Loudspeaker & Rack Decoupling/Isolation
Herbie's Audio Lab is proud to introduce a completely new, revamped and upgraded lineup of audio loudspeaker and rack isolation feet. This new lineup of footers represents great value; only the finest materials are used, and all are manufactured and/or assembled in-house. By experimenting outside the conventional "box," we have solved several of the frustrating problems associated with traditional loudspeaker isolation, achieving new benchmarks for loudspeaker footer performance and versatility.
Fat Dots: made with Herbie's dBNeutralizer(tm)
Big Fat Dots
Square Fat Dots
Reformulated in 2012 for even better lightning-fast response, this firm yet loosely structured material is formulated specifically for blocking mechanical soundwave energies. Wide footprint gets a good grip and provides excellent lateral stability. Each Big Fat Dot supports and isolates from five to more than 200 pounds (90kg).
Big Fat Dot is 1-5/16" (33.3mm) diameter by 1/4" (6.4mm) thick. Perfect for floor-standing speakers, monitors, loudspeaker and stand decoupling, module decoupling, subwoofers, electrostatics, amplifier platforms, equipment racks.
Big, Small, Square, and X-Large Fat Dots are the same thickness and can be mixed and matched, or stacked, for unique applications. Use only as an interface between broad, flat surfaces (for use between spike and flat surface, use Herbie's Decoupling Glider or Cone/Spike Isolation Bases. For use on carpet, use Herbie's Fat Gliders.)
Fat Dots are not weight-specific. The major factor is the amount of vibration-blocking "beef" involved. Because of the wide variation of vibrational environments Fat Dots may be employed in, specific recommendations are not always possible. Various Fat Dot sizes have a lot of overlap in their capacities, so choosing between them in many cases in not critical. Standard Big Fat Dots, however, have proven to be particularly effective throughout a wide range of vibrational circumstances and loudspeaker types and is the overwhelmingly popular choice of Herbie's customers.
Big Fat Dot: $10.49 ea.
Small Fat Dot (3/4" dia.): $4.19 ea. Square Fat Dot (1.06" x 1.06" square): $8.29 ea. X-Large Fat Dot (1.5" dia.): $13.95 ea. Giant Fat Dot (1.8" dia. x 9.5mm): $19.95 ea.
Adhesive: Monitor speakers often sit on small stand plates, causing a potential for a speaker being accidently bumped off the stand. Blue Tac is a common remedy. Though achieving some isolation benefit, this material induces some linear compromises, sonically falling significantly short compared to Fat Dots.
dBNeutralizer Fat Dots are available with a speaker cabinet-friendly medium-tack adhesive applied to one side or both. Sticky Fat Dots bond the speaker/stand interface more strongly than Blu-Tac and are removable without damage to speakers, stands, or the Sticky Fat Dots.
Sticky Big Fat Dot and Sticky Square Fat Dot are the same as above (6.4mm thick), with the added adhesive not increasing overall thickness significantly. Sticky Small "Thin" Fat Dot is thinner (3.2mm thick).
Sticky Fat Dots:
Sticky Big Fat Dot (1-5/16" dia.): $12.95 ea. Sticky Square Fat Dot (1.06" x 1.06" square): $10.59 ea. Sticky Small "Thin" Fat Dot (15/16" dia.): $4.74 ea.
Von Schweikert Special: For module decoupling, eight Big Fat Dots plus two Square Fat Dots. Use four Big Fat Dots per speaker, one near each corner, with a Square Fat Dot in the middle.
Von Schweikert Special: $87.29
Ascendo C8 Special: Ten specially sized, extra-thick 35mm x 9.5mm Fat Dots, upgrade replacement for the ten rubber pucks used between a pair of Ascendo C8 speakers and stands. C8 Fat Dots can be used for other loudspeakers and other decoupling chores as well.
Ascendo C8 Special: $135.49
C8 Fat Dot (35mm x 9.5mm): $14.98 ea.
"Thin" Fat Dot
A thin layer of Herbie's dBNeutralizer material for decoupling and isolation in a moderate vibrational environment. Great as an interface between top of loudspeaker cabinet and weight. Polished granite slab, sandstone, paving block, ceramic tile, or other material placed on top of a loudspeaker cabinet or subwoofer can help to stabilize cabinet vibrations. Using "Thin" Fat Dots as an interface makes these materials even more effective and at the same time eliminates any sonic character the material might introduce.
