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Buchla 227e System Interface Module , $1,999.00 - Skip to Product Information

Buchla 227e System Interface Module

Quadraphonic Audio Mixer, Equalizer, and Spatialization Module, with 9 Signal Inputs, Microphone Preamp, and Spectral Tilt Function
Be the first to review Item ID: 227e
Buchla 227e System Interface Module
Buchla 227e System Interface Module

Ships From Buchla

Direct to your doorstep from Buchla to minimize delivery time. Shipping times vary, so please contact us for more information.

Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.

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Buchla 227e System Interface Module
Ships From Buchla

Direct to your doorstep from Buchla to minimize delivery time. Shipping times vary, so please contact us for more information.

Note: While most of the items we sell ship for free, this item does not qualify for free shipping due to special circumstances.
Contact us for more information

Quadraphonic Sound for Your Synth

This article was Written By

Our Product Research Team

Get to know them!

Though it would technically be accurate to call this a mixer, the Buchla 227e System Interface Module is so much more. As the name subtly suggests, this module is very much about interfacing with your entire Buchla system, making effective use of its spatial dynamics features. The 227e is designed to function as a quadraphonic mixing tool, with the full intention of managing and outputting audio into an all-encompassing sonic environment. Audio motion around the 4-channel space can be automated via control voltages to handle the rate, direction, and radius of the signal’s input. When making use of the quadraphonic functionalities, an equalizer can be applied to front and rear channels. Additionally, a spectral tilt function can be used to compensate for the high treble energy needed, alongside individual EQ masters for the front and rear zones.

"Mikes" and mixers

The cheeky-named “Mike Preamp” does exactly what it suggests — with the addition of an envelope detector, and a gain switch that is set in 15dB increments. An additional submixer provides a way to incorporate additional channels into your final mix, which includes a dedicated “in the mix” toggle to let it function as an independent submixer. To make the most out of your Buchla’s spatial audio capabilities, pick up a 227e System Interface Module from Sweetwater today and immerse yourself in your sound.

Buchla: the crossroads of sonic excellence and game-changing technology

The name Buchla is synonymous with some of the most compelling, convention-breaking technology to emerge in the musical spheres of the mid-20th-century’s electronic awakening. A pioneer of electronic music and instrument design, Don Buchla founded his namesake company in the 1960s, following the success of a modular electronic music system that was commissioned by composers on a Rockefeller Foundation grant. For the next 50 years, Don lived on the bleeding edge of electronic music synthesis. He incorporated uncommon coding languages, touch- and pressure-sensitive surfaces, and spatial location modulation, eventually innovating for the likes of Oberheim, CBS, Zeta Music, E-Mu Systems, and Moog. Meanwhile, he also dedicated himself to make good on MIDI’s promise of the 1980s to be more than just a piano keyboard controller. By the 2000s, Don introduced his magnum opus with the 200e, a love letter to a half century of unparalleled innovation in modular and analog synthesis. Today, Buchla U.S.A. works diligently to uphold Don’s rich legacy and provide his classic designs alongside new iterations of products that are “designed to introduce the unique world of Buchla synthesis to a whole new generation of electronic music makers.”

Buchla 227e System Interface Module Features:

  • Engineered for quadraphonic mixing, producing immersive sonic environments
  • Spatial dynamics functions can be controlled manually, or through control voltages, providing flexible spatialization options
  • Dedicated submixer offers dual use as both an independent submixer or an expansion of full interface inputs
  • Microphone preamp is equipped with an envelope detector and gain control
  • Note: recommended use of Buchla 3.58mm TiniCables

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.