{"product_id":"demo-nuprime-amg-sta","title":"*DEMO* NuPrime AMG STA","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eDemoex av 1st NuPrime AMG STA i fint skick!\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eSäljes med 1-års garanti.\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAMG STA är en ordentligt uppgraderad STA-9, vi rör oss i 10-seriens prestanda men med lite annan grepp om återgivningen och fler valmöjligheter då STA går att köra både i stereo och mono.\u003c\/p\u003e\n\u003cp\u003eThe AMG STA comprises of several state-of-the-art innovations in power amp design. Its class-leading features include 1M Ohm input impedance, high instantaneous current for power delivery, 700kHz switching frequency, and Single-Ended Non-Negative Class A module coupled with Double Feedback Class D module for 300W mono amp power.\u003c\/p\u003e\n\u003cdiv id=\"row-112266556\"\u003e\n\u003cdiv id=\"col-98036270\"\u003e\n\u003cdiv\u003e\n\u003cdiv id=\"row-895885285\"\u003e\n\u003cdiv id=\"col-1449704872\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe AMG series front panel embodies its spirit. It is milled from a 15mm harden aerospace aluminum alloy using a four-axis CNC machine with a diamond cutter through a 48 steps process. Design elements such as the 3D “floating” logo, the curved surface around the front panel switch, and diamond-cut edge bring the quality of ultra-high-end audio products to the affordable range of the AMG series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"row-720164068\"\u003e\n\u003cdiv id=\"col-492165916\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eTechnology\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"row-621534184\"\u003e\n\u003cdiv id=\"col-2900207\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eAMG STA PCB integrates ground wire shielding to isolate external interference. The 300 Mhz bandwidth JFET provides ultra-high input impedance and wide-band fast response. The dynamics of the design and the single-ended Class A circuit enriches the natural second harmonic.\u003c\/p\u003e\n\u003cp\u003eThis design allows the most delicate details in the audio signal to carry through the chain. The level of transparency in sound reproduction is genuinely astonishing in this class of equipment, with a deft in creating a highly detailed sonic imagery.\u003c\/p\u003e\n\u003cp\u003eThe AMG-STA uses the “Single-Ended, Non-Negative Feedback” Class-A module partners with a new “Double feedback” Class D circuitry. The Class D oscillating frequency has increased to 700kHz, which is 1.4 times that of the STA-9.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"row-125226166\"\u003e\n\u003cdiv id=\"col-1911934853\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003ePower Circuit\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"row-694087179\"\u003e\n\u003cdiv id=\"col-387697934\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe power supply uses a 380W special winding power transformer, which has 30% more peak power output of a similar volume transformer.\u003c\/p\u003e\n\u003cp\u003eThe AC power input from the Inlet Connector to the power transformer utilizes a high current welding line to provide maximum power transmission.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"row-1986177756\"\u003e\n\u003cdiv id=\"col-205541940\"\u003eHow did AMG STA mono achieve better sonic characteristic, in addition to more power than AMG STA stereo ?\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"row-203744072\"\u003e\n\u003cdiv id=\"col-1509430676\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe standard method for bridging a stereo amp into mono employs a series of op amps (OPA) in order to invert the input signals to one of the stereo amp, thereby creating an opposite phase, which can then be combined to increase power. Conversely, the AMG STA’s innovative bridging circuit utilises a design we call Single-Ended Direct-Inject Bridge Technology, in which the mono mode, in addition to acquiring more than double the power, sounds livelier and more dynamic.\u003c\/p\u003e\n\u003ch3\u003eListening Impression\u003c\/h3\u003e\n\u003cp\u003eWith improvements to every area, the bar has been raised for what is achievable with audio performance in small form factor.\u003c\/p\u003e\n\u003cp\u003eThe AMG STA has a flavor of its own, so it is hard to compare it with the Evolution One, which derives some of its design from or the similarly priced ST-10. AMG STA sounded smooth and relaxing. Detail, resolution, dynamics, and speed are in the ST-10 ballpark, yet the sound is quite different.