After Later Audio SUM+INV

Marsoni

M251S

$89.00

Get it in 3 business days with 1 day shipping. Friday, May 29

After Later Audio SUM+INVTwo identical channels with two inputs and two outputs. For the first output the two inputs are summed (at unity) and the second output the sum (at unity) is inverted. The second channel is identical to the first channel but it normals channel one summed output to the first input. This enables a 3: 1 configuration with both a summed and inverted output. This is a great companion to the COCO system. Width: 2hp 12V: 10mA 12V: 10mA Product Specs Item

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These are beautiful and the perfect size for the 12” wide boards I use. The lumber isn’t cut to exactly 12” so there is a slight gap in the back towards the wall which I like for cords, and the boards stay in place with bottom screws. These are very sturdy, thick, and solid. I have not had a single problem with any of them. They are easy to install and very functional. Definitely worth the cost. I have purchased a couple of times.

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Reviewed in the United States on December 28, 2024

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M.J.

San Leandro, US

★★★★★ 5

Excellent shelf brackets.

Size: 12 Inch, Color: Black

Perfect exactly as advertised. Correct measurement at 12 inches. Product supplies All the screw for mounting. High quality and very sturdy. Used in my pantry. No instructions but don’t really need.

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Reviewed in the United States on January 7, 2026

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michael borton

Fort Morgan, US

★★★★★ 5

Quality and great looking for everything.

Size: 10 Inch, Color: Black

Easy to use , and works and looks great in the garage.

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Reviewed in the United States on March 14, 2026

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Guadalupe Galan

Pawtucket, US

★★★★★ 4

Heavy duty brackets!

Size: 8 Inch, Color: Gold, Size: 8 Inch, Color: Gold

These brackets are heavy duty and came with the correct hardware. They were easy to install, the two holes were so helpful to know where to mark them. I think because they’re heavy duty you can place a good amount of weight on your shelves. The only thing I wasn’t happy with is that 4/69 of shelves, the paint was chipping but it was the perfect gold color.

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Reviewed in the United States on February 14, 2026

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Port

Fort Morgan, US

★★★★★ 5

Really nice looking work great

Size: 4 Inch, Color: Black

Great looking

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Reviewed in the United States on May 8, 2026