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The only fire claim here

Focusound FS0302C

Fifty one-inch foam panels with triangular grooves, 300 double-sided adhesive squares supplied, and the only fire claim on this shelf — which on foam glued to a bedroom wall is the line that matters.

Focusound acoustic foam panels, 50-pack of 12 by 12 inch tiles

Focusound FS0302C

Fifty one-inch foam panels with triangular grooves, 300 double-sided adhesive squares supplied, and the only fire claim on this shelf — which on foam glued to a bedroom wall is the line that matters.

Quantity and size
50 panels at 1 × 12 × 12 in — the largest quantity on this shelf
Profile
Triangular grooves, which Focusound states absorb noise better than a flat face
Adhesive
300 double-sided adhesive squares supplied free — six per panel
Fire
Focusound states strong fire resistance and that the foam stops burning to prevent a hidden fire hazard — the only fire claim on this shelf
Material
High-density foam. Focusound states that if it does not return to shape it can be soaked in water and air-dried
Thickness
1 in — 2.5 cm. One panel on this shelf publishes 5 cm (2 in), and its page notes thickness is what reaches lower
Absorption
Focusound publishes no NRC figure. No panel on this shelf publishes one
Air permeability
Stated as good, alongside the fire resistance
Coverage
50 square feet in total
Manufacturer reference
FS0302C
Amazon reference
B0832DPMYR
EAN
0658848729111
  • Fifty panels, the most on this shelf, with 300 adhesive squares included — six per panel
  • The only panel here to publish anything about fire, and it says the foam stops burning
  • One inch of foam treats echo and not bass, as the page for another panel here states

Best for: Covering a lot of wall at once, where the fire claim and the adhesive count matter as much as the foam.

Check price on Amazon

Specifications

Quantity and size
50 panels at 1 × 12 × 12 in — the largest quantity on this shelf
Profile
Triangular grooves, which Focusound states absorb noise better than a flat face
Adhesive
300 double-sided adhesive squares supplied free — six per panel
Fire
Focusound states strong fire resistance and that the foam stops burning to prevent a hidden fire hazard — the only fire claim on this shelf
Material
High-density foam. Focusound states that if it does not return to shape it can be soaked in water and air-dried
Thickness
1 in — 2.5 cm. One panel on this shelf publishes 5 cm (2 in), and its page notes thickness is what reaches lower
Absorption
Focusound publishes no NRC figure. No panel on this shelf publishes one
Air permeability
Stated as good, alongside the fire resistance
Coverage
50 square feet in total
Manufacturer reference
FS0302C
Amazon reference
B0832DPMYR
EAN
0658848729111

Fifty panels at 1 × 12 × 12 inches, with triangular grooves, 300 double-sided adhesive squares supplied free, and a published fire claim: strong fire resistance, and foam that stops burning.

The fire claim is why this page leads with it. Acoustic foam is open-cell and combustible, it goes up in a large unbroken area at head height, and the standard advice is to look for a flame-retardant rating before gluing it to a bedroom wall. Most listings say nothing. This is the only panel on this shelf that mentions fire at all — and the silence on the other four is as much a finding as the claim on this one.

Three hundred adhesive squares for fifty panels is six per panel, which is the right number for a 12-inch tile and a quantity nobody usually supplies. One panel on this shelf arrives with the adhesive already on the back; another is mounted with removable strips sold separately. This one supplies more than it needs, free.

The triangular grooves are the usual wedge profile, and the claim is the usual one: more surface area, better absorption at the frequencies thin foam works at.

The recovery instruction is unusual enough to repeat: if the foam arrives compressed and does not spring back, Focusound says to soak it in water for a few minutes and air-dry it. Vacuum-packed foam does arrive flat, and that is a practical answer rather than a specification.

What an inch of foam does not do is bass. The page for the thickest panel on this shelf — 5 cm (2 in) — makes the point, and so does the page for another: thin foam does nothing below a few hundred hertz, and bass problems need thickness or traps. Fifty square feet of 2.5 cm (1 in) foam is a room with no flutter echo and the same bass problem it started with.

And no NRC. Nobody on this shelf publishes one.

Fifty adhesive-mounted tiles is also fifty marks on a rented wall, which the page for another panel here records as the cost of this mounting method.

Availability

Read on the day this page was built: $40 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-07. The live price is at the top of the page.

The questions players ask

Why does a fire claim matter on acoustic foam?

Because acoustic foam is a known hazard and most listings say nothing about it. Open-cell foam glued across a bedroom wall is a large area of combustible material at head height, and the usual advice is to check for a flame-retardant rating. Focusound states strong fire resistance and that the foam stops burning rather than propagating. It is the only panel on this shelf to mention fire at all — which is worth knowing both for what it says and for what the silence elsewhere does not.

Fifty panels — how much wall is that?

Fifty square feet, or about 4.6 square meters. That covers the first reflection points of a small room with a good deal left over, and the page for another panel here makes the point that enough tiles in one order is the practical test. What it does not do is treat the room: the page for the thickest panel on this shelf notes that bass problems need thickness or traps, and an inch of foam is not either.

