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home > Diffuse PRO Diagonal Square — Directional Wood Diffuser + Absorber (KK1308) > Diffuse PRO Diagonal Square — Directional Wood Diffuser + Absorber (KK1308)

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Diffuse PRO Diagonal Square — Directional Wood Diffuser + Absorber (KK1308)*** See the REAL product from our Youtube Sponsor *** The engineer's choice in the Diffuse PRO line diagonal slats steer reflections off axis, away from the listening position. Decor grade oakwood face, M1 foam core, NRC 0. 64. Directional acoustic treatment that looks like wall art. Why Diffuse PRO Diagonal Square is different Directional diffusion diagonal slats angle reflections off axis, not back at the listener. Absorber + diffuser in one panel

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product description

Why choose thelockerguy wholesale?

*** See the REAL product from our Youtube Sponsor ***

The engineer's choice in the Diffuse PRO line — diagonal slats steer reflections off-axis, away from the listening position. Decor-grade oakwood face, M1 foam core, NRC 0.64. Directional acoustic treatment that looks like wall art.

Why Diffuse PRO Diagonal Square is different

Directional diffusion — diagonal slats angle reflections off-axis, not back at the listener.
Absorber + diffuser in one panel — most acoustic panels do only one job. This one does both.
Published NRC 0.64 — absorbs ~64% of mid/high-frequency sound energy on contact.
Scattering 200 Hz – 5 kHz — breaks up flutter echo across the full speech and music range.
M1 fire-rated (Euroclass E) — meets commercial install requirements in offices, restaurants, auditoriums.
10 wood finishes — match the room you actually live or work in.

How it works — directional diffusion, in one panel

DIRECTIONAL DIFFUSION

Diagonal slats steer reflections

The angled oakwood slats break incoming sound from 200 Hz to 5 kHz and tilt the scatter pattern off-axis — so first reflections steer away from the mix position instead of bouncing straight back.

ABSORPTION

Foam core kills echo

The M1 fire-class foam behind the wood face captures mid- and high-frequency energy, cutting reverb and room muddiness on contact.

Symmetric square panels (like the standard Diffuse PRO) scatter reflections evenly in every direction. The diagonal pattern is asymmetric on purpose — engineers use it on side walls in mixing rooms, asymmetric home studios, and listening rooms to push the first reflection off-axis. Same NRC, different pattern, different job.

Specifications

SKU	KK1308
Panel size	11.5 × 11.5 × 2 in (29 × 29 × 5 cm)
Panel weight	2.2 lb (1.05 kg)
Pack sizes	6 / 12 / 24 pieces
Coverage — 6 pack	~5.5 sq ft (~0.50 m²)
Coverage — 12 pack	~11 sq ft (~1.01 m²)
Coverage — 24 pack	~22 sq ft (~2.02 m²)
Face material	Laminated MDF with oakwood veneer (10 finishes)
Core material	Acoustic foam — M1 fire class
Fire class	M1 / Euroclass E
NRC (overall)	0.64
Scattering range	200 Hz – 5000 Hz
Scatter pattern	Directional (diagonal slats)
Color options	10 wood finishes (oak veneer + MDF tones)

Acoustic performance — what the numbers mean

Diffuse PRO Diagonal is a directional absorber + diffuser. It reduces echo inside a room and breaks up flutter reflections, with the scatter pattern tilted off-axis by the diagonal slat geometry. It does not block sound transmission through a wall.

Metric	Value	What it means
NRC	0.64	Absorbs ~64% of mid/high-frequency sound energy on contact — high for a 2 in / 5 cm panel
Scattering range	200 Hz – 5 kHz	Breaks up flutter echo across the full speech and music range
Scatter pattern	Directional	Diagonal slat geometry tilts reflections off-axis — ideal for first-reflection-point treatment
Fire class	M1 / Euroclass E	Meets commercial-install fire requirements in most EU and Asian markets
STC	Not rated	STC measures wall blocking. For noise transmission between rooms, use mass — not absorption.

NRC 0.64 is the published overall figure for the foam-and-veneer assembly. Lab-measured.

What's in the box

6, 12, or 24 Diffuse PRO Diagonal panels (selected pack size)
11.5 × 11.5 × 2 in / 29 × 29 × 5 cm each · 2.2 lb / 1.05 kg per panel
Selected oakwood / MDF finish
Install guide (mounting hardware sold separately)

Install in 4 steps

Plan the layout

Lay panels on the floor. Alternate slat direction (one panel angled one way, the next mirrored) for a chevron pattern, or keep them parallel for unified motion.

Choose your mount

Construction adhesive for permanent installs. Heavy-duty 3M Command strips or Z-clips for rental-friendly mounting (panel weight is 2.2 lb / 1.05 kg each).

Mount the panels

Press firmly for 30 seconds. Start at the top of the layout and work down. Use a level for grid alignment so the diagonal pattern reads cleanly.

