{"product_id":"primaluna-prologue-premium-mono-tube-monoblock-power-amplifiers","title":"PrimaLuna ProLogue Premium Mono Tube Monoblock Power Amplifiers","description":"The PrimaLuna ProLogue Premium Mono tube power amplifier delivers 70 watts into 8 ohms across a quad of EL34 or KT88 output tubes. Serving as an authoritative anchor for high-performance audio systems, this monoblock provides immense dynamic headroom and holographic soundstaging. Its signature Adaptive AutoBias circuit monitors and adjusts bias in real time, curbing distortion while eliminating manual calibration. A chassis switch enables instant tube rolling between EL34 and KT88 profiles, supported by Bad Tube Indicator LEDs that flag faulty valves. Handcrafted point-to-point wiring pairs with custom wideband transformers to drive two, four, and eight ohm speaker loads.\n\nCritical consensus highlights its extraordinary fidelity, earning Stereophile Class A Recommended Component status after Herb Reichert commended its captivating purity and deep bass authority. Reviewers at The Absolute Sound praised its fluid musicality and dynamic scale, noting that its performance rivals far costlier designs. Coverage from Enjoy the Music lauded its lively drive and fuss-free operation, cementing its reputation as a benchmark tube amplifier.\n\nWelcoming this monoblock into your setup pairs classic valve bloom with uncompromising reliability. By combining automated bias circuitry with bespoke transformer engineering, it removes the hassle of tube maintenance so recordings breathe with lifelike presence. For the discerning enthusiast, it represents an enduring foundation for deep musical immersion.","brand":"PrimaLuna","offers":[{"title":"Default Title","offer_id":67952961487129,"sku":"101343","price":2499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0844\/4225\/1545\/files\/101343-6.jpg?v=1793122783","url":"https:\/\/tmraudio.com\/products\/primaluna-prologue-premium-mono-tube-monoblock-power-amplifiers","provider":"The Music Room","version":"1.0","type":"link"}