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Warwick Acoustics has released a new flagship electrostatic headset system APERIO. Compared with the previous flagship Sonoma Model One system, APERIO has made a lot of progress and can be described as a set of ultra-highly completed electrostatic headset systems.Compared with many more expensive electrostatic earphone systems, Warwick Acoustics APERIO has a sound performance that does not leave the wind, and compared to many split electrostatic earphone systems, APERIO''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s ease of use and completion are also higher, so if you If you want to have a full-featured and ultra-highly complete electrostatic earphone system, APERIO is undoubtedly one of your best choices.As the new flagship headphone system, it has many inheritances and improvements to Sonoma Model One. The first is the electrostatic earphone part, Sonoma Model One uses HPEL(High-precision electrostatic laminate)Drive, and APERIO uses a balanced drive HPEL drive(BD-HPEL), Can bring higher resolution and withstand greater output power. According to Warwick Acoustics, BD-HPEL has twice the offset capability, which can achieve more consistent linearity, lower distortion, and less resonance. Compared with the traditional electrostatic earphone technology, BD-HPEL solves the sound impact caused by environmental and humidity changes and is durable. In terms of bandwidth, BD-HPEL can extend the bandwidth of the headset to more than 60kHz, which can restore more treble details. APERIO uses a new structure of the diaphragm, the outer layer of the diaphragm consists of 7μMade of m biaxially oriented polypropylene, it is wrapped with a 24-carat thin gold inner layer fixed by acrylic adhesive, and the entire drive adopts a sandwich structure.In addition to the innovative design of the electrostatic headphone driver part, there are many new technologies introduced in the electrostatic headphone part of APERIO. First of all, APERIO adopts specially designed earmuffs. The special design of earmuffs can minimize the sound reflection and diffraction produced on both sides of the driver, obtain better low-frequency performance, and minimize standing waves. The entire earmuffs are made of lightweight one-piece magnesium alloy, and the ear pads are mainly made of Cabretta leather material, supplemented by an open fabric inner ring, which has a high degree of comfort. The total weight of the headset is 405 grams, and it will not feel heavy when worn on the head, and it will not feel pinched. As an electrostatic headset, the safety during operation cannot be ignored. The BD-HPEL driver uses an electrical shielding design, while the earphone also uses a grounding design, and the internal wiring also uses an insulation design. Another highlight is that APERIO''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s headphone cable uses a custom dual mono design, the outer copper-plated aramid fiber braid provides excellent shielding, and the inner conductor part has a very low self-capacitance. The flexibility of the headphone cable is quite good, and it is not easy to cause problems such as entanglement.As a complete electrostatic earphone system, APERIO''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s decoding amp part also has a high level. In terms of materials, APERIO uses 0.5% tolerance metal film resistors and 2% tolerance polymer film capacitors to obtain the best audio performance and sound quality. All circuit boards use FR-4 glass epoxy plus 2 ounces. In addition, all circuit boards are designed with six layers, so that good shielding performance can be obtained. APERIO''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s case is made of 30mm thick 6063 aluminum for CNC machining, which has good heat dissipation and shielding capabilities. At the same time, in order to avoid mechanical resonance, APERIO''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s aluminum chassis is partially interlocked and fixed together with stainless steel hardware with threaded locks.All analog circuits and circuit boards in the APERIO decoding amp section use differential balanced circuits, and all circuits use a dual mono topological structure, which can minimize crosstalk and interference between channels. The functions of APERIO''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s decoding headphone amplifier include full-featured preamplifier with line output, digital converter and headphone amplifier, as well as bias voltage“accelerator”. APERIO has a variety of input methods, including balanced and unbalanced analog, AES, S/PDIF coaxial, USB and Ethernet. The influence of the clock on sound is self-evident, and the phase jitter of APERIO''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s clock circuit is only 82 fSec RMS. In the decoding part, APERIO uses a dual mono design. Two 32-bit 8-channel ESS decoder chips placed in the shielding box can achieve an SNR of 131dB. In terms of volume control, APERIO uses dual-domain level control, that is, analog attenuators for analog and DSD signals and digital attenuators for PCM digital signals. In addition, APERIO also has a webcast function. The Ethernet is buffered by a single-channel Linux subsystem, which can achieve a PCM sampling rate of DSD256 or 384kHZ, and the digital data adopts asynchronous timing, which can reduce jitter to the greatest extent. In the amp section, APERIO uses a single-ended Class A circuit with the best sound quality, which can provide 495 Vpeak(175 Vrms)The power output is with a bias voltage of 1800V. It is worth mentioning that the power supply part of APERIO adopts 200 VA with three-level continuous power adjustment.(watt)The external switch mode power supply can completely avoid noise interference.
As an electrostatic earphone system, APERIO has a super high degree of completion. I tried APERIO with the Melco N1A-EX connected via USB, and the result was beyond expectation. Bass is the weakness of electrostatic headphones in the traditional sense, so the author conducted a special test for this. When playing back the symphony, the author thinks that the separation between the various parts of the orchestra is very good and the positioning is accurate. The treble also has a strong sense of air and energy. Generally speaking, it presents a wide and deep sense of 3D presence. The stage, and the low-frequency performance of the timpani is as shocking as thunderous. When playing back some small compilations of chamber music, APERIO once again demonstrated amazing performance, and provided appropriate instrument attenuation and excellent resolution. In the listening session, almost everything will not blend together. The author believes that classical music lovers will be satisfied with the sound field, because the tones of the instruments are almost beautifully presented, and the details are excellent. It is also worth mentioning that the wearing comfort of APERIO is very good, which is particularly important in classical music that requires long listening.
Female voice is one of the advantages of electrostatic earphone system, and APERIO can not only produce female voice very well, but also produce male voice and different types of music with the same quality. APERIO''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s vocal performance is amazing, not only lifelike, but also excellent bass performance, good texture, many details can be easily found, and can touch people''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s inner soul. Clear and transparent vocals can focus on the beauty of music, and it is easy to excite people and be attracted silently inadvertently.