{"product_id":"sony-ta-e77esd","title":"Sony TA-E77ESD","description":"\u003cp\u003eNot counting the big league ESPRIT preamplifiers, the TA-E77ESD was Sony's first preamp since the late 1970s' TA-E7B or TA-E88B. And there never was an ES preamplifier\/amplifier combo in Japan, before the 77 combo... or after. The E77ESD is the companion to the TA-N77ES pôwerhouse.  Feeding everybody is a large toroidal transformer plus a small transformer for the logic circuits. The toroidal however is a little lie : it really a regular EI potted into a round enclosure !  Nevertheless, multiple windings feed separately the digital and analog sections, all separated by copper bus bars and a very clean main board. Naturally, the E77ESD rests on a G-base. Other parts are typical Sony (Nichicon Muse and Elna Duorex etc) and the two main caps are 4,700uF Elna Great Supply. Output impedance is a low 45 Ohm.  The E77ESD was Sony's equivalent of Denon's DAP-5500 - better looking, though. Made to accept the sources which, then, were starting to offer digital outputs : CD, DAT, ED Beta and Laserdisc.  But that wasn't much to justify a dedicated preamp, considering that DAT never made it and Sony's politics toward Laserdisc were -even then- rather discrete. Mostly, the evolution of digital chips was then still raging and that made for the included d\/a converters quick \"obsolescence\". However, unlike Denon's units, the TA-E77ESD sold extremely well worldwide !\u003c\/p\u003e\n\n\u003cp\u003eType :  Low noise FET high gain NFB type equalizer amplifier passive type direct tone controls Dual d\/a converters with 4fs digital filter Digital inputs : 3x digital coaxial Analogue inputs : 2x Tape 1x CD 1x Tuner 1x Aux 1x Phono + Adaptor IN Digital output : 1x digital coaxial Analogue outputs : 2x tape 1x DAT (analog) Audio\/Video IN : 1x Adaptor OUT Audio\/Video OUT : 2x Pre-OUT 3x A+V (composite) 2x S-Video 2x A+V (composite) 2x S-Video Digital frequency response : 5Hz...20Khz (+\/-0,5dB at 44.1Khz) Digital THD : \u0026lt; 0,004%@1Khz (44.1Khz) Analogue frequency response : 3Hz...300Khz (lines) 3Hz...300Khz (-3dB, adaptor In) RIAA +\/-0,2dB (MM) Inputs sensitivity : 150mV \/ 50kOhm (lines) 0,17mV \/ 1kOhm (MC 40 Ohm) 2,5mV \/ 50kOhm (MM) Maximum input : 9mV (MC) 150mV (MM) S\/N ratio : 105dB (lines) 83db (MC, 0,5mV input) 95dB (MM, 5mV input) Residual noise : \u0026lt; 10mV (IHF-A) Outputs : 150mV \/ 1kOhm (Rec\/Video\/DAT\/Adaptor OUT)  0,45mV (headphones) 1,5V \/ 45 Ohm nominal (pre OUTs) Bass control : +3,5 \/ -4dB @200Hz, +7 \/ -6dB @400Hz Treble control : +7 \/ -7,5dB @3Khz, +3,5 \/ -3,5dB @5Khz Subsonic filter : 6dB\/octave below 15Hz PC : 30W Dimensions : 47 x 13 x 37cm Weight : 13kg.\u003c\/p\u003e","brand":"Sony","offers":[{"title":"Default Title","offer_id":59370576576857,"sku":"1605","price":889.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1066\/5721\/8905\/files\/sony-ta-e77esd-1.jpg?v=1789118163","url":"https:\/\/wenwaudio.com\/products\/sony-ta-e77esd","provider":"W\u0026WAudio","version":"1.0","type":"link"}