\u003c\/p\u003e\n\u003cp\u003eDrawing comparison with the Evolution One, they shared a trait of ease in reproducing the details of the recording comes afore. However, AMG STA does things differently. While the Evolution One has that inviting warmth, the AMG STA wants to allure the listener. Hence, instead of glitz and glamor, which pulls you in quickly into the performance, the AMG STA has a demeanor that slowly brings you into the music.\u003c\/p\u003e\n\u003cp\u003eTonal qualities of the AMG STA leans toward being full and rich, so instruments and vocals seem to gain extra body, weight, and harmonic richness. It may not be the most accurate reproduction but does make Jazz and Vocal pieces highly addictive. It may take away the raw edge of Rock and Electronic music and sounds less exciting for some.\u003c\/p\u003e\n\u003cp\u003eThe sound stage has an attractive characteristic. A linear presentation is like having floodlights shining on all the performers such that everyone can be seen equally well. The AMG STA, however, has more of a spotlighting effect, where performers are focused on getting your attention.\u003c\/p\u003e\n\u003cp\u003eIt is tough to put the sound of the AMG STA into measurable attributes as the presentation is quite different from the other series. You’ll need to try it and hear for yourself.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003eChristiaan Punter, HFA (hifi-advice.com)\u003cbr\u003e\u003cem\u003eThe AMG-PRA + AMG-STA form a beautiful combo, not only visually, but also in terms of sonic synergy, the preamp’s robust and full sound perfectly complimenting the power amp’s slightly leaner balance. The combined result is a musically always engaging sound that is solid and full-bodied, smooth and refined yet highly detailed and transparent, with perfect pacing, and great dynamics. Honestly, at 3200 euro, I haven’t heard a better amplifier, either integrated or separates.As great as the combo is, the AMG-STA power amplifier really is the star of the show. On its own, it is capable of performing on a level that is well and truly beyond what might be expected from an amplifier at its price point. To be more precise: if the preamp already performs at a level that belies its price sticker, the power amp steals the show as it has the ability to perform on the level of amplifiers that typically cost multiples of its modest 1.595-Euro price. I am not kidding!\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eCombine the AMG-STA with a great volume-controlled DAC and you’ll have a nearly unbeatable system. Between single and dual amps, if ever there was a no-brainer decision, this is it. The pair simply raises the performance in each and every audiophile parameter, without harming the emotional involvement.\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eAs should be clear by now, I am definitely impressed by NuPrime power amplifiers. First, the ST-10 proved to be a keeper, then the ST-10 Monos proved that the concept could be taken further, then the AMG-STA proved that Class-D can be as “analog” and as refined as the best linear power amplifiers, and now, the pair of AMG-STA’s have further raised the bar. Although the ST10 and ST10 Monos still have their unique flair, as of now, the pair of AMG-STA’s are my personal reference in the field of affordable power amplifiers with true high-end aspirations.\u003c\/em\u003e\u003cbr\u003e\u003cem\u003eWhether used as a single stereo model or as a double-mono pair, the AMG-HPA is an absolute HFA Favorite.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cblockquote\u003e\u003c\/blockquote\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"row-954716749\"\u003e\n\u003cdiv id=\"col-532001740\"\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003eStereo Power: 2 X 130W @ 8 Ohm \u0026amp; 2 X 200W @ 4 Ohm\u003c\/li\u003e\n\u003cli\u003eMono Power: 300W @ 8 Ohm \u0026amp; 320W  @ 4 Ohm\u003c\/li\u003e\n\u003cli\u003eRated \/ Peak Current: 10A \/ 15A\u003c\/li\u003e\n\u003cli\u003eGain : 26 (stereo) \u0026amp; 52 (mono)\u003c\/li\u003e\n\u003cli\u003eSignal to Noise Ratio : 100 dB @ 10W\u003c\/li\u003e\n\u003cli\u003eTHD+N : 0.006\u003c\/li\u003e\n\u003cli\u003eFrequency Response : 10Hz~50K Hz +-0.2dB @ 8 Ohm.  58K Hz @ -3dB\u003c\/li\u003e\n\u003cli\u003eInput Impedance: 1M Ohm\u003c\/li\u003e\n\u003cli\u003eSensitivity: 1.2 Vrms @ Stereo; 0.95 Vrms @ Mono\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"NuPrime","offers":[{"title":"Default Title","offer_id":54652069642578,"sku":null,"price":14900.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/9454\/6667\/products\/nuprime-amg-sta-slutsteg.jpg?v=1692972078","url":"https:\/\/maxxteknik.com\/products\/demo-nuprime-amg-sta","provider":"Maxxteknik","version":"1.0","type":"link"}