Overview
The latest from the acoustics team at Campfire Audio, Astrolith represents the tip-of-the-spear for IEMs using a pure planar magnetic architecture. Further expanding on Campfire’s lineage of planar earphones, Astrolith incorporates two new drivers wrapped in our PPR and AAOI tuning elements. Combining the inherent advantages of planar magnetic drivers with decades of acoustic engineering experiences brings about an incredible new horizon in the realm of planar magnetic IEMs.
Highlights
What's in the Box
Tech Specs
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Astrolith: Peak Performance, Inside and Out Astrolith combines a 14mm planar magnetic main driver that ranges from sub-bass to mid frequencies and blends seamlessly with our 6mm planar true high-frequency tweeter. This internal architecture highlights the purity of the speed, accuracy, impact, and ultimate resolution that only a planar magnetic driver can deliver. 6mm Planar + PPR With Astrolith, we are excited to reveal our first implementation of our 6mm planar magnetic driver, which is paired with our new Particle Phase Resonator (PPR) tuning chamber to bring truly astounding high-end performance. This driver is very atypical relative to other planar drivers due to its very small size. Larger planar drivers already move incredibly fast, so shrinking the form down and focusing the response to the high frequencies, creates lightning fast transient response and upper range detail. 14mm Planar + AAOI Filling out the body of Astrolith's tuning, is an updated generation of our 14mm planar magnetic driver. First seen in our renowned IEM, Supermoon, this updated version features refined mechanics and updated grille patterning. The raw strengths of this driver have been carefully and precisely shaped by our new Additive Acoustic Optical Inclusion (AAOI) housing to hone the impact, texture, imaging, and layering ranging from the sub-bass to the midrange and gracefully blending with the upper registers powered by its companion, 6mm driver. |
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AAOI Housing Campfire is proud to introduce our new Additive Acoustic Optical Inclusion housing (AAOI). This shell offers unique contributions in both performance and style. With built-in acoustic-shaping geometries, our AAOI housing contributes to the refinement and enhancement of the output of Astrolith’s dual planar magnetic drivers. These chambers are carefully engineered to create precisely controlled acoustic volumes and ensure the targeted vision for Astrolith’s sonic performance. In style, Astrolith’s shell is truly unique with the addition of its optically inclusive internal chambers within a transparent exterior. This creates a unique, gem-like effect, allowing for a changing perspective and internal visibility from various angles, appearing sleek and black at a distance, but revealing light and structure from within. |
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Particle Phase Resonator - PPR Specially designed to couple with and enhance the performance of Astrolith's new and unique 6mm planar driver, Campfire's Particle Phase Resonator is one of our smallest and most precisely engineered driver housings to date. Shaping this driver's performance was an incredible challenge from an engineering standpoint; the size and speed of this driver called for incredibly low tolerances and delicate treatment. Campfire's PPR smooths and tempers the 6mm driver while still allowing it to shine and do what it does best: create lightning fast transients, resolution, and top-end detail. |
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Advancing Pure Planar Performance
Until recently, planar drivers were deemed unsuited for IEM applications; held back by size, sensitivity and cost limitations, they were long used in over-ear headphones. However, advancements in this technology have overcome these limitations enough for them to be used in portable, in-ear applications. Now, the wonderful character and advantages of planar drivers can be brought to IEM lovers; with their unique blend of size and speed and accompanying unique sonic characteristics. Campfire's first planar IEM, Supermoon's premium, planar sound quickly became a fan favorite and became one of the most renowned planar IEMs on the market. Moon Rover set a new standard for linearity and balance in Campfire's lineup. Now, Astrolith is the modern torch-bearer of Campfire's planar evolution. |
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New 14.2mm & 6mm Planar Magnetic Drivers Astrolith blends our new 14.2mm & 6mm planar magnetic drivers in an elegant, crossoverless, tuning. Our updated 14.2mm driver has updated and improved internal mechanics alongside a new acoustic grille pattern. This driver is carefully shaped by our in-house engineering to focus this driver outputs to the low through mid frequencies. Another exciting introduction to the CA line, our 6mm planar magnetic driver brings a unique set of technical capabilities, with its lightning fast transient production and soaring high end extension up to 25kHz. This creates ultimate resolution, detail, and top-end imaging. |
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Even Diaphragm MovementPlanar driver’s serpentine voice coil is distributed evenly over the entire surface of the diaphragm which stimulates driver movement such that the driver does not warp or bend as it moves back and forth. This contributes to the drivers incredible accuracy and rapid impulse response, making each note tight and defined and avoiding smearing seen in other large, dynamic drivers. Coupling the speed and even movement of the drivers diaphragm enables Astrolith to create incredibly accurate representations of the original sound. |
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Even Diaphragm Movement Planar driver’s serpentine voice coil is distributed evenly over the entire surface of the diaphragm which stimulates driver movement such that the driver does not warp or bend as it moves back and forth. This contributes to the drivers incredible accuracy and rapid impulse response, making each note tight and defined and avoiding smearing seen in other large, dynamic drivers. Coupling the speed and even movement of the drivers diaphragm enables Astrolith to create incredibly accurate representations of the original sound. |
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Even Diaphragm MovementPlanar driver’s serpentine voice coil is distributed evenly over the entire surface of the diaphragm which stimulates driver movement such that the driver does not warp or bend as it moves back and forth. This contributes to the drivers incredible accuracy and rapid impulse response, making each note tight and defined and avoiding smearing seen in other large, dynamic drivers. Coupling the speed and even movement of the drivers diaphragm enables Astrolith to create incredibly accurate representations of the original sound. |
Just be prepared to visit the 80’s - organic and natural music, but that’s also when the software was written. Basic, works, but very basic
One of the best IEM I ever heard with combination with Luxury Precision LP6
There has already been written a lot about this wonderful set. I’ll add some subjective impressions:
I absolutely adore its warmish tuning while being super resolving and holographic with very wide stage.
It‘s a very vague and super subjective description but the MM’s have a (sorry😊) „emotional“ quality that my other sets (EE Raven, FIR RN6, CA Astrolith) don‘t have. It‘s really a complementary IEM to my little collection.
I‘m very impressed and have to give it 5 ⭐️
These do exactly what they claim to do and then some. They are simply fantastic. Finally, someone has crossed the border of "correctness" and given the people what they want. This is the Basshead IEM.
The cable of the APX SE is good enough alone.
First of all, the music sounds concentrated with a quiet background.
The low-pitched punch is also excellent.
The middle note, especially the vocal part, draws a sweet voice at a reasonable distance.
High notes are also open enough.
The more praiseworthy part is packaging.
PMG is not just providing cables, it is also repurposing all the packaging of APX SE, from leather bags to earphone cases.
Such total packaging will be hard to find at this price point.
