STAX SR-L300 Advanced-Lambda Series Earspeaker Review: Audiophile Electrostatic Excellence

Introduction

In this STAX SR-L300 Advanced-Lambda series Earspeaker Review, we dive deep into STAX’s push-pull electrostatic marvel that elevates high-fidelity listening to a new plane. From its stainless photo-etched electrodes to the low-capacitance OFC cable and luxurious artificial leather ear pads, the SR-L300 is designed for discerning audiophiles seeking pristine detail and a natural soundstage. Ready to experience electrostatic magic? Speak with our team at The Audio Tailor today!

Design & Build Quality

The SR-L300 features tough fixed electrodes machined via stainless photo-etching, ensuring rigidity and consistency across the diaphragm. The oval sound element is housed in a rear-open, arc assembly with a stepless slider mechanism for precise head-pad height adjustment. At just 322g (without cable), the earspeaker feels feather-light, while the high-quality artificial leather pads cradle your ears for hours without fatigue.

Sound Signature and Performance

From 7Hz to 41kHz, the SR-L300 covers an exceptionally wide bandwidth with a neutral, transparent signature. The push-pull electrostatic drivers deliver rich, deep bass with no bloom, a soothing mid-range that preserves vocal intimacy, and delicate high-frequency extension that reveals micro details without fatigue. The rear-open design contributes to an expansive soundstage and natural ambience, making you feel as if the musicians are performing in front of you.

Technical Highlights

• Type: Push-pull electrostatic, oval sound element, rear open-air enclosure
• Frequency Response: 7 – 41,000Hz for ultra-low bass and shimmering highs
• Impedance: 145kΩ (including cable, at 10kHz) ideal for dedicated STAX energisers
• Sound Pressure Sensitivity: 101dB / 100Vr.m.s. / 1kHz
• Bias Voltage: 580V DC for stable diaphragm polarization
• Cable: 2.5m low-capacitance OFC parallel 6-strand, minimising signal loss

Who Should Consider the STAX SR-L300?

If you’re an audiophile invested in electrostatic technology, a sound engineer seeking reference-grade monitoring, or a dedicated home-theatre enthusiast wanting a private yet expansive experience, the SR-L300 is for you. Pair it with a quality STAX energiser or compatible high-voltage amplifier to unlock its full potential.

Discover more about the SR-L300 on our STAX SR-L300 product page and chat with Nathan, Vaughan or Isaac to customise your setup.

Pros & Cons

Pros

• Exquisite detail retrieval and neutrality
• Expansive, natural soundstage
• Comfortable artificial leather pads and lightweight frame
• Stepless head-pad adjustment for perfect ergonomics
• Low-capacitance OFC cable for pure signal transfer

Cons

• Requires dedicated STAX energiser or high-voltage amp
• High impedance – not suited to low-power headphone ports
• Rear-open design leaks sound to surroundings

Elevating Your Audio Journey with The Audio Tailor

The STAX SR-L300 Advanced-Lambda series Earspeaker sets a new benchmark in electrostatic headphone performance. If you crave resolution, a seamless frequency balance and peerless comfort, this is the upgrade your system deserves. Connect with our specialists at The Audio Tailor on 1300 308 711 or email sales@theaudiotailor.com.au to tailor the perfect high-voltage solution for your setup. Proudly serving audiophiles across Australia – let’s bring the music to life.