Instruments it is stated to fit

More acoustic treatment

  • JBER acoustic foam panels, 48 pieces, in a studio corner

    JBER Acoustic Foam (48 pieces)

    A large quantity of thin acoustic foam. It absorbs high frequencies and flutter echo effectively and does nothing at all about low frequencies — which is exactly what to expect from foam this thin.

    Quantity
    48 tiles
    Material
    Acoustic foam
    Absorbs
    High frequencies and flutter echo
    Amazon reference
    B07PB1L2ZK (identical on 6 markets)
    EAN
    0742939246295
    • Enough tiles to cover the first reflection points of a small room in one order
    • Kills the flutter echo between parallel walls, which is what makes a room sound like a bathroom
    • Thin foam does nothing below a few hundred hertz — bass problems need thickness or traps

    Best for: A first treatment pass on a small recording corner.

    ≈ $40
    Check price on Amazon
  • ROVSON high-density acoustic panels 30 by 30 by 5 cm in anthracite grey

    ROVSON Acoustic Panels 30 × 30 × 5 cm (24)

    Twenty-four high-density panels, 5 cm (2 in) thick, with adhesive supplied. The thickness is the specification that matters: 5 cm (2 in) reaches noticeably lower than the thin tiles sold in larger quantities.

    Quantity
    24 panels
    Dimensions
    30 × 30 × 5 cm (11.8 × 11.8 × 2 in)
    Density
    High density (ROVSON states)
    Included
    Adhesive
    Amazon reference
    B0D2XWQDBG (identical on 6 markets)
    EAN
    8436614640325
    • Five centimeters of high-density foam absorbs usefully lower than 2 cm (0.8 in) tiles
    • Adhesive supplied, so nothing else is needed to mount them
    • Adhesive mounting takes paint off a rented wall when removed

    Best for: A room you own, or one where the panels can be mounted on frames.

    Check price on Amazon
  • AudioSilk room kit of four large acoustic panels in natural finish

    AudioSilk Room Kit, Natural

    Four large panels rather than a grid of tiles — 46 by 23 inches each — in post-consumer recycled polyester, mounted on removable strips that leave no mark, and the only listing here to compare itself with foam.

    Quantity and size
    4 panels at 46 × 23 in — 1.17 × 0.58 m (4 × 1.9 ft) each, the only large-format panel on this shelf. Every other panel here is a 12 × 12 in tile
    Material
    Post-consumer recycled polyester, not foam. AudioSilk states no harsh chemical smell, no shrinkage and no peeling
    Versus foam
    The second bullet is titled BETTER THAN FOAM and claims much higher performance than equivalent acoustic foam — the only listing on this shelf to compare itself with its neighbors’ material
    Mounting
    Removable sticky strips, stated to leave no mark on a wall — and sold separately. The maker says so in the same bullet
    Absorption
    The first bullet reads *High density material with NRC of up to* — and the sentence ends there. No figure is published, and no panel on this shelf publishes one
    Thickness
    AudioSilk puts nothing in writing on this. Two panels on this shelf publish 0.4 in and 1 in, and one publishes 5 cm (2 in)
    Support
    Free acoustic treatment advice is offered, including how to measure room performance and where to place panels — the only placement guidance on this shelf
    Color
    Natural. AudioSilk states a range of colors is available, and two other finishes of this same kit were discarded from this catalog as color variants
    Coverage
    About 29 square feet in total across the four panels
    Fire
    AudioSilk puts nothing in writing on this. One panel on this shelf publishes a fire claim
    Manufacturer reference
    None published
    Amazon reference
    B0BQRXF5FL
    EAN
    5065015057055
    • Four large panels instead of a grid of tiles, so one wall is treated in four decisions rather than eighteen
    • Recycled polyester rather than foam, with no shrinkage, no peeling and no chemical smell stated
    • The mounting strips are sold separately, which the listing states and which means the kit does not mount as delivered

    Best for: A rented room where the panels have to come down without taking the paint, and one wall has to be dealt with in four pieces.

    Check price on Amazon

Elsewhere in the cupboard

  • GREATLINK MIDI to USB cable with in and out activity lights

    GREATLINK MIDI to USB Cable

    A 5-pin MIDI socket on one end, USB-A on the other, 16 channels, and no software to install. The cheapest route from an older keyboard into a computer, with lights that show which direction is actually passing data.

