GIK Acoustics

4A Alpha Panel

Introduced 2014$316 MSRP

The 4A Alpha Panel is GIK Acoustics' hybrid absorber/diffusor, pairing a 4-inch rigid-fiberglass broadband absorption core with a slotted wood scatter plate on the front face that diffuses mid and high frequencies while still allowing bass energy through to the fiberglass beneath. It is part of GIK's Alpha Wood Series, distinct from GIK's plain absorption panels already documented in this catalog (Monster Bass Trap, Pro Kit, Essential Kit).

MSRP

$316

Used market · Excellent

$110

-65% vs MSRP

as of Sep 1, 2026

Sell or trade this Add to my system

MSRP to used market

From $316 at launch to $110 today.

Specifications

Nrc: 1.05 (vs. ~0.4 for comparable foam products)
Weight: 8 lbs (23"x23" square); 15 lbs (23"x45.5" rectangular)
Mounting: Sawtooth hangers and self-tapping screws included, two hangers per panel
Materials: Formaldehyde-free rigid fiberglass core (ECOSE technology), solid wood box frame, 1/4" slotted scatter plate veneer
Dimensions: 23" x 45.5" x 4" thick
Manufacturing: Made in the USA
Fabric options: 9 standard GIK fabrics plus Guilford of Maine premium fabrics
Diffusion onset: Begins around 1,000 Hz via the slotted scatter plate
Scatter plate finishes: Blonde, Black, White, Grey Elm, Mahogany
Low frequency absorption: Effective down to roughly 70 Hz

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