InnerTube Audio Atomic Sumthang Summing Unit  From InnerTube

Summing amp from InnerTube Audio

InnerTube Audio


Retail:  $3,250.00

"Experience the Difference"

Sound Pure's 3-Year Warranty

Our Free 3-Year Warranty!
In addition to the standard included manufacturer warranty, virtually all new products carry our exclusive, industry-leading, absolutely free, Sound Pure 3-Year Warranty, which includes PARTS & LABOR. This high-value perk is our way of providing the ultimate in added value to enhance the unique personal touch our small, dedicated team contributes to each purchase.
Learn more »

Lifetime Support

Free Lifetime Technical Support!
Our small team of dedicated experts is here to help the original purchaser for the lifetime of the product. Why? Because we care about building real relationships with our customers for life and stand behind every product we sell.

No Sales Tax Outside North Carolina

Contact us for up-to-date delivery estimate.
Payments as low as $56/mo.

Want a lower price?
Get Discount

Check your email inbox now!


Our best price is too low to print,
but we'll email it to you immediately!

learn more »

How to get a lower price, instantly!

Why do we do this?

Some manufacturers have a "minimum advertised price", which restricts how low of a price we can display. By requesting an e-mail quote from us, you give us the ability to offer you a lower price than anywhere else on the web. A quote on the product will be sent instantly to the e-mail address you enter, and you can add the product to your cart at the lower price displayed in the e-mail.

Manufacturer's Description from InnerTube

Old-school analog crustaceans that we are, we at InnerTube recognize the productivity that digital audio workstations (like Digidesign Pro Tools and others) has made possible. Running the outputs through a high-quality mixing console has become a favorite best-of-both worlds solution for those who want digital flexibility and analog sound quality. But what if you don't have a large-format console, or prefer to mix "inside the box"? Well, we thought up the Sumthang just for you.


It sums eight line-level (+4) inputs into two outputs, using a top-secret vacuum tube circuit for sound quality that we think mops the floor with any other "analog" summing box on the market today. Ins and outs are transformer-balanced. Units can be cascaded together to bring as many analog outs as your DAW has into the stereo outs of your main Sumthang unit, and we've been kicking around plans for a 16-channel dedicated expander. An oversized output volume knob and super-accurate VU meters let you tweak the signal to the liking of your two-track recording or monitoring system, and even better, they look important.


More features and tech specs are coming soon. Keep checking this space or contact us, but be warned: this thing sounds so armed and dangerous that the Department of Homeland Security may notice if you click here too often!

InnerTube Audio