Also great under vibration-control platforms and other general decoupling applications where a semi-firm interface is desired.
Same as Big Fat Dots above, but 1/2 the thickness (1/8").
"Thin" Fat Dot: 1-5/16" diameter.
(Small: 15/16" diameter.)
"Thin" Fat Dot: $5.19 ea.
(Small: $2.69 ea.)
Floor-Standing Loudspeaker & Rack Mobility
Floor-standing loudspeakers sometimes need mobility for room aesthetics, acoustic experimentation, social and other reasons. Conventional casters are terrible for audio applications however, because various rollers and wheel housings introduce reverberations from floor and loudspeaker vibrations, adversely affecting the loudspeakers' performance.
Loudspeakers and equipment racks scarcely need to be rolled anyway, not like a service cart at a hotel. They just need to be moved a little from time to time. Rather than rolling on wheels, an ability to slide across the floor is sufficient. Herbie's loudspeaker Gliders enable mobility on bare floors and carpeted floors while providing superb decoupling and sonic improvement. Besides general overall benefit throughout the sonic spectrum, deeply extending, linear bass with pronounced definition is the most consistently reported improvement achieved with Herbie's Gliders.
Having glider mobility makes it easier to fine-tune and maintain ideal loudspeaker positioning. Positioning, like toeing the speakers in or out just a little, moving them closer to a corner or away from a wall, has dramatic acoustical effect. Bass response, linearity and soundstage imaging are among the acoustic phenomenon addressed by speaker positioning. With any change or upgrade of components or accessories, some readjustment of loudspeaker positioning is often beneficial to bring everything up to the next level.
Special note about Gliders: when moving speakers on Gliders, always push cautiously from the bottom of the speaker cabinet or rack, not from the top.
Little Fat Glider
Herbie's dBNeutralizer Fat Dot with Magic Slider provides mobility and superb "Fat Dot" decoupling on almost any kind of smooth floor or thin, unpadded carpet. With thick dBNeutralizer pad and smooth polymer bottom, Little Fat Glider achieves a superior level of sonic perfection. Superb for loudspeakers and cabinets weighing up to about 60 pounds (27kg) on bare or thinly carpeted floor. When used for stationary support only, four Little Fat Gliders will support and isolate loudspeakers up to 100 pounds, audio racks/cabinets up to 500 pounds.
With pressure-sensitive adhesive (also available without adhesive).
Recommended to support broad, flat surfaces only; not for use under spikes.
Dimensions: 1-3/8" diameter by 1/2" high.
Little Fat Glider
Giant Fat Glider
For decoupling heavy speakers, cabinets, and racks. Herbie's extra-thick (3/8") dBNeutralizer Giant Fat Dot, embedded in a Magic Slider with smooth polymer bottom, grips the cabinet bottom (no need for screw or glue). Provides unsurpassed isolation/decoupling, holding loudspeakers vibration-free, reducing vibration-influenced distortion for the ultimate sonic enjoyment. Appropriate for loudspeakers and cabinets of virtually any weight on any bare or carpeted floor.
Perfect as a decoupling/isolation base even when mobility is not an issue.
2.36" wide by .63" tall (60mm x 16mm).
Giant Fat Glider
Cone/Spike Decoupling Glider
Loudspeaker spikes are more effective when used in conjunction with Herbie's dBNeutralizer decoupling, especially with wood or suspended floors, whether carpeted or bare. Likewise, if your spikes couple firmly to your cabinet and are themselves solid and relatively free of coloration, they will complement Herbie's Decoupling Gliders very well by easing some of the workload and making the Gliders even more efficient. (Herbie's Cone/Spike Decoupling Gliders are used under your present spikes or cones.)
Features fiberglass-reinforced dBNeutralizer(tm) decoupling base and extra-thick brass, stainless steel or titanium disk. Fitted into Magic Sliders, they can be used on virtually any kind of floor, bare or carpeted, with easy-sliding mobility. Extra-deep conical indentation prevents spike from slipping out when lateral pressure is applied. Suitable for audio racks, stands and loudspeakers of virtually any weight. 1-3/8" diameter by 1/2" tall. With speaker load, height from bottom of Glider to bottom of conical indentation is about 5/16" (8mm).
