STAX - SRM-700S

Electrostatic Energiser For STAX Headphones

Sale price₹ 299,999 Regular priceMRP: ₹ 349,999
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DELIVERY

1. What is a Pre-Order product?
A Pre-order product is a product that we especially order for you from the brand. Once you place an order with us, we will order it from the brand for you.

2. How do I know when the product will be delivered?
There is a rough timeline on the product availability and once it has been confirmed with the brand, we will inform you.

3. Do you order the product from the brand as soon as I place the order?
We do not immediately order the product but add it in the upcoming order.

4. Will you be giving me updates?
Once we have ordered the product and have a confirmed timeline, we will give you an update.

5. I’d like to make changes to/cancel my order?
You can only cancel/make changes to your order until we place the order with the brand. Since the product is specifically being ordered for you, we will be unable to cancel/make changes once we order the product from the brand.

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7 Day Replacement Guarantee

In case you receive the STAX - SRM-700S with a manufacturing defect, please raise a return request within 7 days of delivery.

However, if you receive an incorrect / damaged / different product or one with missing accessories, please raise a return request within 24 hours of delivery. In case you receive a product with a missing, incorrect, or faulty accessory, you will be given a replacement accessory instead of the entire product.

Please make sure that the product is in the original packaging with all the accessories it came with. We'll also need an unboxing video and images of the parcel to investigate about the discrepancy. You may be asked to share images of the product and the packaging received for us to determine the damage or defect prior to approving the return request. The free replacement will be shipped only once the original order is returned.

A replacement will be issued only if:

- It is found to be defective
- It is determined that the product was not damaged while in your possession
- The product is not different from what was shipped to you
- The product is returned in original condition (with brand’s/manufacturer's box, MRP tag intact, user manual, warranty card and all the accessories therein)

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Why STAX is Special

🇯🇵

Designed in Japan

Established & Reputed

Trust us, our reputation speaks for itself 🏆!


I believe that when a brand has decades of proven excellence, you can invest with confidence knowing your purchase is backed by years of audio engineering expertise. These products come from manufacturers with extensive histories of innovation and unwavering commitment to sonic excellence. Think of them like luxury watch brands - their reputation has been earned through decades of consistent quality and innovation.


With their extensive history of innovation and countless satisfied customers worldwide, you can be confident your investment is backed by proven audio engineering expertise and industry leadership 📈.


When you see "🎖️ Established & Reputed" products, expect time-tested excellence from manufacturers who've consistently demonstrated mastery in audio engineering for generations.

Revered by Audiophiles

Audiophiles can be really picky 😤, and if the audiophile community says something sounds good, you can bet it's exceptional! I believe that earning audiophile reverence is like getting a standing ovation from music critics - it doesn't happen unless you've truly achieved something special. This audio gear has earned widespread acclaim from audiophiles worldwide, a community renowned for exacting standards and unwavering commitment to high-fidelity reproduction.


These discerning enthusiasts particularly value its extraordinary precision in sound reproduction and remarkable capability to create thoroughly immersive listening experiences. The audiophile community's endorsement carries significant weight because of their extensive experience with high-end equipment 🏆.


When you see "🙌🏻 Revered by Audiophiles" products, expect audiophile-grade excellence that satisfies even the most demanding listeners and consistently exceeds the highest standards.

🐣

Born in 1938

Why we love this DAC/Amp

I Am Worth It

For the most passionate audiophiles who demand nothing less than audio perfection 💎, these exceptional products represent the absolute pinnacle of sound reproduction technology. When I designate something in this category, it means we've identified something truly extraordinary - a piece of equipment that transcends conventional standards of excellence. Think of these as the Rolls-Royce of audio - masterpieces that don't simply meet expectations but establish entirely new benchmarks for what's possible.


These aren't just premium products; they're timeless investments in musical excellence whose value transcends ordinary performance metrics. Each represents a fundamental redefinition of what's achievable in sound reproduction, incorporating innovations and craftsmanship that justify their exclusive status.


When you see "👑 I Am Worth It" products, understand that you're experiencing audio perfection - these masterpieces cater to those who recognise that true excellence knows no compromise.

Serious Audiophiles Only

For those who have ventured deep into high-fidelity audio 🎯, the pursuit of sonic excellence becomes an endless journey of discovery and refinement. I believe that serious audiophiles demand equipment that can satisfy the most exacting standards and deliver performance that pushes boundaries. These products represent the pinnacle of acoustic engineering, incorporating advanced technologies and meticulous craftsmanship that enable them to reproduce music with utmost fidelity.


