The Stax SRM-500T Valve Electrostatic Headphone Amplifier offers a charming, tube-driven sound for electrostatic headphones, blending precision and warmth at an accessible price. An ideal entry into Stax’s valve energizers, it delivers a balanced listening experience. Available at Len Wallis Audio, the Stax SRM-500T Valve Electrostatic Headphone Amplifier is ready for audition in our Lane Cove showroom.

Why Choose the Stax SRM-500T Valve Electrostatic Headphone Amplifier?

Launched in 2021, the Stax SRM-500T Valve Electrostatic Headphone Amplifier is a hybrid design. Offering a gateway to electrostatic audio.

Compared to the Stax SRM-700T, which uses 6SN7 valves for a warmer, richer tone, the SRM-500T features 6FQ7/6CG7 valves for a slightly brighter, more balanced sound. AudioKey Reviews in 2021 called it a “beacon” for newcomers, noting its charming musicality.

It uses a custom dual FET input stage with noise below 0.01% distortion at 1 kHz. The 6FQ7/6CG7 valve output stage ensures a transparent, detailed sound with a touch of warmth.

With a frequency response from DC to 90 kHz, it captures a wide audio spectrum. Its 340 Vrms maximum output drives electrostatic headphones with ease and precision.

New to electrostatics and feeling overwhelmed? The SRM-500T’s simple setup, with switchable RCA and XLR inputs, makes diving into this world a breeze.

A new low-voltage winding transformer improves efficiency by 10% over its predecessor, the SRM-006tS. This upgrade enhances sound clarity while keeping power consumption low at 38W.

Audition the Stax SRM-500T Valve Electrostatic Headphone Amplifier at our Lane Cove showroom. Discover why it’s an ideal choice for audiophiles seeking balanced electrostatic charm.

Technical Specifications

• Amplifier Type: FET input + vacuum tube output hybrid DC driver
• Input Stage: Custom-made low-noise dual FET
• Output Stage: 6FQ7/6CG7 dual triode valves
• Frequency Response: DC – 90 kHz (with one SR-L500 MK2)
• 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: 340 Vrms at 1 kHz
• Bias Voltage: PRO 580 V
• Signal-to-Noise Ratio: >105 dB (A-weighted, at maximum output)
• Inputs: RCA x 1, XLR x 1 (mutual exclusion)
• Outputs: RCA parallel output terminal
• Electrostatic Outputs: Two 5-pin PRO bias connectors
• Power Supply: Toroidal transformer with low-voltage winding, AC 230V, 50 Hz
• Power Consumption: 38 W
• Warm-Up Time: Approximately 30 seconds with amber LED indicator
• Operating Conditions: 0°C to 35°C, <90% humidity (non-condensing)
• Chassis Material: Aluminium with non-magnetic properties
• Volume Control: Double-axis 4-gang Alps potentiometer
• Dimensions (W x H x D): 195 x 102 x 376 mm (including protrusions)
• Weight: 3.4 kg

Read the review here.

Elevate your audio with the Stax SRM-500T Valve 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-500T Valve Electrostatic Headphone Amplifier and experience electrostatic sound 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-500T Valve Electrostatic Headphone Amplifier?

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