A DESIGN THAT HAS BEEN 15 YEARS IN THE MAKING AND MORE THAN 50 YEARS OF
\nHERITAGE
\nIt\u2019s no secret that we are lovers of the 73 topology since the very beginning of Heritage Audio,
\nespecially the 3055-driven transformer coupled Class A output stage which is the trademark of
\nthat sound. After years of consideration, we\u2019ve managed to adopt the legendary 3-transistor
\ntopology circuit to serve as the best DI you could ever get, at any price range.
\nThis wasn\u2019t an easy task, as a very high input impedance was needed and phantom power was
\na must. The first transistor in the 73 stage was substituted by a J109 JFET, yielding a 2.2
\nmegohm input impedance instead of the 47 Kohms in the original circuit. This transistor is the
\nsame one that is used (and loved) in the tens of thousands of the preamp DIs that Heritage
\nAudio has included in all of its products over the last decade and a half turning it into an industry
\nstandard.
\nA clever design on the power supply section allows it to keep the metal can 2n3055 output
\ntransistor that directly drives the custom-developed silicon steel grain-oriented output
\ntransformer, which is a phantom power friendly version of the venerable LO1166, custom built to
\nenhance the natural performance of your instrument in the same, unique way, that a vintage 73
\npreamp will enhance a mic signal. The results need to be heard to be believed.
\nBeing a transformer based unit, its output is isolated from the instrument and there is a further
\nprovision for lifting the ground, as well. An additional 15dB PAD switch helps with hotter
\ninstruments and even allows speaker outputs to be plugged into the 73DI ONE and 73DI 2. A
\nTHRU parallel connection rounds out the pack, and all jacks and XLR are gold plated and
\nisolated from chassis.<\/p>\n
BRING OUT THE TRUE TONE OF ALL YOUR INSTRUMENTS
\nUsually, active DI boxes work best with passive circuitry instruments like guitars and basses but
\nthanks to the 73 DI\u2019s high input headroom, it can also be used wonderfully on keyboards,
\nsynths, drum machines and samplers when plugging them directly into a PA or recording system
\nis required. Passive basses such as P-Bass and Jazz Bass suddenly acquire a new life, with a
\nsparking high end, a solid bottom end and that low midrange saturation the 73 is famous for.
\nInstruments like the Fender Rhodes produce their full body and bell-like tone like never heard
\nbefore. Saturation makes Wurlitzer EPs growl like they\u2019re being amped without the hassle. The
\nlist goes on and on.
\nAND ENHANCE YOUR SIGNAL WITH JUST THE RIGHT TOUCH OF VINTAGE WARMTH
\nAND VIBE
\nThis meticulously engineered design is what gives the 73 DI its outstanding performance,
\ndelivering a rich, dynamic direct sound that fully captures the harmonic complexity of any<\/p>\n
instrument and even pre-recorded tracks.
\nAn attractive yet protective extruded aluminium case makes the 73 DI virtually indestructible and
\ntotally roadworthy, with all connections recessed for idiot-proof operation. Available in single and
\ndual channel configurations with a pending 8-channel version.<\/p>\n
BULLET POINTS 73 DI ONE
\n\u2022 Single channel active DI box
\n\u2022 Class A, JFET discrete input stage as found on all Heritage Audio top-of-the-line products
\n\u2022 Low impedance custom Heritage Audio designed 73-DI output transformer
\n\u2022 Outstanding signal integrity and superior noise rejection
\n\u2022 Rugged 14-gauge steel enclosure prevents PCB stress and potential component failure
\n\u2022 MIL-spec circuit board with full ground plane for ultra-quiet operation
\n\u2022 Durable metal switches rated for over 25,000 cycles
\n\u2022 15dB pad
\n\u2022 Ground lift switch
\n\u2022 Input \/ Thru gold-plated jacks
\n\u2022 Gold-plated XLR output
\n\u2022 Operated by standard +48V phantom power with red LED indicator light<\/p>\n","protected":false},"excerpt":{"rendered":"
Single channel active D.I. box infused with the emotion and vivacity of a vintage 73 style preamp.<\/p>\n
Heritage Audio is proud to introduce the 73 DI ONE and 73 DI 2, custom-made transformer-
\nequipped 73-Infused active D.I. boxes for exceptional professional studio recording, as well as<\/p>\n
live use.<\/p>\n","protected":false},"featured_media":19675,"template":"","meta":[],"pwb-brand":[126],"product_brand":[],"product_cat":[1025],"product_tag":[440],"class_list":["post-19673","product","type-product","status-publish","has-post-thumbnail","pwb-brand-heritage-audio","product_cat-cableado-patchbays-y-accesorios","product_tag-heritage-audio","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"brands":[{"id":126,"name":"HERITAGE AUDIO","slug":"heritage-audio"}],"_links":{"self":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product\/19673","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media\/19675"}],"wp:attachment":[{"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/media?parent=19673"}],"wp:term":[{"taxonomy":"pwb-brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/pwb-brand?post=19673"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_brand?post=19673"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_cat?post=19673"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/masteringmansion.com\/pro-audio\/wp-json\/wp\/v2\/product_tag?post=19673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}