Exploring the nuances of high-fidelity sound, one encounters the Stax SR-X9000, an impressive manifestation of electrostatic headphone technology known for its impeccable audio reproduction. The detail and clarity that these headphones provide allow for a deep dive into the layers of one’s favorite tracks, revealing subtle elements that typically remain hidden with conventional audio equipment. It's an auditory journey through the landscape of sound, where each frequency is presented with striking definition.

Paired with the SR-X9000 is the IFI audio Pro IESL, a capable energizer that ensures these sophisticated headphones are powered to deliver their full sonic potential. It’s an essential piece of the high-fidelity puzzle, facilitating the delivery of clean and consistent audio. In alliance with the Pro IESL, the Stax SRM-717 amplifier serves as the backbone of this setup. Known for its stability and precision, the SRM-717 underscores the experience by offering a steady hand to guide the electrostatic performance to its fullest expression, ensuring that every listening session is as rich and engaging as a live performance.

by: an_2a3

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Nuances of Electrostatic Headphones

IFI audio Pro IESL

The Stax SRM-717 is a solid-state headphone amplifier designed specifically for electrostatic headphones. It is engineered to deliver high-quality audio reproduction with exceptional speed and clarity. Featuring a fully DC-coupled signal path, the SRM-717 eliminates the use of capacitors in audio pathways, resulting in a more direct and transparent sound. The architecture is built primarily on a current domain amplification design, which facilitates a rapid response and extended frequency range. The amplifier's first stage functions as a voltage-controlled current sink, with a subsequent stage transitioning to a current-controlled voltage source, culminating in a constant current sink in the last stage. This design approach reduces the Miller Effect, thus enhancing high-frequency performance. With a low output impedance of approximately 25 ohms, it is well-suited to drive electrostatic headphones, and it achieves a total harmonic distortion of under 0.02%. The amplifier can handle voltages up to 800 volts peak-to-peak, allowing for loud output levels suitable for electrostatic models like the Omega series. With its compact and robust build, the SRM-717 is appreciated for its reliability and sound fidelity, making it a compelling choice for serious audio enthusiasts looking to drive advanced headphone technology.

SRM-717

The Stax SR-X9000 is a flagship electrostatic earspeaker that incorporates advanced technologies for an unparalleled listening experience. It features the newly developed MLER-3 (Multi-Layer Electrodes) fixed electrode technology, which consists of a four-layer design combining mesh and conventional etching electrodes. This allows for a rigid structure that significantly reduces resonance and enhances sound transmission characteristics compared to traditional designs. The diaphragm utilizes ultra-thin engineering film, which is 20% larger than that of the previous model, SR-009S, providing a lightning-fast reaction speed and a broad frequency response. The SR-X9000 boasts a frequency response range of 5 - 42,000Hz and an impedance of 145kΩ, with a sound pressure sensitivity of 100dB, operating on a bias voltage of 580V DC. Its construction features a tough machined aluminum enclosure to eliminate unnecessary vibrations and enhance acoustic clarity. Additionally, the guard mesh is uniquely designed to control reflections, ensuring smoother sound wave flow. The earspeaker is equipped with genuine leather ear pads, improving comfort and sound isolation, while its stainless steel arc assembly enhances durability and fit. Included are ultra-pure annealed copper and silver-plated cables, available in two lengths, and it is packaged in a wooden case made from paulownia wood for optimal storage.

SR-X9000

This HiFi setup is a notable example of combining select audio components for an exceptional listening experience. Central to its performance is the Marantz SR4300 preamp, chosen for its ability to render sound with warmth and intricate detail. The speakers are powered by Alesis RA150 power amps, recognized for their clear and powerful output. For vinyl enthusiasts, the setup features the Hitachi HT-41S turntable, adding a vintage flavor to the audio journey. Complementing these components is a tube buffer SD-CD3, which enhances the sound with its smooth and nuanced character.

A standout feature of this setup is the use of Philips 9710M/01 8" full-range drivers. These drivers are highly regarded for their open baffle design and their ability to produce a natural and expansive soundstage. They replace the previous Teac NXT speakers for mid-high frequencies, offering a richer and more detailed audio experience. 

by: audiiophile_small_room


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A Unique HiFi Audio Setup

Teac NXT upgraded with Philips 9710M/01 8"

The Marantz SR 4300 is a home theater receiver that was introduced in the early 2000s. It features Dolby Digital and DTS surround sound decoding, multiple audio inputs, and the ability to drive multiple speakers for a true surround sound experience.

SR 4300

The Alesis RA-150 is a power amplifier designed for professional audio applications. It delivers 75 watts per channel at 4 ohms or 50 watts per channel at 8 ohms, making it suitable for use with studio monitors or small PA systems. It features balanced XLR and unbalanced RCA inputs, and includes binding post and 1/4-inch speaker outputs. The RA-150 also has front panel volume controls and LED indicators for power, signal, and clip. It is a reliable and affordable option for amplifying audio signals.

