{"id":187,"date":"2021-04-12T16:19:52","date_gmt":"2021-04-12T14:19:52","guid":{"rendered":"https:\/\/acousticprecision.wordpress.com\/?page_id=187"},"modified":"2021-06-08T13:32:26","modified_gmt":"2021-06-08T11:32:26","slug":"lyra-etna-sl","status":"publish","type":"page","link":"https:\/\/acoustic-precision.fr\/index.php\/lyra-etna-sl\/","title":{"rendered":"LYRA ETNA SL"},"content":{"rendered":"\n<div class=\"wp-block-jetpack-layout-grid alignfull column1-desktop-grid__span-2 column1-desktop-grid__start-5 column1-desktop-grid__row-1 column2-desktop-grid__span-2 column2-desktop-grid__start-7 column2-desktop-grid__row-1 column1-tablet-grid__span-4 column1-tablet-grid__row-1 column2-tablet-grid__span-4 column2-tablet-grid__start-5 column2-tablet-grid__row-1 column1-mobile-grid__span-4 column1-mobile-grid__row-1 column2-mobile-grid__span-4 column2-mobile-grid__row-2 are-vertically-aligned-center\">\n<div class=\"wp-block-jetpack-layout-grid-column wp-block-jetpack-layout-grid__padding-none is-vertically-aligned-center\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" width=\"205\" height=\"51\" src=\"http:\/\/acoustic-precision.fr\/wp-content\/uploads\/2021\/06\/logo-2.png\" alt=\"\" class=\"wp-image-1228\"\/><\/figure><\/div>\n\n\n\n<p class=\"has-text-align-center\"><strong><strong>LYRA ETNA Lambda SL Single Layer<\/strong><\/strong><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-jetpack-layout-grid-column wp-block-jetpack-layout-grid__padding-none is-vertically-aligned-center\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"700\" height=\"400\" src=\"http:\/\/acoustic-precision.fr\/wp-content\/uploads\/2021\/06\/LYRA-ETNA-LAMBDA-page-principale-et-pages-Etna.jpg\" alt=\"\" class=\"wp-image-1229\" srcset=\"https:\/\/acoustic-precision.fr\/wp-content\/uploads\/2021\/06\/LYRA-ETNA-LAMBDA-page-principale-et-pages-Etna.jpg 700w, https:\/\/acoustic-precision.fr\/wp-content\/uploads\/2021\/06\/LYRA-ETNA-LAMBDA-page-principale-et-pages-Etna-300x171.jpg 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p><strong>LYRA ETNA SL Lambda &#8220;Single Layer&#8221; low-impedance, low-output<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>This is a special, built-to-order, version of Etna for expert users with very high-gain, extra low noise phono stages, or alternatively a step-up transformer designed for phono cartridges of 2 &#8211; 3 ohms or less.<br>Most users (and phono stages) will benefit from the regular Etna with much higher output and considerably more energy; resulting in a much better signal-to-noise ratio. If you are in doubt about which version of Etna that will work best in your system, please go with the regular Etna.<br>The Etna SL may provide extra pure and pristine sound from an audio system that is optimized for a low-impedance, low-output cartridge. However, this may be accompanied with a lesser level of energy and power.<br>Lyra nevertheless has decided to offer SL models, as built-to-order at a 10% surcharge, for those who are confident that they can extract the benefits from such a low-output MC phono cartridge.<br><br><strong>SPECIFICATIONS FOR ETNA SL<\/strong><br>\u2022 <strong>Designer: <\/strong>Jonathan Carr<br>\u2022 <strong>Builder:<\/strong> Yoshinori Mishima (final build, testing), Akiko Ishiyama (preliminary build)<br>\u2022 <strong>Type:<\/strong> Medium weight, medium compliance, low-impedance, low-output moving coil cartridge<br>\u2022 <strong>Stylus:<\/strong> Lyra-designed long-footprint variable-radius line-contact nude diamond (3um x 70um profile, block dimensions 0.08 x 0.12 x 0.5mm), slot-mounted<br>\u2022 <strong>Cantilever system:<\/strong> Diamond-coated solid boron rod with short one-point wire suspension, directly mounted into cartridge body via high-pressure knife-edge system<br>\u2022<strong> Coils:<\/strong> 2-layer deep, 6 N high-purity copper, chemically-purified high purity iron X-shaped former, 1.52 ohm self-impedance, 1.9\u03bcH inductance<br>\u2022 <strong>Output voltage:<\/strong> 0.25 mV@5 cm\/sec., zero to peak, 45 degrees (CBS test record, other test records may alter results)<br>\u2022 <strong>Frequency range: <\/strong>10 Hz-50 kHz<br>\u2022 <strong>Channel separation: <\/strong>35 dB or better at 1 kHz<br>\u2022 <strong>Compliance: <\/strong>Approx. 