{"product_id":"topping-a30pro-balanced-headphone-amplifier-demo-unit","title":"Topping A30Pro Balanced Headphone Amplifier [DEMO UNIT]","description":"\u003cdiv\u003e\u003cspan style=\"color: #cc0000;\"\u003e\u003cb\u003eDEMO UNIT\u003cbr\u003e\u003cbr\u003eThis product has been tested and assessed by our team, and is sold in working and resellable condition.\u003c\/b\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #cc0000;\"\u003eThis product may feature minor physical blemishes, and may therefore not be in pristine physical condition. If there is any\u003cspan\u003e \u003c\/span\u003e\u003ci\u003enotable\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003eblemish present however, we will provide additional information below this disclaimer, accompanied with photos above which highlight the notable imperfections listed.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #cc0000;\"\u003eWe cannot provide any further photos of the unit's current physical condition beyond those available in this listing.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #cc0000;\"\u003e\u003ci\u003e*If applicable*\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003e- This product has been tested to ensure that the device functions, and the battery discharges properly. Unfortunately we cannot provide any exact charging or battery life information.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #cc0000;\"\u003eIf this product is missing any factory accessories, the missing accessories will be listed under this disclaimer.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #cc0000;\"\u003eThis product is strictly available for online purchase only, and cannot be viewed, purchased or collected in store.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #cc0000;\"\u003eThis product comes with full warranty as per the Warranty section on this listing unless otherwise specified. If there is no warranty period outlined in the Warranty section below, please\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"mailto:info@addictedtoaudio.com.au\" rel=\"noreferrer\" target=\"_blank\"\u003eget in touch with our Customer Care team\u003c\/a\u003e\u003cspan style=\"color: #cc0000;\"\u003e for more information.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eNFCA Headphone Amplifier\u003c\/strong\u003e\u003cbr\u003eThe Topping A30Pro is a satisfactory mid-range headphone amplifier with top specification, better sound, and a refined build.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAPX555B limited our measurement again\u003c\/strong\u003e\u003cbr\u003eThe THD+N of A30Pro is no higher than 0.00006%, which means the A30Pro accurately restores 99.99994% of the original sound, what you get is what you input. The noise from the A30Pro is low enough, so APX555B limits the noise measurement of it, resulting in the need to amplify the noise of A30Pro by 100 times for indirect measurement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePushing the envelope\u003cbr\u003e\u003c\/strong\u003eA30Pro uses the new specifically redesigned NFCA based circuit is optimized for terrific single ended performance. Massive paralleled high performance audio opamp architecture along with UHGF (Ultra High Gain Feedback) technology provides excellent DC and AC performance. High output current drive capability allows the amp driving low impedance headphones with ease. Ultra-low noise of 0.3uV is miles ahead of the competition, giving an absurdly high dynamic range of 145dB and no audible noise and darkest background for the most sensitive IEMs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncredible output power\u003cbr\u003e\u003c\/strong\u003eThe new specifically redesigned NFCA based circuit is optimised for terrific single ended performance. Huge output power and margin bring excellent control ability, and there are no more headphones hard to drive.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e4-PIN-XLR + 4.4mm + 6.35mm Output\u003cbr\u003e\u003c\/strong\u003eSince then, buying headphones does not have to consider whether the plug matches the headphone amplifier, because the A30Pro already provides you all in a compact body, including 4-PIN-XLR, 4.4mm, 6.35mm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdapt to various sensitivities\u003cbr\u003e\u003c\/strong\u003eA30Pro provides 3 step gain settings, which can easily adapt to the huge sensitivity span from IEMs to high impedance and full size over-ears. Just connect the earphones and leave the rest to the A30Pro.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSE + BAL input pass through\u003cbr\u003e\u003c\/strong\u003eWhen shutting down, the input signal is directly output to RCA or TRS without amplification, which will be more suitable for active speakers\/monitor speakers when the DAC has pre-amplifier functions. Even better is when used with D30Pro, the excellent noise performance of D30Pro is not wasted.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSay good bye to the ground loops noise \u003c\/strong\u003e\u003cbr\u003eWhen multiple equipment are used, RCA connection may encounter ground loop noise. A30Pro introduces a GND\/LIFT switch as the solution. When in normal use, set it to GND; when encountering ground loop noise, switch to LIFT to change the ground point of the A30Pro from the it's chassis to other equipment which it is connected to. Ground loop noise will disappear.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuiescent current\u003cbr\u003e\u003c\/strong\u003eA30Pro is designed with ample quiescent current. It will fully work in Class A operation when the headphone impedance is greater than 250 Ohms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eD30Pro is the best DAC for A30Pro\u003c\/strong\u003e\u003cbr\u003e4 x CS43198, sound of quad DAC. THD+N\u0026lt;0.00009%, extremely low jitter for all inputs.\u003c\/p\u003e","brand":"TOPPING","offers":[{"title":"Silver","offer_id":44017036492934,"sku":"TOP.A30PRO.SL.DEMO.11065","price":249.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0875\/3864\/products\/A30ProSilver05.jpg?v=1764802506","url":"https:\/\/addictedtoaudio.com.au\/products\/topping-a30pro-balanced-headphone-amplifier-demo-unit","provider":"Addicted To Audio","version":"1.0","type":"link"}