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REGA Apheta 3. Moving Coil (MC) capsule
For over 15 years, Rega has been perfecting its unique moving coil capsule designs.
We have pioneered undamped micro mass generation systems coupled with high integrity seamless bodies. In recent times, we have reached new levels of rare earth magnet power. This 15-year evolution using the latest technological manufacturing process and recognised laws (Flemings) led us to build the successful Apheta 2.
With the Apheta 3 we have pushed another boundary, for several years we have been developing state of the art diamond profiles with a "fine line" design mounted at 90 degrees (the same technique used in our reference model Aphelion) this work has resulted in Apheta 3 extracting even more detail from the recording rhythm which of course translates into more music.
Apheta 3 features a very high power neodymium magnet and a meticulously hand-wound coil in an iron cross that is fifty percent smaller than the MK1 model. This weight reduction allows us greater freedom to track the vinyl groove.
The Apheta 3 is housed within a completely redesigned one-piece anodised aluminium body and protected by a CAD computer-aided design designed smoked hard cover to protect the fine internal wires, making handling during assembly safe and secure.
The Apheta 3 is the perfect companion for the latest Planar 8 and Planar 10 turntables.
A unique design
Rega's moving coil capsule design is unique in its approach to achieving an ultra-low mass generator that is undamped (no connecting cable) by using a unique rhomboidal pivot for the cantilever powered by a neodymium magnet system designed specifically for Rega. This type of design requires a capsule body designed to zero tolerance, which is Rega's area of expertise and with the Apheta 3 these bodies are machined from a single piece of the highest quality aluminium. This is a difficult and expensive process that requires all of Rega's years of experience to achieve. In particular, "zero" body tolerance is required in the alignment and dimension of the pivot pad mounting hole and the magnetic mechanism mounting hole ratio.
Conventional MC capsules use a steel suspension system (cable clamp) which creates a high frequency resonance of high amplitude (typically around 8-12 kHz). Such resonance is unacceptable and is usually damped by a rudimentary piece of foam rubber. However, foam rubber deteriorates over time and cannot prevent the entire structure from vibrating and "ringing". The details and adjustment of the cable clamping and damping determine whether the capsule is damped (bright sound) or too damped (warm and heavy sound).
A happy medium is rarely achieved. This encouraged Rega to follow a new direction inspired by modern materials and the basic laws of magnetism. The Apheta 3 capsule does not contain a cable clamp or a foam damper. Moving coil aficionados will recognise the long pursuit of super-clear, high-frequency characteristics combined with tight, tight bass, characteristics exhibited by all Rega moving coils.
Key features:
Iron cross and iron coil assembly 50% smaller than the original Apheta.
One of the world's smallest MC generators
Innovative neodymium magnet
Fine line profile with bare diamond stylus
Fine high specification cable
Technical specifications:
Tracking pressure 1.9 - 2.00g.
Input load impedance 100 ohms.
Output impedance 10 ohms.
Rated output voltage 350μV.
Channel balance: ≥ 20μV
Separation : ≥ -29dB.
Mass 6g
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