12 X10 cm\/dyne at 100 Hz<br>\u2022 <strong>Vertical tracking angle: <\/strong>20 degrees \u2022 <strong>Cartridge body:<\/strong> Multi-material (titanium, duralumin, bronze, stainless steel) self-clamping construction with reduced-surface higher-pressure headshell contact area, predominately non-parallel shaping, phase-interference resonance-controlling mechanisms, body threaded for mounting screws<br>\u2022 <strong>Cartridge mounting screws:<\/strong> 2.6 mm 0.45 pitch JIS standard<br>\u2022 <strong>Distance from mounting holes to stylus tip: <\/strong>9.52mm<br>\u2022 <strong>Cartridge weight (without stylus cover): <\/strong>9.2g<br>\u2022 <strong>Recommended tracking force: <\/strong>1.65 ~ 1.78g (1.72g recommended)<br>\u2022 <strong>Recommended load directly into MC phono input: <\/strong>Determine by listening,<br>\u2022 <strong>Recommended load via step-up transformer: <\/strong>Use a step-up transformer designed for 2 &#8211; 3 ohms cartridge impedance. The transformer output must be connected to standard 47kohm MM-level RIAA input, preferably via short, low-capacitance cable<br>\u2022 <strong>Recommended tonearms:<\/strong> High-quality pivoted or linear tangential tonearms with rigid bearing(s), adjustable anti-skating force, preferably VTA<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-file\"><a href=\"http:\/\/acoustic-precision.fr\/wp-content\/uploads\/2021\/06\/Lyra-Etna-F.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Lyra-Etna-F<\/a><\/div>\n\n\n\n<div class=\"wp-block-file\"><a href=\"http:\/\/acoustic-precision.fr\/wp-content\/uploads\/2021\/06\/Lyra-etna-sl-HiFi-News-.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Lyra-etna-sl-HiFi-News-<\/a><\/div>\n\n\n\n<div class=\"wp-block-file\"><a href=\"http:\/\/acoustic-precision.fr\/wp-content\/uploads\/2021\/06\/Lyra-Etna-SL-HiFi-News-review.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Lyra-Etna-SL-HiFi-News-review<\/a><\/div>\n\n\n\n<div class=\"wp-block-file\"><a href=\"http:\/\/acoustic-precision.fr\/wp-content\/uploads\/2021\/06\/LYRA-ETNA-Review-TAS.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">LYRA-ETNA-Review-TAS<\/a><\/div>\n\n\n\n<div class=\"wp-block-file\"><a href=\"http:\/\/acoustic-precision.fr\/wp-content\/uploads\/2021\/06\/Lyra-ETNA-Roy-Gregory-The-AudioBeat.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Lyra-ETNA-Roy-Gregory-The-AudioBeat<\/a><\/div>\n\n\n\n<p><strong>Les technologies LYRA&nbsp;:<\/strong><\/p>\n\n\n\n<p>La nouvelle cellule LYRA ETNA partage son nom avec le majestueux volcan de Sicile.&nbsp; Elle impressionne en effet \u00e0 plus d\u2019un titre, en alliant les toutes derni\u00e8res trouvailles du concepteur des cellules phono LYRA, Jonathan Carr, aux principes \u00e9prouv\u00e9s d\u00e9velopp\u00e9s pour les mod\u00e8les pr\u00e9c\u00e9dents.<\/p>\n\n\n\n<p>Le c\u0153ur de l\u2019ETNA est en titane massif, mais, contrairement au haut de gamme Atlas (et auparavant \u00e0 la Titan-I), ce noyau central est entour\u00e9 par une coque externe usin\u00e9e dans un aluminium de qualit\u00e9 a\u00e9ronautique hautement poli et anodis\u00e9 avec une finition noire attrayante. Les deux pi\u00e8ces sont assembl\u00e9es par pressage (pas de colle) avec des barres antir\u00e9sonance et trous traversants pour les vis en acier inoxydable amagn\u00e9tiques. Cette approche est similaire \u00e0 celle de la Skala mais avec une rigidit\u00e9 et des caract\u00e9ristiques d\u2019amortissement m\u00e9canique tr\u00e8s sup\u00e9rieures. L\u2019avantage de cette construction multi-mat\u00e9riaux et multicouche est qu\u2019\u00e0 la diff\u00e9rence de l\u2019usage d\u2019un mat\u00e9riau unique, aucune signature sonore r\u00e9p\u00e9titive n\u2019est perceptible ; il n\u2019y a pas de coloration permanente perturbant la reproduction.