Each product has undergone rigorous evaluation to ensure it delivers exceptional performance that discerning listeners demand, from precise frequency response to impeccable detail retrieval and sophisticated sound staging. These devices incorporate premium components and engineering excellence that justify their position at the apex of audio performance.


When you encounter "🦈 Serious Audiophiles Only" products, expect uncompromising performance that satisfies the most demanding requirements and elevates critical listening to new heights.

For Audiophiles at Home

I’ve always loved the ritual of coming home, settling into my favourite chair, and firing up a dedicated setup. Gear labelled For Audiophiles at Home is made for those moments — when you can really sit back and appreciate music in its purest form 🛋️. These products tend to be more powerful, larger, and often require wall power — perfect for a stationary rig.


Here’s the trade-off: these setups often involve external DACs, amps, or full-size headphones, which means more space, more power, but also more immersive listening. They shine when used in quiet environments, where detail, depth, and dynamics can truly be appreciated.


When you see '🏠 For Audiophiles at Home' products, expect: exceptional fidelity, stronger output, and the kind of soundstage that makes you never want to leave your listening chair.

Connect With Cable

In my experience, there’s still nothing like the dependability of a wired connection when it comes to audio 🎧. I love describing it as the direct flight of music — no delays, no turbulence. When a product says “Connect with Cable,” it means you’re getting the most reliable signal path, with zero wireless compression and minimal interference.


Here’s what’s actually happening: a physical cable transmits uncompressed analog or digital signals directly from your source to your gear. This results in lower latency, no signal drops, and consistently better sound — especially when paired with a good DAC or amp. It’s ideal for critical listening, gaming, and professional use. The trade-off? You’re tethered — but for a lot of audiophiles, that’s a small price to pay for sonic purity.


When you see '🔗 Connect With Cable' products, expect: pure, uninterrupted sound quality that lets your gear perform at its full potential — perfect for focused, high-fidelity listening.

Built like a Tank

Durability concerns? Rest assured 💪.


I tend to describe these products as audio equipment that's built to survive anything you can throw at them. These headphones incorporate high-grade metal components and reinforced design elements that ensure they can handle demanding conditions while maintaining structural integrity. Think of them as the military-grade vehicles of the audio world - over-engineered for reliability and built to last decades, not just years.


The metal construction provides exceptional strength and longevity while contributing to a premium feel that serious audio enthusiasts appreciate. Whether you're a professional who needs reliable daily-use equipment or someone who values long-term investment in audio gear 🏗️.


When you encounter "🪖 Built like a Tank" products, expect unmatched robustness and durability you can count on for years of intensive use.


Why it Sounds Amazing

Power Output

I like to think of power output in audio gear like engine horsepower, it determines how much muscle your setup really has 💪. Whether you’re trying to drive a pair of power-hungry planar headphones or just want headroom for dynamic peaks, power output is the spec you want to check first.


Technically, it refers to the amount of electrical power (measured in mW or Watts) an amp or DAC/Amp combo can deliver to your headphones. More power means better control, improved dynamics, and the ability to handle demanding gear without distortion. But more isn’t always better, too much power with sensitive IEMs can introduce hiss or harshness.


When you see '🚀 Power Output' products, expect: strong driving capability, better dynamics, and optimal performance with headphones that need serious juice to shine.


Precision-Crafted SRM-700S Electrostatic Driver With Fully Discrete J-FET Configuration

STAX introduces the SRM-700S, a reference-class solid-state electrostatic headphone amplifier from STAX, embodying technical mastery and audio excellence. It features a fully discrete circuit architecture with carefully selected J-FETs at the amplification stage and a robust current emitter follower circuit for powerful, transparent output. Engineered for silence, speed, and precision, the SRM-700S promises accurate musical reproduction with remarkable micro-detail retrieval, delivering every nuance exactly as intended by the artist. The SRM-700S utilises a custom-designed, low-noise dual FET in the first stage, paired with a high-current output stage for an ultra-clean signal path. The result is an electrostatic driver that captures the finest subtleties with surgical clarity, while maintaining musical richness and emotional depth.

