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SRM-500T

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Electrostatic Earspeaker Amplifier

Electrostatic Earspeaker Amplifier

The SRM-500T is STAX’s next-generation vacuum tube amplifier, developed as the long-awaited successor to the SRM-006tS after more than a decade of refinement. Combining custom low-noise DUAL FET technology with 6FQ7/6CG7 vacuum tubes, the SRM-500T delivers the signature STAX sound — exceptionally transparent, spacious and detailed, with a richer and more engaging low-mid presentation.

$3,000.00

*Local Pickup or Free Delivery Australia Wide
Built using technology inspired by the flagship SRM-700 series, the SRM-500T retains the classic STAX vacuum tube amplifier design while introducing major improvements in power efficiency and overall sonic performance. A newly developed power supply system features separate transformers for both high-voltage and low-voltage circuits, improving stability, reducing power consumption and delivering cleaner, more refined sound reproduction than previous models such as the SRM-006tS. The carefully selected low-noise DUAL FET input stage works seamlessly with the high-voltage 6FQ7/6CG7 output tubes to produce an effortlessly natural and highly resolving listening experience.

All new products come backed with full manufacturers warranty and support.

Manufacturers warranties are typically 12 months but will vary between products so please feel free to contact our team for more information.

Please feel free to reach out to us for more information. You can get in touch with one of our team members via our Contact Us page - phone or email.

Our Promise to You

At Surrounds, we want you to be absolutely thrilled with your new gear. We’re here to help, and your satisfaction is our priority.

Returns for Change of Mind

We understand that sometimes you might change your mind. We may, at our discretion, offer a return for items within 15 days of delivery. To be eligible, your item must be in brand new, unused condition and in its original, unopened packaging.

Please choose carefully, as we do not typically offer refunds for a change of mind. We may, however, provide an exchange or store credit instead. Please note that a restocking fee of up to 15% may be deducted from your credit or refund to cover our supplier costs.

You will be responsible for the cost of return shipping.

If Your Item is Faulty

All of our new products are covered by a full manufacturer's warranty, which is in addition to your rights under the Australian Consumer Law.

If you receive a faulty or damaged item, please contact us right away at info@surrounds.com.au or (08) 9389 6900 so we can get it resolved for you.

  • For a minor issue, we'll arrange a repair or replacement.
  • For a major issue, you are entitled to your choice of a refund or a replacement.

We will cover the cost of return shipping for any confirmed faulty items.

A quick note on returns

  • Please keep your original receipt or proof of purchase, as this is required for all returns.
  • If we determine the item was damaged by misuse, or if your consumer rights or warranty do not apply, you may be responsible for repair or shipping fees.

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Built using technology inspired by the flagship SRM-700 series, the SRM-500T retains the classic STAX vacuum tube amplifier design while introducing major improvements in power efficiency and overall sonic performance. A newly developed power supply system features separate transformers for both high-voltage and low-voltage circuits, improving stability, reducing power consumption and delivering cleaner, more refined sound reproduction than previous models such as the SRM-006tS. The carefully selected low-noise DUAL FET input stage works seamlessly with the high-voltage 6FQ7/6CG7 output tubes to produce an effortlessly natural and highly resolving listening experience.

All new products come backed with full manufacturers warranty and support.

Manufacturers warranties are typically 12 months but will vary between products so please feel free to contact our team for more information.

Please feel free to reach out to us for more information. You can get in touch with one of our team members via our Contact Us page - phone or email.

Surrounds offer the following assurances with every online order:

Personalised service - our team will be in contact once your order is placed to discuss timelines & logistics. We also offer comprehensive installation services and after sales support. Please feel free to get in touch to discuss any of the above before finalising your purchase.

Full manufacturer’s warranty on any new in box hardware.

7 day return of any faulty product.

Hybrid Tube Design

The SRM-500T features a newly reinforced chassis with a hybrid non-magnetic aluminium construction, helping to minimise the effects of vibration and external interference. Flexible RCA and XLR inputs allow easy integration into a wide range of hi-fi systems, while the signature STAX concentric dual volume control and RCA PARALLEL OUT outputs provide added versatility. Premium-grade electronic components are used throughout, alongside a full DC amplifier design with no coupling capacitors in the signal path for maximum purity and signal integrity. The result is a beautifully balanced sound signature that combines the warmth and musicality of vacuum tubes with the speed, openness and clarity STAX is renowned for.

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