For sale here is an HRS 19"w x 17"d Harmonic Resolution Systems isolation base in black finish. Rated for Green Load, heavier gear, 60lbs-100lbs. Unfortunately no box or manual. Condition is 8/10 for age and small ding above name plate. Am downsizing system so this either goes in storeage or becomes yours! Was used with HRS Nimbus feet, hence the disc rings shown on the base top. Also some indication of stock feet. None of that really matters as your unit will cover over and performance is 100% HRS. Buyer will also pay shipping, I'll handle paypal fees should you make an acceptable offer. No shark attacks, please. Thanks for looking/swimming!