Low Output Cartridges
Etna Moving-Coil Stereo Phono Cartridge
Lyra again turns the analog world on its ear with the introduction of the Etna phono cartridge. Sharing its name with Sicily’s majestic Mount Etna, Etna the cartridge is an impressive monument in its own right, one that melds tried and true Lyra design tenets with designer Jonathan Carr’s very latest thinking on phono cartridges.
Etna’s center structure is solid titanium, but unlike the renowned flagship Atlas (and the Titan i before it) this central core is surrounded by an outer body that is machined from highly-polished aircraft-grade aluminum and anodized with a sexy black finish. The two pieces are press-fitted with resonance control rods and stainless steel screw bushings in a multi-material approach that is similar to the Skala’s two-piece “blade structure” construction, but much improved in its rigidity and damping characteristics. The advantage of such constrained-layer construction is that no single material’s sonic signature defines the sound of the cartridge.
Etna’s asymmetric design employs an offset yoke, a design concept first brought to fruition in the flagship Atlas. By offsetting the front magnet carrier so that it is not in line with the cantilever assembly, a direct path is established between the cantilever assembly and the tonearm’s headshell. Vibrations are quickly drained away once converted to electrical signals, effectively suppressing any induced resonances that would otherwise manifest as sonic coloration.
Lyra remains the only cartridge manufacturer to mount the cantilever directly into the cartridge body, which results in a seamless, totally rigid connection between the cantilever assembly and headshell. The cantilever is diamond-coated boron, tipped with a slot-mounted nude line-contact diamond stylus.
Etna retains the X-shaped coil formers first unveiled in the flagship Atlas. Compared to traditional square coil formers, the X-shape allows each channel to operate with greater autonomy from one another, increasing tracking consistency and channel matching while also improving channel separation due to the decrease in crosstalk. Lyra’s new angle technology pre-biases the signal coils so they are perfectly aligned to the front and rear magnets during LP playback, which allows the coils to move optimally in all directions for superior, distortion-free playback.
With the introduction of Etna, the Titan i model is discontinued and now limited to stock on hand. The Lyra line now comprises Delos, Kleos, Skala, Etna and Atlas.
While Etna is second from the top in Lyra’s line, one listen will demonstrate that this cartridge’s performance would define the very top of any other cartridge line. Atlas has a very refined, elegant and voluptuous sound while Etna’s personality is more outgoing. We truly believe that choosing between these two exceptional performers will come down to one’s tastes and the system in which it will live. For many customers Etna will be ideal and become their preferred Lyra.
Specifications for Lyra Etna SL
Designer: Jonathan Carr
Builder: Yoshinori Mishima
Type: Medium weight, medium compliance, low-impedance moving coil cartridge
Stylus: Lyra-designed long-footprint variable-radius line-contact nude diamond (3μm×70μm), slot-mounted
Cantilever system: Diamond-coated solid boron rod with short one-point wire suspension, directly mounted into cartridge body via highpressure knife-edge system
Coils: single layer, 6 N high-purity copper, chemically-purified high
purity iron cross-shaped former, 1.52 ohm self impedance, 1.9μH inductance
Output voltage: 0.25mV@5 cm/sec., zero to peak, 45 degrees (CBS test
record, other test records may alter results)
Frequency range: 10 Hz?50 kHz
Channel separation: 35 dB or better at 1 kHz
Compliance: Approx. 12×10 cm/dyne at 100 Hz
Vertical tracking angle: 20 degrees
Cartridge body: Multi-material (titanium, duralumin, bronze, stainless
steel) self-clamping construction with reduced-surface higher-pressure
headshell contact area, predominately non-parallel shaping, phaseinterference
resonance-controlling mechanisms, and body threaded
directly for mounting screws
Cartridge mounting screws: 2.6 mm 0.45 pitch JIS standard
Cartridge weight (without stylus cover): 9.2g
Distance from mounting holes to stylus tip: 9.52mm
Recommended tracking force: 1.68?1.78g (1.72 g recommended)
Recommended load directly into MC phono input: Determine by listening.
Recommended load via step-up transformer: 1?10ohm (connect step-up
transformer's output to 10kohm?47kohm MM-level RIAA input,
preferably via short, low-capacitance cable)
Recommended tonearm: High-quality pivoted or linear (tangential)
tonearm with rigid bearing(s), adjustable anti-skating force, preferably