Aim the slats at the first reflection

For mixing rooms: orient slats so reflections steer away from the listening position. This is the whole reason the diagonal version exists. Mark mirror points and angle accordingly.

Made for

Mixing & mastering roomsSteers first reflections off the mix position — tighter stereo image without going dead.

Asymmetric home studiosSpare-bedroom rooms with weird angles benefit more from directional than symmetric treatment.

Listening rooms & home theatersCleans up the sweet spot without killing the air in the room.

Design-led commercialRestaurants, hotel lobbies, conference rooms — the diagonal motion reads as intentional design, not soundproofing.

Why Diffuse PRO Diagonal beats symmetric square panels

	Diffuse PRO Diagonal (KK1308)	Standard square Diffuse PRO (KK1247)	Plain foam panel
Absorbs echo (NRC)	0.64	0.64	0.25–0.40 typical
Scatter pattern	Directional — off-axis	Symmetric — even in all directions	None
First-reflection-point job	Best fit — steerable	Works, not directional	Absorbs only
Decor-grade finish	Oakwood, 10 finishes	Oakwood, 10 finishes	Foam only
Commercial fire rating	M1 / Euroclass E	M1 / Euroclass E	Varies / often not rated

100-Day Acoustic Guarantee

Mount the panels. Live with them for up to 100 days. If your room isn't measurably better — or if the look isn't what you wanted — send them back for a full refund. We've shipped acoustic products worldwide for over a decade. We stand behind every order.

Frequently asked questions

What does "directional" diffusion actually mean?

A symmetric panel scatters sound roughly evenly in every direction. The diagonal slats on KK1308 are asymmetric — they tilt the scatter pattern off the perpendicular axis. In a mixing room, that means you can aim the first reflection away from your head instead of bouncing it back. Same NRC as the square Diffuse PRO, different geometry, different job.

How is this different from the standard Diffuse PRO (KK1247)?

Same NRC (0.64), same scattering range (200 Hz – 5 kHz), same materials, same fire class. The only difference is the slat geometry — KK1247 is symmetric, KK1308 is diagonal/directional. Pick KK1308 for first-reflection-point treatment in asymmetric rooms, mixing positions, or anywhere the room shape isn't a perfect rectangle.

Will this block noise from my neighbor or the street?

No. Diffuse PRO Diagonal is an absorber + diffuser. It reduces echo and breaks up reflections inside a room. Blocking noise through a wall requires mass — extra drywall, mass-loaded vinyl, or a sealed door. Anyone selling a 2-inch foam panel as "soundproofing" is misleading you.

How many panels do I need?

For most home studios and offices, cover 20–30% of reflective wall area. Rough guide: small booth or office (8 × 10 ft / 2.4 × 3 m) → 6–12 panels. Mid-size studio or restaurant section → 12–24 panels. Auditorium or large room → 24+ panels (multiple packs). For mixing rooms, prioritize panels at the side-wall first-reflection points before filling out the rest of the room.

Is the wood face real oak?

The face is laminated MDF with oakwood veneer — same construction used in commercial acoustic panels and high-end furniture. Solid oak at this diagonal slat thickness would crack and cost 5× more. Veneer gives the same look at a usable weight and price.

Can I install this myself? What about rentals?

Yes. Each panel is 2.2 lb / 1.05 kg. For permanent installs, construction adhesive or screws into wall anchors. For rentals, heavy-duty 3M Command strips rated for 4–5 lb each panel, or Z-clip brackets that lift on and off. Mounting hardware is sold separately so you can match the wall.

Is this safe for commercial spaces — restaurants, offices, schools?

Yes. The panel is M1 fire-rated (Euroclass E), which meets commercial fire-safety code in most EU and Asian markets. Always confirm specific local requirements with your fire marshal or architect before installing in public assembly spaces.

How long does shipping take?

Handling 1–2 business days, then standard shipping 7–14 days to the US and most countries (free worldwide on orders $99+). Express shipping is available at checkout — 7 days or less to most destinations.

What's your return policy?

100-day guarantee. If the panels don't deliver the acoustic or visual result you expected, contact support within 100 days for a full refund. Bulk B2B / contractor orders (100+ panels) follow a separate policy — contact us before placing the order.

How do I clean the wood face?

Dry microfiber cloth for dust between the slats. Slightly damp cloth (water only, well-wrung) for the rare smudge. No solvents, no furniture polish, no spraying — the veneer and the foam core both prefer dry treatment.

Diffuse PRO Diagonal Square — Directional Wood Diffuser + Absorber (KK1308)

Name: Diffuse PRO Diagonal Square — Directional Wood Diffuser + Absorber (KK1308)
Brand: lewczuk.pl
SKU: 62071351125
Price: 115.00 USD
Availability: InStock
Rating: 4.567 (1809 reviews)