Weekly e-mail offers: Sign up today »

Cart (800) 222-4700 Español (800) 222-4701

We recommend these great replacements:

KuSh Audio Clariphonic KuSh Audio Clariphonic
2-channel Parallel Equalizer

Retail Price: $1,749.00
Sale Price: $1599.00
Dangerous Music BAX EQ Dangerous Music BAX EQ
Stereo Mastering and Mix Bus Shelving Equalizer with Stepped Controls

Retail Price: $2,529.00
Save 14% when you buy today!
Sale Price: $2199.00
TC Electronic Finalizer Express TC Electronic Finalizer Express
Mastering Tool with Multi-Band Limiting, Normalizer, AES and S/PDIF Digital Outputs and MIDI I/O

Retail Price: $1,695.00
Save 38% when you buy today!
Sale Price: $1059.00
Chandler Limited TG12413 Zener Limiter Chandler Limited TG12413 Zener Limiter
Vintage-style Limiter with 11 Position Attack, 21 Position Release, Side-chain, and Compression Settings

Retail Price: $5,250.00
Save 10% when you buy today!
Sale Price: $4725.00

View all Mastering »

Drawmer Three-Sum (No Longer Available)

Item ID: ThreeSum

Multiband Split/Summing Device

Sorry, the Drawmer Three-Sum is no longer available. We've left this page up for reference only. Check out the great alternatives on this page or call toll-free (800) 222-4700 to speak with a Sweetwater Sales Engineer about similar products.

From Our Research Team:

Premium-quality Multi-band Dynamics Proccesor

The Drawmer THREE-SUM opens up a whole new set of options allowing the engineer to split the audio into two or three bands and apply his or her own sonic signature to each part of the audio bandwidth.

Drawmer THREE-SUM Processor at a Glance:
  • The benefits of multi-band dynamics processing
  • Variable threshold brick-wall limiting
  • Effective for both mastering and track processing
  • Applicable in high-end mastering facilities and project studios alike

The benefits of multi-band dynamics processing
The benefits of multi-band processing, with the ability to apply different parameters to different sections of the audio bandwidth have been apparent to sound engineers for quite some time. However, "locking in" your audio to any one specific multi-band unit can vastly reduce your creative options. The desired combination of processing to deal with low-frequency energy, the vocal midrange and high-frequency detail and enhancement is not necessarily available from any one manufacturer. The Drawmer THREE-SUM is the answer.

Variable threshold brick-wall limiting
The THREE-SUM employs a high-quality signal path culminating in a variable threshold, brick wall limiter section with bypass facility. To ensure transparency the limiter design is "two stage," applying different processing to the high-frequency content of the material. In applications where the dynamics of the material need to be retained to create an open sound, the limiter is essential for catching peaks.

Drawmer THREE-SUM Processor Applications Include:
  • Mastering
  • Stereo Sweetening
  • Bass Tracks
  • Drum Tracks
  • Voice Smoothing

Applicable in high-end mastering facilities and project studios alike
The THREE-SUM has been designed for use in high-end mastering and general recording applications. It can also transform a project studio, equipped only with "single-band" processors, into a serious multi-band facility.


Drawmer THREE-SUM Processor Features:
  • Continuously Variable Band Splitting
  • Switchable Mute & Bypass On Each Band
  • Variable Threshold, Two Stage Brick Wall Limiter Section
  • 2- Or 3-band Operation
  • VU Metering With +10dB Re-Scale Mode For Hot Output Levels
  • Variable Input & Output Levels
  • Individual Band Or Multi-Band Processing
  • High Quality, Minimal Signal Path With Balanced XLR Inputs/Outputs

Three-Sum Image Gallery

Specification Detail
Manufacturer Part Number THREE-SUM
What Does "Special Order" Mean?
A special-order product is one that we don't normally keep in stock. We order it from the manufacturer as soon as you order from us. We have great relationships with all the manufacturers we carry, so we can get your special order to you as fast as or faster than anyone else. Remember that special orders are non-returnable and non-cancelable, so make sure the item is right for you. A Sweetwater Sales Engineer can help you decide - call (800) 222-4700 for assistance!

Can We Help?

call toll-free (800) 222-4700 or E-mail us
to get personalized advice from a Sweetwater Sales Engineer.

Additional Online Resources:

  • Discuss this product!
    Ask questions, get answers about the Drawmer Three-Sum in Sweetwater's Control Room Forum.

Be the first to review this product

See Also: Drawmer , Drawmer Mastering

Our Customers Say...

When it came time to start from scratch with the studio, I had a lot of questions. The Sales Engineers I've worked with are really friendly and patient, and the guidance they provided was invaluable; they basically helped build the studio.
Joel Hurd, Canton, NY

Sweetwater Sound Inc.
5501 U.S. Hwy 30 W
Fort Wayne, IN 46818
Get Directions »

Toll Free (800) 222–4700
Español (800) 222–4701
Local (260) 432–8176
Fax (260) 432–1758
E-mail us

Phone & Retail Store Hours:
9–9 Monday–Thursday
9–8 Friday
9–7 Saturday
(All hours listed are
Eastern Standard Time.)

© 2012 Sweetwater Sound Inc. All rights reserved. Please read our Terms of Use and Privacy Policy. Links | Press Releases