    Connection
    5-pin MIDI to USB-A — a MIDI keyboard, piano or synthesizer to a Windows, Mac or Android device (maker’s bullet)
    Channels
    16 (from the title)
    Driver
    None required — stated plug and play, no software installation (maker’s bullet)
    Indicators
    LED signal lights for MIDI input and output activity, stated to remove the guesswork from troubleshooting (maker’s bullet)
    Latency
    Described as engineered for low latency and precise timing. No figure is published (maker’s bullet)
    Stated compatibility
    Most MIDI instruments — keyboards, controllers, drum machines — with Windows 10/11, macOS and major DAWs (maker’s bullet)
    Length
    GREATLINK puts nothing in writing on this. One of the three MIDI cables on this shelf publishes a length
    Price
    $8.99 — the least expensive of the three MIDI cables on this shelf
    Manufacturer reference
    MIDI Cable for Computer 001 — a description rather than a code, which is how the maker publishes it
    Weight
    Not in the product record
    Amazon reference
    B0F9WMH1MV
    EAN
    0686585205797
    • The cheapest route from a 5-pin MIDI instrument into a computer on this shelf, at $8.99
    • Separate in and out activity lights, which turn a silent setup into a one-glance diagnosis
    • USB-A, so a laptop with only USB-C ports needs a hub or an adapter as well

    Best for: An older keyboard or synthesizer with 5-pin MIDI sockets and a computer that still has a USB-A port.

    Check price on Amazon
  • HOIGRBOM stretchy spandex dust cover on an 88-key digital piano

    HOIGRBOM HGPC15A

    A stretch cover that wraps an 88-key piano where it stands, music stand and sheet music included, and goes in a washing machine afterwards. It carries nothing and protects against nothing that falls.

    Type
    A stretch dust cover, not a carrying case. The shelf’s own scale, published on another page here, puts anything under about 5 mm (0.20 in) of padding in this category — and this cover publishes no padding at all
    Fits
    88 keys, stated for most leading brands including Yamaha, Casio, Roland, Kawai and Korg (maker’s bullet). HOIGRBOM asks that the key count be confirmed before ordering
    Material
    High-elasticity spandex, soft-touch, stated to resist friction and not scratch the instrument (maker’s bullet)
    Fixing
    Heavy-duty round elastic with an ABS cord lock, for a fit stated to stay in place without slipping, sagging or gaping (maker’s bullet)
    Coverage
    Wraps the piano, the music stand and the sheet music together, and is stated to block dust, animal hair, food residue and moisture (maker’s bullet)
    Care
    Hand or machine washable, stated to resist shrinking, fading and staining. The only item on this shelf that can be washed (maker’s bullet)
    Included
    A matching drawstring storage pouch, so the cover folds into a bag rather than a drawer (maker’s bullet)
    Padding
    HOIGRBOM puts nothing in writing on this. There is none: it is a fabric cover, and the two bags on this shelf that publish a figure give 8 mm (0.31 in) and 12 mm (0.47 in)
    Dimensions
    HOIGRBOM puts nothing in writing on this, which is why the key count is the only fit check available
    Also available
    The same cover in a 61-key size under the reference HGPC15B, at the same price
    Manufacturer reference
    HGPC15A
    Weight
    Not in the product record
    Amazon reference
    B0GT9BPJZ8
    EAN
    0649226717288
    • The lowest published price on this shelf, for the one problem a standing piano actually has
    • Covers the music stand and the sheet music with the instrument, which no bag here can do
    • It is not a case. It carries nothing and absorbs nothing, and the shelf’s own scale says so

    Best for: An 88-key piano that lives in a room and never moves, gathering dust and animal hair between sessions.

    Check price on Amazon
  • InnoGear TS186 tripod microphone stand with boom arm

    InnoGear TS186

    The only stand here whose boom changes length — 16 to 30 inches — on a tripod that reaches 228 cm (89.8 in), rotating 360 degrees on two axes, with two microphone clips and a carrying bag.

    Height range
    28.1 to 89.8 in — 71 to 228 cm (28 to 89.8 in). The two stands already here reach 158 cm (62.2 in) and about 154 cm (60.6 in)
    Boom length
    Adjustable from 16 to 30 in — 41 to 76 cm (16.1 to 29.9 in). The only adjustable boom on this shelf; the other two are fixed
    Boom movement
    Rotates 360° horizontally and vertically, and detaches — the only two-axis rotation published here
    Base
    Tripod, in thickened steel poles which InnoGear states give more stability than lighter stands
    Clips
    Two different styles supplied, stated compatible with Shure SM58, SM48 and PG58 among others — the only stand here to name a microphone
    Portability
    A carrying bag is included, and the stand disassembles into several pieces
    Thread size
    InnoGear puts nothing in writing on this. No stand on this shelf publishes a thread size, and 3/8 and 5/8 in are both common
    Counterweight
    InnoGear puts nothing in writing on this. The page for another stand here notes that a long boom needs its counterweight balanced or the stand will tip
    Weight
    1,896 g (66.9 oz) in the product record. Neither stand already here has a figure
    Manufacturer reference
    TS186
    Amazon reference
    B0C61MKJK5
    EAN
    0810015622698
    • The only stand on this shelf whose boom length adjusts — 41 to 76 cm (16.1 to 29.9 in), rather than one fixed reach
    • Reaches 228 cm (89.8 in), where the two stands already here stop at about 155 cm (61 in)
    • No thread size published, which is the one figure that decides whether a microphone fits a clip

    Best for: A room where one stand has to serve a seated desk, a standing vocal and an overhead position.

    Check price on Amazon

All acoustic treatment