Brass: superb hi-end results with most audio systems (our default recommendation).
Stainless steel: superb hi-end results with most audio systems.
Titanium: best-looking and best-sounding results possible.
Cone/Spike Decoupling Glider
brass: $16.89 ea.
stainless steel: $18.89 ea.
titanium: $24.49 ea.
Giant Cone/Spike Decoupling Glider: Same attributes as regular Cone/Spike Decoupling Gliders described above, with more dBNeutralizer "beef" and broader base. With embedded brass, stainless steel, or titanium disk, Giant Cone/Spike Decoupling Gliders are ideal for extra-heavy duty, for severe vibrational environment, or use with speakers and component racks on deep, spongy carpet. Appropriate for use on any kind of bare or carpeted floor. 2-3/8" wide by .67" tall (conical indentation is .144" deep). With convex off-white polymer bottom.
brass: $32.89 ea.
stainless steel: $35.89 ea.
titanium: $39.85 ea.
Nifty glider replaces threaded spikes or cones for loudspeaker or rack isolation and mobility with superb lateral stability. (With an efficient decoupling approach, spikes are not really needed at all.) Fiberglass reinforced dBNeutralizer-filled vinyl base with smooth polymer bottom handles virtually any weight load on bare or carpeted floor. With jam nut to lock-in height adjustment.
8-32 (1/2" or 3/4" long)
10-32 (1/2" or 3/4" long)
1/4"-20 (1/2", 3/4", 1", 1.5" or 2" long)
5/16"-18 (1/2", 3/4", or 1" long)
3/8"-16 (1", 1.5" or 2" long)
M5 (16mm long)
M6 (16mm or 20mm long)
M8 (15mm, 20mm, or 40mm long)
M10 (25mm long)
Metric thread pitch:
M5=0.8, M6=1, M8=1.25, M10=1.5
Suitable for loudspeakers and audio racks of any weight on bare floor or carpet.
Dimensions: width: 1.3" (33.3mm) · mounted height: ≈ .4" (10mm)
Threaded Stud Glider
*(Price is slightly higher for 5/16", 3/8", M8 and M10 threads.)
Cone/Spike Isolation Bases: Use under cones or spikes on bare floor or platform.
Decoupling Spikes: Great for subwoofers, amplifier platforms, column/pillar loudspeakers
What it is:
dBNeutralizer(tm) is a proprietary composite of platinum-cured silicones with barium sulfate and silica fillers.
Big Fat Dot blocks transfer of mechanical sound energy by the following amounts (in compliance with ASTM E 90 Test Standards):
Freq: Transmission loss, dB: <20 6 ~ 18 20 16 40 19 50 22 100 23 150 20 250 24 300 23 400 26 500 27 650 29 800 31 1000 33 1250 36 1600 37 2000 39 2500 41 3200 43 4000 44 5000 43 >5000 ≥43
90-day money-back trial period. Lifetime Warranty! Herbie's isolation feet are guaranteed to improve the performance of audio and video components by reducing vibration-induced distortion. Give them a try – you'll be surprised how great-sounding your present equipment is!
Direct from the manufacturer, Herbie's Audio Lab offers low prices, high value!
Message: whats best for under thiel 1.6 speakers on wood floors
Webmaster's reply: Most of our Thiel 1.6 customers use regular Cone/Spike Decoupling Gliders under the stock spikes with excellent results.
Name: Ben Hodgetts
Message: I recently purchased a new pair of Sonus Faber Standmount speakers and stands but was having difficulty getting the stands to sit stably on the carpet.
I remembered I'd bought some brass cone/spike decoupling gliders a few years ago but had stopped using them after a component change. After searching for hours I finally found them again and put them under the Sonus Faber Stands. Result: brilliantly focused sound!
One of the things people with carpet should love about these things is that they make experimentation with speaker positioning a breeze. You can shoft toe-in and move the speakers fore and aft with ease without putting spike holes all over your carpets (which ultimately prevent fine adjustments).
A great product, period.
