Recommended for medium to large areas like concert halls, gymnasiums and churches, rooms with pronounced low frequency problems or where sonic accuracy is mandatory and maximum acoustic absorption is required.

The 4" Studiofoam Wedge-24 provides three times the low-end control of the 2" Studiofoam Wedge-24 and can effectively tame even the worst sonic anomalies. In some instances, using 4" acoustic Studiofoam can lessen the need for significant dedicated bass trapping.

Anechoic wedge cut offers superior sound absorption

Three times as absorbent as 2" Studiofoam at lower frequencies

Can provide a relatively dry, anechoic-type sound in any size room

Consistency of cut minimizes visible seams

Class B flame retardancy

Will not crumble with age

Related Questions and Answers

Q: 1. Does a rain cover come with the pack?

A: The Think Tank Photo BackLight Sprint Camera Backpack (Woodland, 15L) does come with a rain cover.

Q: 2. It could fit 70-200 attached and sigma 14mm f1.8 which is huge lens , and another tiny stuff?

A: I hace 70-200, 85mm,50mm 1.4 20-35mm and 5D mark II in this bag

Q: 3. Will it fit a Fujifilm GFXr with an attached 30mm lens and a 50mm lens?

A: The 5L will be too small. The 6L is smallest I'd go, and that would be a little tight. The 10L would be the best option.

Q: 4. Will the Photo Turnstyle 20 hold a Nikno D750, 24-120, 14-24, and 70-200 f/4?

A: The simple answer is No. With the camera body attached to 70-200 f/4 hardly, there would be any room to accommodate another lens. At the best one can try to place 14-24 but with a lot of struggle.

Q: 5. Can you fit a 13” laptop into this pack?

A: The Think Tank Photo BackLight Sprint Camera Backpack (Woodland, 15L) doesn't have a separate pocket to fit a 13" laptop so you can't fit a laptop along with cameras and lenses.

Q: 6. Can I fit 24 oz water bottle in this bag?

A: It depends on the shape of the bottle and what other items you have in in the Think Tank Photo TurnStyle 20 Sling Camera Bag V2.0 (Charcoal). The interior of the bag is, 15 x 8.3 x 4.8" / 38.1 x 21.08 x 12.19 cm.

Q: 7. Will this hold a nikonD3200, 20mm, 50mm , 85mm lens and flash?

A: If at least one of those lenses is connected to the body, this bag can hold all those items.

Q: 8. I'm looking to carry a Canon R5 w/ Promediagear "L" bracket attached and RF 14-35mm f4, RF 24-105mm f4 and RF70-200 f4 and an extra battery and flashlight. Is this combo possible for this bag?

A: Think Tank Photo TurnStyle 20 Sling Camera Bag V2.0 (Charcoal) BH #THT20V20CSCH is not large enough to carry the Canon R5 with all these lenses.

Q: 9. Can this bag fit Olympus E-M1 M2 with 40-150 lens attached?

A: It can do so easily. If you are only carrying that and not a 9.7 tablet, you might consider this smaller sling Think Tank Photo TurnStyle 10 V1 Sling Camera Bag (Blue Slate) B&H # THTS10BS.

Q: 10. Can this backpack accommodate a Nikon Z8 with a 180-600 attached?

A: Yes. The Think Tank Photo BackLight Sprint Camera Backpack (Charcoal, 15L) will fit the Nikon Z8 with the 180-600mm lens attached.