HRS R3X Isolation Base


This item qualifies for our new in-store fulfillment incentive program. Orders over $250 placed online and picked up in-store are now eligible for your choice of a complementary vinyl LP or Burmester Audio CD (up to a $40 retail value) upon pickup. We're excited to welcome you to our showroom!

”The R3X Isolation Base is the latest version of a design derived from our S1 Isolation Base. It has the same broad band isolation system used in our reference level M3X Isolation Base and shares 60% of the plinth construction with our high performance S1 Isolation Base. The R3X top and bottom plate is made from a new custom HRS non resonant plate material that increased the mass density of the R3X by 28% over the previous R1 Isolation Base Design. These design improvements allow the R3X to offer more of the performance achieved by its very ambitious siblings.”
-Michael Latvis, Chief Engineer, Harmonic Resolution Systems Inc

Note: Once your order is received, we will contact you to obtain your component information. This allows us to ensure the proper load level for your equipment.




The R3X Isolation Base is a highly innovative design that eliminates noise, revealing a new level of musical performance. It is manufactured from five different materials including a proprietary resonance control stage and billet machined aircraft quality aluminum trim.

The R3X load range is matched to the component weight for maximum performance just like our high performance S1 and reference level M3X design. The R3X can also be modified in the future to preserve initial investment. This is a unique product that offers customers true Harmonic Resolution Systems performance that is derived from a decade of experience creating industry leading designs.

The broadband noise reduction system in the R3X maximizes performance and is highly effective on a wide range of surfaces and structures. The low profile compact design also minimizes space requirements.

The R3X Isolation Bases integrate directly into the HRS audio stand frames.


Once your order is received, we will contact you to obtain your component information. This allows us to ensure the proper load level for your equipment.

The R3X Isolation Base is produced in two standard sizes and is available in a black or silver finish. Each size can be purchased in any of the four different load ranges to optimize component performance.

If one of the standard sizes or load ranges does not fit your needs, HRS also offers hundreds of custom designs in th M3X Isolation Base product line, including custom designs for all large turntables and amplifiers.

Contact us for assistance with custom Isolation Bases for your components.

  • Model: R3X-1719
  • Dimensions: 17″ x 19″ x 3″
  • Base Weight: 24.5 LB
  • Yellow Load Range: 0 – 35 LB (0 – 16.0 KG)
  • Red Load Range: 36 – 60 LB (16.1 – 27.4 KG)
  • Green Load Range: 61 – 100 LB (27.5 – 45.6 KG)
  • Blue Load Range: 01 – 155 LB (45.7 – 70.3 KG)

  • Model: R3X-1921
  • Dimensions: 19” x 21” x 3”
  • Base Weight: 30.0 LB
  • Yellow Load Range: 0 – 30 LB (0 – 13.8 KG)
  • Red Load Range: 31 – 55 LB (13.9 – 25.1 KG)
  • Green Load Range: 56 – 95 LB (25.2 – 43.3 KG)
  • Blue Load Range: 96 – 150 LB (43.4 – 68.0 KG)
In stock! Usually ships within 24 hours.
Availability: Please allow 4 weeks for fulfillment