{"product_id":"tonewinner-ad-1pa-stereo-class-a-power-amplifier-black","title":"Tonewinner AD-1PA+ Stereo Class A Power Amplifier Black","description":"\u003cp\u003eTonewinner AD-1PA+ Stereo Class A Power Amplifier Black\u003c\/p\u003e\n\u003cp\u003eIntroducing the AD-1PA+, Tonewinner's Class A stereo power amplifier. With optimised circuits, this hi-fi power amp is the successor to the Tonewinner AD-1PA.\u003c\/p\u003e\n\u003cp\u003eThe Tonewinner AD-1PA+ benefits from a high-quality construction and balanced architecture, allowing it to provide significant yet controlled power to demanding speakers and ensuring a dynamic, precise sound reproduction. Its careful and intelligent integration results in a powerful and musical device, respecting the audio signal to reveal every nuance in your music.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e• 2 x 100W Class A pure power output\u003cbr\u003e• 2 x 300W Class AB power output\u003cbr\u003e• Switch between Class A, Class AB or Auto operating modes\u003cbr\u003e• Dual speaker terminals allow bi-wiring or A\/B\/A+B configurations\u003cbr\u003e• Balanced XLR and unbalanced RCA inputs\u003cbr\u003e• Improved Signal to Noise Ratio (SNR) \u0026amp;gt;100dB\u003cbr\u003e• Audiophile-grade high-performance toroidal transformer\u003cbr\u003e• Large filter capacitors ensure clean and stable signal\u003cbr\u003e• Short circuit protection, overheating protection, and DC protection\u003cbr\u003e• 24K gold-plated terminals\u003cbr\u003e• Aluminium chassis \u0026amp; shockproof feet\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePure Class A Amplification\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith both Class A and Class AB circuits, the AD-1PA+ supplies high-power amplification to any speaker load, made possible by the audiophile-grade toroidal transformer. The Class A circuit adopts a fully balanced, symmetrical, differential input to differential BTL power output.\u003c\/p\u003e\n\u003cp\u003eEnsuring that only the best quality signal is passed through the amplifier, each channel features 24K gold-plated unbalanced (RCA) inputs along with a pair of heavy-duty speaker outputs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Performance Toroidal Transformer\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo achieve its impressive power levels in both Class AB and Class A modes, the Tonewinner AD-1PA+ is equipped with a large power supply, including a high-performance toroidal transformer of no less than 1200W. 16 large filter capacitors with a total capacity of 180,000µF ensure a clean and stable electrical signal. In addition, the left and right channels are independently power supplied.\u003c\/p\u003e\n\u003cp\u003eThe AD-1PA+ features a low-noise differential amplifier circuit for improved signal-to-noise ratio. The amplifier stage of the AD-1PA+ embeds 8 pairs of high-power transistors TTC5200 and TTA1943. These allow the amplifier to deliver a consequent power of 300W RMS (Class AB operation) per channel under 8Ω.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePowerfully Versatile\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Tonewinner AD-1PA+ has three operating modes: Class A, Class AB or Auto. A switch allows you to select the most suitable mode according to your needs and your installation. The Auto mode automatically switches from Class A to Class AB when the temperature of the unit reaches a certain limit and switches back to Class A once the unit's temperature drops.\u003c\/p\u003e\n\u003cp\u003eWith its dual speaker terminals, the Tonewinner AD-1PA+ offers the possibility of bi-wiring. This method of connecting to speakers can offer an improvement in sound quality by reducing the magnetic interactions of the cables. Alternatively, take advantage of the speaker A\/B configurations and connect a second pair of speakers for easy referencing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerfect Isolation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe AD-1PA+ has been designed and constructed to physically separate the different sections of the device and thus ensure isolation from unwanted interference and noise. Both left and right channels adopt a independent power supply, which boosts the channel separation to the highest degree.