<\/p>\n\n\n\n<p>La construction de l\u2019ETNA emploie une armature de forme asym\u00e9trique, diff\u00e9rente \u00e0 droite et \u00e0 gauche. Ce concept de construction qui a fait ses preuves avec l\u2019ATLAS. En d\u00e9calant le support frontal de l\u2019aimant de telle sorte qu\u2019il ne soit pas align\u00e9 avec le levier porte diamant, un chemin direct est cr\u00e9\u00e9 entre celui-ci et le bras de lecture. Les vibrations s\u2019\u00e9coulent rapidement une fois converties en signaux \u00e9lectriques, supprimant efficacement toute r\u00e9sonance induite, g\u00e9n\u00e9ratrice de coloration sonore. LYRA reste le seul fabricant de cellules \u00e0 monter le levier porte diamant directement dans le corps de la cellule cr\u00e9ant ainsi une liaison continue totalement rigide entre le levier porte diamant et la coquille. Le levier porte diamant lui-m\u00eame est en bore plaqu\u00e9 diamant et \u00e9quip\u00e9 d\u2019un diamant&nbsp;\u00ab&nbsp;fine line contact&nbsp;\u00bb.<\/p>\n\n\n\n<p>L\u2019ETNA conserve la disposition en X des bobines, d\u2019abord d\u00e9voil\u00e9e dans l\u2019ATLAS. Compar\u00e9e \u00e0 la disposition en carr\u00e9 traditionnelle, la forme en X permet \u00e0 chaque canal de travailler ind\u00e9pendamment de l\u2019autre, augmentant la coh\u00e9rence de la lecture de chacun tout en am\u00e9liorant aussi la s\u00e9paration des canaux en raison de la diminution de diaphonie.<\/p>\n\n\n\n<p>Comme la Delos, la Kleos et l\u2019Atlas, l\u2019\u2019ETNA utilise la nouvelle technologie \u00ab les vinyles sous un autre angle \u00bb. L\u2019axe des bobines mobiles est inclin\u00e9 au repos de telle sorte qu\u2019elles sont parfaitement align\u00e9es avec les aimants avant et arri\u00e8re pendant la lecture des LP (la force d\u2019appuis modifiant l\u2019alignement du porte diamant).&nbsp; Grace \u00e0 cette disposition originale, les bobines mobiles&nbsp; se d\u00e9placent de mani\u00e8re optimale dans toutes les directions et dans un champ magn\u00e9tique uniforme. Les distorsions de lecture sont minimis\u00e9es.<\/p>\n\n\n\n<p><strong>LYRA ETNA Lambda &#8220;New Angle&#8221;, &#8220;Asymmetric&#8221;, &#8220;Multi-Material&#8221;<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>It is always a challenge to design a worthy heir to a successful product. For the Lyra Etna, however, that challenge was twice as difficult as normal. On one hand its primary goal was to replace the popular Titan. On the other hand, the Etna design project had a second goal, which was to achieve as high levels of performance as possible. If this meant that Etna would give stern competition to the flagship Atlas, so be it.<br><br>As a model intended to retail for significantly less than Atlas, but having similar aspirations to the pinnacles of performance, Etna was designed with a strong emphasis on engineering efficiency, so that its performance would be as far beyond the sum of its parts as possible. For this reason, although it shares some of its design philosophy with the Atlas, the concepts are executed rather differently.