Message: Hi. Yesterday I got a pair of your tube dampers for my 300Bs and my preliminary impression is they turned a great system twice as good. I hear a lot more music and it is beautiful! What's your suggestion for my pair of Klipsch rf-63-s on a wooden floor? I am not sure the original spikes I use now are optimal. Also, I contemplate whether to support my svs pb-13 subs somehow. They sit directly on the wooden floor now and off course they sometimes induce rattling sounds here ad there, not always so easy to localize... Thanks for great products at very reasonable prices and superquick delivery all the way to Umeň, Sweden!
Webmaster's reply: The Klipsch speakers should do very well with a Cone/Spike Decoupling Glider under each of your spikes. Four Big Fat Dots under each sub should help considerably.
Name: George Moore
Message: The spike decoupling gliders are super under my Daedalus speaker outriggers. Better definition in the bass, nice soundstage.
Message: HI Steve
I have recently changed from bookshelf speakers on speaker stands with Big Fat Dots between them to floorstanding speakers. This is on timber floorboard. Is it possible to use the Big Fat Dots between floorstanding speakers and floor?
Webmaster's reply: Sure, Bill. Big Fat Dots are a perfect isolation/decoupling interface between floorstanding loudspeakers and bare (uncarpteted) floor. If the floor is carpeted or if you want easier mobility of the speakers, Giant Fat Gliders are ideal.
Message: I just installed the Cone/Spike Decoupling Glider on my Thiel 7.2 speakers. I am very satisfied with this product. I wish I would have had these years ago. Finally, I can move my speakers without the bases slipping off. The speakers now glide smoothly over the hardwood floor. There was also a sonic improvement.
Message: Hi Steve!
I'm looking for the best solution for my Boston Acoustics A25 2-way bookshelf speakers whose weight 4,6kg, dimensions HxWxD mm 271x183x225 mm.
Speakers are located on the chest of drawers which is a panel on which are 25mm thick.
Which one of your solutions you would recommend for best results for my speakers?
Thank you for your time!
Webmaster's Reply: Four Medium or Large Soft Fat Dots under each speaker should do very well.
Message: Hi, I use blu-tack to stick my speakers to my granite HNE Cableway stand's toplate and Perfect Sound spike shoes instead of spikes beneath the stands. The stands are on my carpeted floor with medium density underlay under the carpet. Each stand plus speakers weighs around 50 kilos. Of course being a hi fi geek I am always looking for a better sound so my question is, what would you suggest using (not spikes) in place of the Perfect Sound spike shoes and blu-tack?
Whatever you suggest must be as low in height as possible without compromising their effectiveness. Any suggestions regarding your products would be very welcome though I must say that the Perfect Sound spike shoes work very well and are a great improvement over the standard spikes I used to use with my stands as well as not damaging my carpet or floor tiles beneath.
Webmaster's reply: To bring out the best potential of your speakers, use four Square Fat Dots, or four "Thin" Fat Dots between speaker and stand instead of Blu-Tak. Between each stand and floor, four Giant Fat Gliders would be ideal, or just about any of Herbie's loudspeaker/stand isolation products.
Message: I have DifinitveTechnology BP-8080ST speaker as my mains on hardwood floors with the hardwood gliders installed that came with the speakers. Also came with spikes but didn't use the spikes because I didn't want to damage the floors. Do you think I would get better results with the cone spike decoupler with the titanium inserts using the spikes or use the gliders I have installed with your little fat gliders? Im also using a boston v2000 sub what do you recommend for it?
Webmaster's reply: You'll get best results with Cone/Spike Decoupling Gliders under the stock spikes (or, Threaded Stud Gliders in place of spikes altogether). Use four Big Fat Dots (or four Giant Fat Gliders) under the subwoofer.
Message: Hi Steve,
I would like to ask a kind advice as you know your products and what would might work best for me. I am looking a new spikes or better say the best solution for my Dali Helicon 400 MK2 LE floorstanding speakers, weight 73 lbs. Which one of your solutions you would recommend for best results (overall balance), Giant Fat Glider or Threaded Stud Glider for my case??
Webmaster's reply: Either Giant Fat Gliders or Threaded Stud Gliders should do very well. I suggest trying four Giant Fat Gliders under each speaker.--Steve
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