The Stax SRM-700S Electrostatic Headphone Amplifier delivers exquisite drive for electrostatic headphones, using advanced semiconductor technology for precise, detailed sound. A high-end energizer, it’s a perfect match for Stax’s reference earspeakers. Available at Len Wallis Audio, the Stax SRM-700S Electrostatic Headphone Amplifier is ready for audition in our Lane Cove showroom.

Why Choose the Stax SRM-700S Electrostatic Headphone Amplifier?

Launched in 2020, the Stax SRM-700S Electrostatic Headphone Amplifier is a semiconductor marvel. It pairs beautifully with the Stax SR-009S Electrostatic Headphones.

It features a fully discrete dual FET design with J-FET in both stages. AudioKey Reviews in 2021 praised its “exact reproduction of musical details,” ideal for audiophiles.

The first-stage dual FET is custom-made for low noise, below 0.01% distortion at 1 kHz. This ensures a silent background, letting every note shine with clarity.

With a frequency response from DC to 100 kHz, it captures the full spectrum. Its 450 Vrms maximum output drives even demanding electrostatics with ease.

Connecting an amplifier can feel like a wiring puzzle, can’t it? The SRM-700S offers switchable RCA and XLR inputs, plus RCA parallel output, for seamless integration.

Large aluminium insulators and vibration-proof materials keep the 6.3 kg chassis stable. This minimizes interference, delivering a pure, dynamic sound experience.

Audition the Stax SRM-700S Electrostatic Headphone Amplifier at our Lane Cove showroom. Discover why it’s a top choice for electrostatic enthusiasts seeking Japan’s exquisite drive.

Technical Specifications

• Amplifier Type: All-stage FET configuration DC amplification driver
• Frequency Response: DC – 100 kHz (with one SR-009S)
• Gain: 60 dB
• Harmonic Distortion: 0.01% or less at 1 kHz/100 Vrms output
• Input Impedance: 50 kΩ (RCA), 100 kΩ (XLR balanced)
• Maximum Output Voltage: 450 Vrms at 1 kHz
• Bias Voltage: PRO 580 V
• Output Impedance: 5 Ω (low impedance design for stability)
• Signal-to-Noise Ratio: >110 dB (A-weighted, at maximum output)
• Chassis Material: Aluminium with non-magnetic properties
• Volume Control: Precision Alps potentiometer for smooth adjustment
• Power Supply: Toroidal transformer, AC 230V, 50 Hz
• Inputs: RCA x 1, XLR x 1 (mutual exclusion)
• Outputs: RCA parallel output terminal
• Electrostatic Outputs: Two 5-pin PRO bias connectors
• Power Consumption: 46 W
• Operating Conditions: 0°C to 35°C, <90% humidity (non-condensing)
• Dimensions (W x H x D): 240 x 103 x 393 mm (including protrusions)
• Weight: 6.3 kg

Read the review here.

Elevate your audio with the Stax SRM-700S Electrostatic Headphone Amplifier at Len Wallis Audio. Browse our curated collection of Stax products here or visit our Lane Cove showroom to audition this exceptional unit. Contact us today to secure the Stax SRM-700S Electrostatic Headphone Amplifier and experience electrostatic drive at its finest.

Len Wallis Audio Excellence Promise

Since 1978, Len Wallis Audio has been a trusted name in hi-fi, curating premium audio solutions from our Lane Cove showroom in Sydney. For over four decades, we’ve selected products that deliver outstanding performance and quality.

Our focus on innovation ensures every item meets audiophile standards. Whether upgrading or building a new system, our team helps you find the ideal audio solution for your needs.

With expert guidance and a commitment to satisfaction, we make your audio journey seamless and rewarding.

Ready to enhance your setup with the Stax SRM-700S Electrostatic Headphone Amplifier?

Call (02) 9427 6755
Email Sales@lenwallisaudio.com.au
Or visit us at 64 Burns Bay Road, Lane Cove, NSW, 2066