<br><br>Etna employs a solid titanium core structure machined with non-parallel surfaces to inhibit internal reflections wherever possible, but unlike Atlas (and Titan i before it), this is mated to a slightly undersized, asymmetric duralumin outer body that is designed to lock over the core like a very tightly-fitting jigsaw puzzle. The core and body are augmented with bronze and stainless-steel resonance control rods, then everything is pressure-fit together into a pre-stressed, solid, void-free structure which is comprised of multiple materials and complex internal shapes. The constrained-layer nature of this construction dramatically reduces the resonant signature of each material and creates a far more neutral-sounding body structure than otherwise possible, while the high body stiffness benefits transients, dynamics and resolution.<br><br>Linear transducers such as loudspeakers and phono cartridges are inherently inefficient devices &#8211; on the order of 5 to 10%. In other words, of the vibrational energy that enters a cartridge from the LP groove, only 5 to 10% will be converted into electrical signal. The cartridge&#8217;s internal damping system will dissipate some of the remaining 90 to 95%, but much of the excess vibrational energy will reflect inside the cartridge, creating internal echoes, smearing, and a general diminishing of fidelity. It is easy to demonstrate this with many cartridges &#8211; play a highly modulated LP with the power amp turned off, and bring your ear close to the cartridge. The &#8220;needle-talk&#8221; that you hear is excess vibrational energy which isn&#8217;t being controlled properly. To help conduct this excess vibrational energy into the headshell, where it can be safely dissipated within the greater mass of the tonearm and turntable plinth, Lyra has traditionally mounted the cantilever directly into the cartridge body, resulting in a rigid, seamless connection between the cantilever assembly and tonearm headshell (as it happens, we remain the only manufacturer to do so).<br><br>In the process of designing Atlas, we discovered that in addition to coupling the cantilever to headshell with a rigid, unbroken path, further sonic gains could be realized by removing all objects and voids from the path. Atlas&#8217; asymmetric shape was conceived partly for this purpose, to move the front magnet carrier, mounting screw and screw hole out of the way of the mechanical path connecting cantilever to headshell.<br><br>Etna utilizes the same asymmetrical concept, but whereas Atlas offsets the screw and screw hole to one side, Etna moves the screw \/ screw hole all the way to the front of the cartridge &#8211; and interposes an additional bronze damping barrier between the screw \/ screw hole and the mechanical path linking cantilever to headshell. By displacing the front magnet carrier and other components so that no objects or voids are in line with the cantilever assembly, a truly direct path is established between the cantilever assembly and headshell. Control over spurious resonances is further assisted by the use of a narrowed mounting area, which couples Etna more tightly to the headshell and facilitates the transfer of vibrational energy into the tonearm. Vibrations are quickly drained away once converted to electrical signals, effectively suppressing induced resonances and internal reflections that would otherwise manifest themselves as sonic colorations and overhang.<br><br>Etna uses a yokeless dual magnet system, diamond-coated boron rod cantilever and Lyra-designed variable-radius line-contact stylus (major radius 70 micrometers, minor radius 3 micrometers, block dimensions 0.08 x 0.12 x 0.5mm, mounted within a slot machined into the front of the cantilever), and builds the cantilever assembly directly into the titanium body structure.<br><br>Both the cantilever and the insides of the titanium body core are shaped so that joining the two components to each other creates a double-knife-edge mounting system, which focuses as much pressure as possible on the joint area and achieves a type of cold weld. More rigid than the cantilever mounting system employed in the Titan, this design facilitates the transfer of mechanical energy away from the stylus and signal coil area and minimizes reflected mechanical energy, thereby significantly reducing distortion and resonances.