 1980 after Hafler's sale to a toy firm, its vintage gear remains a collector's staple, with later revivals by Panor Corporation producing replicas for tube enthusiasts seeking that classic warmth and build-it-yourself appeal.
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