{"product_id":"thoress-parametric-phono-equalizer-mkiii-enhancer","title":"THÖRESS Parametric Phono Equalizer MKIII \"Enhancer\"","description":"\u003cp\u003eBestillingsvare - Forventet leveringstid 4- 8 uger!\u003c\/p\u003e\n\u003cp\u003eTHÖRESS proudly presents the Parametric Phono Equalizer MKIII...\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eA highly versatile vacuum tube phono preamplifier which provides MM and MC gain\u003cbr\u003ewith excellent signal-to-noise performance in purely active operation mode (without\u003cbr\u003ethe aid of step-up transformer gain). And rather unique tone control facilities. More\u003cbr\u003especifically, the frequency response of the amplifier can be controled within wide\u003cbr\u003elimits by varying the three edge frequencies\u003cbr\u003ef1 (bass roll-off), f2 (bass turnover), f3 (treble roll-off)\u003cbr\u003eof the phono de-emphasis characteristic independently of each other. By means of\u003cbr\u003ethree 6-position rotary switches TCSW1, TCSW2, TCSW3 (tone selectors). A topology\u003cbr\u003ewhich obviously justifies the term PARAMETRIC PHONO EQUALIZER.\u003c\/p\u003e\n\u003cp\u003eAs a side effect of this unique design concept, the entire range of phono\u003cbr\u003eequalization characteristics used by the prominent record labels throughout history\u003cbr\u003e(including those of pre-microgoove 78-rpm era) can be activated or at least closely\u003cbr\u003eapproximated by choosing appropriate tone selector settings. The tone selectors\u003cbr\u003egive rise to subtle bass, middeltone and treble control functions which are highly\u003cbr\u003eeffective tools for restoring tonal imperfections of the replayed vinyl programm\u003cbr\u003e(eventually introduced during the recording or cutting process) without involving\u003cbr\u003eadditional clumsy and sound destructive tone control circuitry! Tone control is\u003cbr\u003eparticularly useful for the playback of monophonic records, nonetheless numerous\u003cbr\u003estereophonic records (including those from the 1970s and 80s or even current\u003cbr\u003eproductions) do benefit from subtle tone control facilities, as well. The favorable\u003cbr\u003erange of the tone selectors has been determined and optimized by evaluating a\u003cbr\u003elarge variety of vinyl records with a laboratory sample. Thanks to it-s unique tone\u003cbr\u003econtrol facilities the amplifier will allow you to listen more deeply into the groove of\u003cbr\u003erecords than it is ever possible with a phono preamplifiers restricted to a fixed\u003cbr\u003e(RIAA) de-emphasis. Therefor we claim our preamplifier to be a PHONO ENHANCER!\u003cbr\u003eA detailed description of the enhancement procedure can be found in the user manual.\u003cbr\u003eReal-to-real tape NAB and IEC equalization (for various tape velocities) can be\u003cbr\u003einstalled on our preamplifier aside the phono settings, on request. So that the\u003cbr\u003edevice can be also employed as an ultimate stand-alone reel-to-reel tape playback\u003cbr\u003eamplifier.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTOPOLOGY\u003cbr\u003eThe Phono Enhancer is entirely based on SINGLE-ENDED ZERO-FEEDBACK\u003cbr\u003eschematics (using (2x12J5GT+2xPC86) or (2x6J5GT+2xPC86) vacuum tubes).\u003cbr\u003eDecidedly ignoring the fact that many music lovers persistently believe in the myth\u003cbr\u003ethat balanced technology (and the associated cable configuration with XLR\u003cbr\u003econnectors) is generally superior over single-ended concepts. Readers who want to\u003cbr\u003elearn more about our view on balanced techniques and our general design approach\u003cbr\u003eare encouraged to read the paper (THÖRESS - Behind the Curtain) available as\u003cbr\u003edownload on the ABOUT button of our website. With regard to our commitment to\u003cbr\u003esingle-ended design principles, the exclusive use of RCA jacks for signal input and\u003cbr\u003eoutput was obligatory.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBUILT\u003cbr\u003eThe amplifier is built with meticulous hand construction using our proven point-topoint wiring techniques, whereas much care has been taken in arranging each\u003cbr\u003easpect of the internal construction to ensure low noise performance, ease of service\u003cbr\u003eand the highest reliability for many years to come. The Phono Enhancer is an\u003cbr\u003eultimate component and as such a worthy complement to our Dual Function\u003cbr\u003eAmplifier. The sonic presentation of the amplifier is of utmost refinement and thus\u003cbr\u003ewill easily measure up to the highest expectations of every discerning music lover or\u003cbr\u003eprofessional user.