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Neumann KH 870 2 x 10-inch Powered Studio Subwoofer (ea) Certified Open Box , $4,419.15 each - Add to Cart Skip to Product Information

Neumann KH 870 2 x 10-inch Powered Studio Subwoofer (ea) Certified Open Box

Item ID: KH870d1
Neumann KH 870 2 x 10-inch Powered Studio Subwoofer (ea)
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Neumann KH 870 2 x 10-inch Powered Studio Subwoofer (ea) Certified Open Box

Stellar Sub for Surround and 3D Mixing

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Producers and engineers working with 7.1 HD systems and 3D productions have a lot to love in Neumann's KH 870 subwoofer. This powered sub sports a pair of 10-inch drivers along with eight channels of all-analog connectivity to fit comfortably into modern studios, with 4-mode LFE-channel processing, fourth-order crossovers, and plenty of onboard controls to fine-tune your sub's sound to perfection. Neumann pulled out all the stops to make the KH 870 one of their highest-performing subs to date — top-quality drivers pair with a cabinet designed with Low Resonance Integral Molding materials for incredible sonic accuracy with zero unwanted resonance and distortion. The optimizations are far from ending, as an in-house-designed long-throw composite cone bass driver breaks up distortion at high volumes and high-capacity bass reflex ports cut down on compression while offering lightspeed transient response. Sweetwater producers appreciate the KH 870's wide-spanning compatibility that comes courtesy of its 7.1 High Definition Bass Management, which is ideal for everything from mono to 3D systems, with a bypass-capable fourth-order 80Hz active crossover for even greater versatility. Accuracy, depth, and power: add the Neumann KH 870 subwoofer to the toolkit and harness all this and more for yourself!

Neumann KH 870 2 x 10-inch Powered Studio Subwoofer Features:

  • 2 x 10-inch, 8-channel powered studio subwoofer with wide compatibility
  • 7.1 High Definition Bass Manager allows for use with practically any system, from mono to the latest 7.1 HD setups (remote controllable)
  • 116.7dB maximum SPL with deep 18Hz bass response
  • 4-mode LFE-channel processing, fourth-order crossovers, and a wealth of controls fine-tune your sound to any room and setup
  • Long-throw composite sandwich cone bass driver dampens break up at high volumes; speedy transient response courtesy of flow-optimized bass reflex ports
  • Balanced analog XLR I/O
  • Chassis constructed from Low Resonance Integral Molding materials ensures no unwanted resonances or distortions affect your sound
What is Certified Open Box Gear?

At Sweetwater, we're so picky that what we call "Certified Open Box" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

Certified Open Box (also known as a demo) means we’ve had it out of the box for our YouTube channel, displayed at events, tested in our studio, or maybe it was in a customer’s hands for a few days and isn’t ‘factory fresh’ as a result. Every Certified Open Box item we sell has Sweetwater’s 2-year Total Confidence Coverage™ warranty and has been tested and verified up to ‘new’ specs by our factory-authorized technicians to make sure it’s in perfect working order before we ship it to you.

When you buy a Certified Open Box item at Sweetwater, you get:
  • 2-year Total Confidence Coverage Warranty™!
  • Products inspected and tested by our factory-authorized techs, guaranteed to function like new (or better)!
  • FREE shipping on most items
  • Equipment that will MEET or EXCEED your expectations!

Click HERE to browse our current inventory of Certified Open Box equipment. Purchasing Certified Open Box gear from Sweetwater is a smart and safe way to save!

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.