Uncompromising Engineering With Discrete FET, Film Capacitors & Massive Heat Dissipation

At its heart, the STAX SRM-700S features a hand-selected transistor array, designed for maximum current delivery and minimal heat retention. A large, high-efficiency heat sink ensures thermal stability and long-term durability under intense listening conditions. Complementing the circuit is the use of premium high-definition film capacitors, ensuring signal purity and consistent performance across all frequencies. Each FET undergoes meticulous matching for the left and right channels to guarantee symmetrical signal handling. The circuit is fine-tuned to deliver effortless dynamics, deep black backgrounds, and remarkable imaging.

Advanced Input Switching & EMI Shielded Volume Control With RCA & XLR Options

STAX SRM-700S includes both RCA and XLR inputs with mutual exclusion switching, allowing seamless integration with balanced or unbalanced audio setups. A parallel RCA output is also provided for system chaining. The volume control features an EMI-shielded design, preserving signal clarity even in electrically noisy environments. A convenient volume bypass switch offers flexibility when integrating the unit within larger audio systems or preamp-controlled chains.

Crafted for Vibration Control – Solid Aluminium Chassis With High-Grip Insulators

STAX SRM-700S features a newly developed large-sized aluminium insulator, combined with vibration-resistant materials and a high-friction base, provides both acoustic isolation and mechanical stability. The elegant, minimal chassis is built from premium non-magnetic aluminium, shielding the internal circuitry from unwanted environmental interference. The design is not just visually sophisticated, it’s acoustically purposeful, supporting the SRM-700S in delivering its full sonic potential.

Uncompromising Engineering With Discrete FET, Film Capacitors & Massive Heat Dissipation

At its heart, the STAX SRM-700S features a hand-selected transistor array, designed for maximum current delivery and minimal heat retention. A large, high-efficiency heat sink ensures thermal stability and long-term durability under intense listening conditions. Complementing the circuit is the use of premium high-definition film capacitors, ensuring signal purity and consistent performance across all frequencies. Each FET undergoes meticulous matching for the left and right channels to guarantee symmetrical signal handling. The circuit is fine-tuned to deliver effortless dynamics, deep black backgrounds, and remarkable imaging.

Advanced Input Switching & EMI Shielded Volume Control With RCA & XLR Options

STAX SRM-700S includes both RCA and XLR inputs with mutual exclusion switching, allowing seamless integration with balanced or unbalanced audio setups. A parallel RCA output is also provided for system chaining. The volume control features an EMI-shielded design, preserving signal clarity even in electrically noisy environments. A convenient volume bypass switch offers flexibility when integrating the unit within larger audio systems or preamp-controlled chains.

Crafted for Vibration Control – Solid Aluminium Chassis With High-Grip Insulators

STAX SRM-700S features a newly developed large-sized aluminium insulator, combined with vibration-resistant materials and a high-friction base, provides both acoustic isolation and mechanical stability. The elegant, minimal chassis is built from premium non-magnetic aluminium, shielding the internal circuitry from unwanted environmental interference. The design is not just visually sophisticated, it’s acoustically purposeful, supporting the SRM-700S in delivering its full sonic potential.

RCA Output

STAX SRM-700S features a RCA output to connect with various audiophile-grade devices.

Volume Control

STAX SRM-700S embeds a volume control to adjust volume conveniently.

All You Need To Know About The STAX SRM 700S

Output
RCA Parallel Output Terminal
Input
RCA x 1
XLR x 1
Type
All-Stage FET Configuration DC Amplification Driver Unit
Input Impedance
50k Ohms (RCA)
50k Ohms x 2 (XLR)
Frequency Response
DC – 100kHz (with one SR-009S)
Gain
60dB


Japanese Electrostatic Pioneers From 1938

Stax, founded in 1938, is a Japanese company that makes high-end audio equipment. Twenty-two years later, in 1960, Stax released their first electrostatic earspeaker, the Stax SR-1. Over the following thirty-six years, Stax produced a variety of amplification, earspeaker, tonearm, CD player, DAC, phono cartridge and loudspeaker products.

Stax is best known for its electrostatic and electret headphones, which they call earspeakers. Electrostatic headphones work similarly to electrostatic loudspeakers but on a smaller scale. In 1995, fifty-seven years after the company’s foundation, it became insolvent. The company was revived in 1996 as the new STAX company. In December 2011, Chinese loudspeaker manufacturer Edifier announced the acquisition of 100% equity in Stax.

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Manuals & Guides



User Manual | SRM-700S

Electrostatic Energiser For STAX Headphones



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