\u003cbr\u003eINPUTS\u003cbr\u003eThe amplifier comprises 6 phono inputs with gain pattern (5xMC+1xMM), five inputs\u003cbr\u003ewith 65dB MC gain and one input with 45dB MM gain (presenting a standard 47K\u003cbr\u003eload to the cartridge). Alternatively, a gain pattern (1xMC+5xMM) can be\u003cbr\u003eimplemented on request. However, it is not possible to install an arbitrary MC+MM\u003cbr\u003egain pattern for technical reasons. The cartridge loading is\u003cbr\u003e(100, 200, 300, 500, 1000 \/ 47.000) ohms and (500 ohm\/47K, 47K, 47K, 47K, 47K).\u003cbr\u003eon (5xMC+1xMC) and (1xMC+5xMM) standard units respectively. Other load values\u003cbr\u003ecan be easily installed on demand.\u003c\/p\u003e\n\u003cp\u003eOUTPUTS\u003cbr\u003eThe output impedance of the Phono Enhancer is sufficiently low (around 300 ohms)\u003cbr\u003eto simultaneously drive long cable runs and line inputs with an input impedance as\u003cbr\u003elow as 10.000 ohms without compromising sound quality whereas the 3dB-down\u003cbr\u003efrequency under 10.000 ohm loading donditions is still well below the audio band\u003cbr\u003e(lower than 5Hz, 3.3MFD output coupling capacitor). The circuit terminates in triple\u003cbr\u003eoutput (2x3 RCA jacks pairwise connected in parallel) which is useful for proper\u003cbr\u003e(hum-free) dual-channel mono playback installation in the context of SINGLE-COIL\u003cbr\u003e(mono) cartridges, as described in a dedicated paragraph of the user manual.\u003cbr\u003eMAINS TRANSFORMER\u003cbr\u003eThe Phono Enhancer is equipped with a proprietary mains transformer produced inhouse to ensure the highest possible quality. This part has been specifically designed\u003cbr\u003efor low body noise emission and low leakage. Nevertheless, it is mounted to the\u003cbr\u003echassis via isolation elements in order to eliminate even the slightest interference of\u003cbr\u003eresidual transformer vibrations with the circuit. Since the mains transformer is\u003cbr\u003eproduced in-house we can readily customize the amplifier for all kinds of mains\u003cbr\u003evoltages, such as 100Vac (Japan), 120Vac (USA, Canada), 220Vac (South Korea,\u003cbr\u003eChina, Thailand, Indonesia), 240Vac (UK) or 245 Vac (Australia).\u003c\/p\u003e\n\u003cp\u003eF E A T U R E O V E R V I E W\u003cbr\u003e• Highly versatile vacuum tube phono preamplifier (phono equalizer).\u003cbr\u003e• 6 phono inputs with gain pattern (5xMC+1xMM) and cartridge loading\u003cbr\u003e(100, 200, 300, 500, 1000; 47.000) ohms. Alternatively, a gain pattern\u003cbr\u003e(1xMC+5xMM) can be implemented on request.\u003cbr\u003e• MC gain with state-of-the-art signal-to-noise-performance in purely active\u003cbr\u003eoperation mode (without the aid of step-up transformer gain).\u003cbr\u003e• Minimalist single-ended zero-feedback schematic with passive de-emphasis\u003cbr\u003einstallation utilizing (2x12J5GT+2xPC86) vacuum tubes.\u003cbr\u003e• Edge frequencies of the de-emphasis characteristic independently on-the-fly\u003cbr\u003eadjustable within wide limits by means of three 6-position rotary selectors. Realto-reap tape NAB and IEC equalization settings can be installed aside the phono\u003cbr\u003esettings on request.\u003cbr\u003e• Entire range of phono equalization characteristics used by the prominent record\u003cbr\u003elabels throughout history can be activated by choosing appropriate selector\u003cbr\u003esettings. Equalization settings suitable for 78-rpm playback included. Highly\u003cbr\u003eaccurate RIAA equalization with tone selectors in default position.\u003c\/p\u003e\n\u003cp\u003e• Subtle yet highly effective tone control facilities for restoring tonal imperfections\u003cbr\u003eof the vinyl program, implemented without the aid of clumsy sound-degrading\u003cbr\u003econventional tone control circuitry.\u003cbr\u003e• 3 outputs (3x2 RCA jacks) with very low output resistance.\u003cbr\u003e• Full hand construction, point-to-point wiring throughout.\u003cbr\u003e• Ultra low noise mains transformer produced in-house for 230Vac (115Vac via\u003cbr\u003ejumper setting), 100Vac (Japan), 120Vac (USA, Canada), 220Vac (South Korea,\u003cbr\u003eChina, Thailand, Indonesia), 240Vac (UK) or 245 Vac (Australia).\u003cbr\u003e• Non-magnetic aluminum casework, front and rear panel with anodized printing,\u003cbr\u003epowder coated lids.\u003cbr\u003e• Dimensions: 434x434x154 mm, 154=134+20 (case feet).\u003cbr\u003e• Dimensions of the shipping box: 650x650x350 mm, weight 11.6Kg.\u003c\/p\u003e","brand":"Thöress","offers":[{"title":"Default Title","offer_id":56854685745483,"sku":null,"price":82000.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/7991\/2779\/files\/thoeress-phono-enhancer-1.jpg?v=1774090613","url":"https:\/\/sallingboeaudio.com\/products\/thoress-parametric-phono-equalizer-mkiii-enhancer","provider":"Sallingboe Audio","version":"1.0","type":"link"}