<br><br>Another design strength is Etna&#8217;s high-efficiency X-shaped signal coils, which it shares with the flagship Atlas. Compared to traditional square coil formers the X-shape allows each channel to operate with greater independence from one another, giving better tracking, tighter channel matching, improved separation, and lower crosstalk-induced distortion.<br><br>Although there are and have been other X-coil cartridges; their benefits have been accompanied by poor efficiency (in converting mechanical work into electrical output), either requiring high internal impedance (the larger coils add considerable moving mass and increase noise), and\/or having low output voltage (which stresses the phono stage). To overcome this weakness, Lyra conducted a careful investigation of X-core coils, using a combination of mathematical analysis and hands-on experimentation. The outcome of the analysis program was a very specific X-core shape that not only had higher efficiency than any previous X-core cartridge, but also surpassed the efficiency of our earlier square-coil cartridge designs.<br><br>Rather than using all of the extra efficiency to single-mindedly increase the output voltage, we chose to allocate part of the extra efficiency to increase the output voltage (12% higher than Titan i), and use the remainder of the extra efficiency to reduce the amount of wire in the coils (22% less than Titan i). The lowered mass further improves tracking performance, while the higher output and lower internal impedance allow phono stages to perform better.<br><br>Etna uses Lyra&#8217;s &#8220;New Angle&#8221; technology, which mechanically pre-biases the signal coils so that the vertical tracking force brings them into perfect alignment with the front and rear magnets when LP playback takes place. This system also equalizes out discrepancies in vertical and horizontal compliances, and enables Etna&#8217;s coils to move with equal ease in all directions for wider dynamics, higher resolution, and improved tracking.<br><br>In every possible way, we have done our utmost to enable Etna to reach the very highest levels of performance. While Etna is second from the top in Lyra&#8217;s line, one listen will demonstrate that its performance would define the very top of any other cartridge line.<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>LYRA ETNA SL Lambda &#8220;Single Layer&#8221; low-impedance, low-output This is a special, built-to-order, version of Etna for expert users with very high-gain, extra low noise phono stages, or alternatively a step-up transformer designed for phono cartridges of 2 &#8211; 3 ohms or less.Most users (and phono stages) will benefit from the regular Etna with much [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/acoustic-precision.fr\/index.php\/wp-json\/wp\/v2\/pages\/187"}],"collection":[{"href":"https:\/\/acoustic-precision.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/acoustic-precision.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/acoustic-precision.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/acoustic-precision.fr\/index.php\/wp-json\/wp\/v2\/comments?post=187"}],"version-history":[{"count":1,"href":"https:\/\/acoustic-precision.fr\/index.php\/wp-json\/wp\/v2\/pages\/187\/revisions"}],"predecessor-version":[{"id":1256,"href":"https:\/\/acoustic-precision.fr\/index.php\/wp-json\/wp\/v2\/pages\/187\/revisions\/1256"}],"wp:attachment":[{"href":"https:\/\/acoustic-precision.fr\/index.php\/wp-json\/wp\/v2\/media?parent=187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}