HRS S3 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 S3 Isolation Base is a highly innovative design that eliminates noise, revealing a new level of musical performance.

It is manufactured from seven different materials including a proprietary resonance control stage with billet machined aircraft aluminum trim and a new plinth construction that increases plinth mass by 7 pounds, an additional 16 percent over the previous S1 Isolation Base design.

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 new 51 lb S3 (1921 size) plinth construction is manufactured by laminating in a vacuum press alternating layers of high density fabric reinforced resin and non magnetic stainless steel plates on both sides of a decoupled mass energy dissipation core system. The very top skin of the S3 plinth is the same high quality scratch resistant surface layer used in the R3X Isolation Base providing an identical cosmetic match. The S3 also uses the same primary isolation stage of the reference level M3X model and thus provides exceptional performance and a great performance value.

The broadband noise reduction system in the S3 is optimized to the weight of your component. The weight range can also be easily modified in the future to keep your system operating at peak performance. The low profile 3-inch high compact design also minimizes space requirements and keeps the visual focus of your system on the component. The S3 Isolation Bases can be used on any surface or audio stand and integrates directly into any of 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 S3 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 offers hundreds of custom designs in the 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: S3-1719
  • Dimensions: 17″ x 19″ x 3″
  • Base Weight: 42 LB
  • Orange Load Range: 0 – 30 LB (0 – 13.8 KG)
  • Red Load Range: 31 – 50 LB (13.9 – 22.8 KG)
  • Green Load Range: 56 – 95 LB (25.2 – 43.3 KG)
  • Blue Load Range: 96 – 150 LB (43.4 – 68.0 KG)

  • Model: S3-1921
  • Dimensions: 19” x 21” x 3”
  • Base Weight: 51 LB
  • Orange Load Range: 0 – 25 LB (0 – 11.5 KG)
  • Red Load Range: 26 – 45 LB (11.6 – 20.6 KG)
  • Green Load Range: 46 – 85 LB (20.7 – 38.7 KG)
  • Blue Load Range: 86 – 140 LB (38.8 – 63.5 KG)
In stock! Usually ships within 24 hours.
Availability: Please allow 4 weeks for fulfillment