RA-150

The Hitachi HT-41 is a direct drive turntable that features a combination of quality engineering and design aimed at delivering reliable performance in vinyl playback. It is equipped with a high-torque motor system, ensuring stable rotational speed and minimal wow and flutter, crucial for accurate audio reproduction. This model supports both 33 1/3 RPM and 45 RPM record speeds. The platter is made of heavy material to further enhance stability and reduce vibrations during playback. The tonearm is typically adjustable, allowing for fine-tuning to suit various cartridge types and weights. Additionally, the HT-41 may include a built-in phono preamplifier, providing versatility in connectivity to various audio systems. It is designed with a sleek aesthetic that complements modern audio setups while maintaining functionality. Overall, the Hitachi HT-41 serves as an excellent choice for those exploring the world of vinyl records.

HT-41

Pure McIntosh setup. Sounds amazing. The only issue is OEM cable which is too long but looks blessing.

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McIntosh headphones tube setup

McIntosh Laboratory, Inc., often referred to simply as McIntosh, is an esteemed American brand renowned for its high-quality audio equipment. Founded in 1949 in Binghamton, New York, McIntosh has established itself as a pioneer in the high-fidelity audio industry. The brand is synonymous with enduring build quality, aesthetic elegance, and unparalleled sound performance, making it a choice of audiophiles and music enthusiasts worldwide.

Known for its distinctive design, McIntosh products feature signature black glass front panels, aluminum end caps, and the iconic "McIntosh Blue" watt meters, which have become a symbol of audio excellence. Their product range encompasses a wide array of audio equipment, including amplifiers, preamplifiers, speakers, turntables, and other audio accessories, each crafted with meticulous attention to detail and acoustic perfection.

McIntosh's dedication to producing high-quality sound reproduction is evident in their use of advanced technologies and precision engineering. Their products are often the result of extensive research and development, ensuring that they not only meet but exceed industry standards.

In addition to sound quality, McIntosh is committed to the longevity and durability of its products. Many McIntosh units from decades past are still in use today, a testament to their build quality and the company's commitment to sustainability through longevity.

Whether for home audio systems, professional studios, or luxury car audio, McIntosh provides an audio experience that is both immersive and emotionally engaging, offering a level of performance that is as close to the original recording as possible. Their legacy and ongoing innovation continue to set the standard in high-end audio, making McIntosh a prestigious and revered name in the world of hi-fi audio systems.

McIntosh

The McIntosh D150 is a digital audio preamplifier that combines advanced digital processing technologies with the classic McIntosh design ethos. It features multiple digital inputs including USB, coaxial, and optical connections, allowing for flexibility in source selection. The D150 includes an integrated DAC (Digital-to-Analog Converter) that is capable of handling high-resolution audio files, supporting formats up to DSD64 and PCM resolution of 24-bit/192kHz. Its design includes a 6.35mm headphone output with a dedicated headphone amplifier built-in, and it also features balanced and unbalanced outputs for connecting to power amplifiers or active speakers. The preamplifier is housed in a sleek chassis with a distinctive glass front panel and illuminated logo, characteristic of McIntosh’s aesthetic. The D150 is often praised for its user-friendly interface, allowing easy navigation through its various settings and inputs via an intuitive remote control, as well as an app that can facilitate control from mobile devices. With its mix of modern technology and classic McIntosh styling, the D150 aims to appeal to audiophiles and casual listeners alike.

D150

The McIntosh MHP1000 is a closed-back headphone designed to deliver high-quality audio reproduction. It features a clear and precise sound signature, which some reviewers have noted as slightly bright, especially in the high frequencies. While it is appreciated for its ability to reproduce details and clarity on well-recorded tracks, opinions vary on its overall value compared to competitors in the same price range. Some users argue that its build quality feels plasticy and not as robust as expected at its price point, which is around $2000. The design incorporates technology similar to that of other high-end brands, and while it has received praise for specific music genres like traditional jazz, it may not cater to those who prefer a more bass-forward sound or a broader soundstage. Reviewers have compared it to other headphones, suggesting alternatives like Beyerdynamic and Audeze for different listening preferences.

MHP1000

The McIntosh MHA200 is a compact vacuum tube headphone amplifier designed to enhance the listening experience for headphone enthusiasts. It features a compact footprint of 6-1/8" (15.6cm) wide by 9-1/8" (23.2cm) deep, making it easy to integrate into various setups. The MHA200 is powered by a pair of 12AT7 and 12BH7A dual triode vacuum tubes, providing low distortion and a rich audio experience. It employs Unity Coupled Circuit output transformers, a technology that has been at the core of McIntosh products since its inception in 1949, ensuring high-quality sound delivery. The amplifier supports a wide range of headphone impedances, with four selectable ranges from 32 to 1,000 Ohms at a power output of 500mW. It includes various connectivity options such as balanced inputs and outputs, and multiple headphone output configurations, catering to different headphone types. Additionally, it features a polished stainless steel chassis that not only serves a functional purpose but also adds aesthetic appeal. The MHA200 is equipped with volume and LOAD controls for optimal listening personalization.

McIntosh headphones tube setup

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Nuances of Electrostatic Headphones

A Unique HiFi Audio Setup