\u003c\/p\u003e\n\u003cp\u003eBuilt with an aluminium chassis and supported by a rigorous internal layout and shockproof feet, the AD-1PA+ is a resilient and powerful stereo power amplifier that will handle anything you throw at it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTonewinner\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTonewinner was one of the first manufacturers in China to obtain official certifications for advanced HDMI technologies such as Dolby Atmos, Dolby Digital, Dolby TrueHD, DTS:X, DTS Master to name just a few!\u003c\/p\u003e\n\u003cp\u003eThe unabashedly Chinese brand is showing that premium components don't need to cost an arm and a leg! Tonewinner aims to bring premium high end audio at prices which won't make your wallet wince. These high end audio components are not only designed for a premium audio experience but also for grunt! Packing not only superior audio and the latest technology, but plenty of 'oomph' too!\u003c\/p\u003e\n\u003cp\u003eFeaturing Tonewinner's patented power management technology, the AD-1PA+ is Tonewinner's best hi-fi power amp for delivering pure amplification to high-end speakers.\u003c\/p\u003e\n\u003cp\u003eModel\u003cbr\u003eAD-1PRE+\u003c\/p\u003e\n\u003cp\u003eAnalogue Inputs\u003cbr\u003e2x Unbalanced RCA Stereo\u003cbr\u003e1x Balanced XLR Stereo\u003cbr\u003e1x Phono MM\u003cbr\u003e1x Phono MC\u003c\/p\u003e\n\u003cp\u003eDigital Inputs\u003cbr\u003e2x Optical\u003cbr\u003e2x Coaxial\u003cbr\u003e1x USB\u003c\/p\u003e\n\u003cp\u003eOutputs\u003cbr\u003e2x Unbalanced RCA Stereo\u003cbr\u003e1x Balanced XLR Stereo\u003c\/p\u003e\n\u003cp\u003eTHD\u003cbr\u003e≤0.0035%(1kHz)\u003c\/p\u003e\n\u003cp\u003eChannels\u003cbr\u003e2\u003c\/p\u003e\n\u003cp\u003eDAC\u003cbr\u003eESS9038\u003c\/p\u003e\n\u003cp\u003eCrosstalk\u003cbr\u003e≥102dB(1kHz)\u003c\/p\u003e\n\u003cp\u003eSNR\u003cbr\u003e≥110dB (A-weighted)\u003c\/p\u003e\n\u003cp\u003eFrequency range\u003cbr\u003e10Hz - 180kHz (+1\/-3dB)\u003c\/p\u003e\n\u003cp\u003eSupported Formats\u003cbr\u003ePC: DSD64-DSD512.DOP64, DOP128, DOP256\u003cbr\u003eCoaxial\/Optical: PCM44.1-192, DOP64\u003c\/p\u003e\n\u003cp\u003eCrosstalk\u003cbr\u003e≥102dB(1kHz）\u003c\/p\u003e\n\u003cp\u003eStandby consumption\u003cbr\u003e≤1W\u003c\/p\u003e\n\u003cp\u003eMaterial\u003cbr\u003eAluminium alloy\u003c\/p\u003e\n\u003cp\u003eDimensions W x H x D\u003cbr\u003e444 x 120 x 413 mm\u003c\/p\u003e\n\u003cp\u003eWeight\u003cbr\u003e9.7kg\u003c\/p\u003e\n\u003cp\u003eModel\u003cbr\u003eAD-1PA+\u003c\/p\u003e\n\u003cp\u003eChannels\u003cbr\u003eStereo (2)\u003c\/p\u003e\n\u003cp\u003eOutput power (Class A)\u003cbr\u003e100W @ 8Ω\u003c\/p\u003e\n\u003cp\u003eOutput power (Class AB)\u003cbr\u003e300W RMS\/channel @ 8Ω, 20Hz-20kHz, THD \u0026amp;lt; 0.1%, two driven channels\u003cbr\u003e500W RMS\/channel @ 4Ω, 20Hz-20kHz, THD \u0026amp;lt; 0.1%, one driven channel\u003cbr\u003e320W RMS\/channel @ 8Ω, THD \u0026amp;lt; 0.1%, one driven channel\u003c\/p\u003e\n\u003cp\u003eBias selection\u003cbr\u003eClass A\u003cbr\u003eClass AB\u003cbr\u003eAuto\u003c\/p\u003e\n\u003cp\u003eTHD\u003cbr\u003e≤0.008% (1kHz, normal working condition)\u003c\/p\u003e\n\u003cp\u003eSNR\u003cbr\u003e≥108dB (A-weighted, balanced input)\u003cbr\u003e≥110dB (A-weighted, unbalanced input)\u003c\/p\u003e\n\u003cp\u003eFrequency\u003cbr\u003e10Hz-100kHz(+1\/-3dB)\u003c\/p\u003e\n\u003cp\u003eImpedance\u003cbr\u003e8 ohms\u003c\/p\u003e\n\u003cp\u003eGain\u003cbr\u003e29.5dB±1dB\u003c\/p\u003e\n\u003cp\u003eChannel separation\u003cbr\u003e≥80dB\u003c\/p\u003e\n\u003cp\u003eInputs\u003cbr\u003eSingle-ended stereo RCA\u003cbr\u003eBalanced stereo XLR\u003c\/p\u003e\n\u003cp\u003eSpeaker output modes\u003cbr\u003eA\u003cbr\u003eB\u003cbr\u003eA+B\u003c\/p\u003e\n\u003cp\u003eTrigger\u003cbr\u003eInput and output\u003c\/p\u003e\n\u003cp\u003ePower consumption\u003cbr\u003eClass A 260-300W or Class AB 70W-110W\u003c\/p\u003e\n\u003cp\u003eStandby power consumption\u003cbr\u003e≤ 0.5W\u003c\/p\u003e\n\u003cp\u003eDimensions W × H × D\u003cbr\u003e444 x 294 x 449 mm\u003c\/p\u003e\n\u003cp\u003eNet weight\u003cbr\u003e42kg\u003c\/p\u003e\n\u003cp\u003eIncludes: 1 x Stereo Power Amplifier\u003c\/p\u003e","brand":"TONEWINNER","offers":[{"title":"Selby Acoustics","offer_id":40427583111369,"sku":"10055110","price":5299.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0024\/9803\/5810\/files\/3f3545b6753d4139b5c93e560d661849.jpg?v=1772781378","url":"https:\/\/www.jbhifi.com.au\/products\/tonewinner-ad-1pa-stereo-class-a-power-amplifier-black","provider":"JB Hi-Fi","version":"1.0","type":"link"}