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HEDD Type 20 MKI Studio Monitor Pair - Used  From HEDD

Innovative "Air Motion Transformer" Tweeter design and flexible I/O cabilities make these monitors perfect for any listening environment. 


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Manufacturer's Description from HEDD

The HEDD Type 20 is a fully-fledged 3-way-system stuffed into a sleek and small footprint cabinet. It gives you the best of both monitoring worlds: convenient dimensions to easily fit the speakers into compact recording, mastering, or sophisticated home studios and the complete skill set of a full-range midfield monitoring system.

 The Type 20 is based around a strong, rubber-coated cabinet, that incorporates our self-designed Honeycomb-sandwich woofers (7“ bass / 4“ midrange) and the HEDD Air Motion Transformer tweeter for the most alive and accurate high frequency reproduction. Three 300W Class-D ICEpower modules work in the amp section of these analog speakers. The sound of this ultra-compact monitor is just magic: pristine, powerful and effortless with all the advantages you get from a dedicated 3-way-system. The Type 20 can be noted for its wonderful clarity in the midrange, offering better dynamics and an increased three-dimensionality across its sound stage. With a frequency spectrum ranging from 50kHz all the way down to 32Hz, the Type 20 can manage the most complex and challenging audio situations. It offers you analog monitoring with digital expansion at the highest level.

The Type 20 incorporates the versatlile HEDD Bridge card system. Besides standard analog connections (XLR/RCA), you can insert optional input-cards for full Dante / Audio-over-IP functionality into the free slot on the backpanel of the speaker.


»CoP« TECHNOLOGY (Closed or Ported)

Ever since there have been loudspeakers, there have been 2 different design approaches toget a good bass response: closed box design, sometimes called infinite baffle, and bass reflexspeakers, or ported designs. By offering removable plugs for the bass ports, combined withadvanced FIR (Finite Impulse Response filtering), we now give our users the choice betweenthese two worlds: A pin-point transient response / optimum accuracy (closed cabinetapproach) or the advantages of a dynamic and low-reaching bass-ported design withincreased SPL.


About Manufacturer

Physicist Klaus Heinz and his son, Mastering Engineer / Musicologist Dr. Frederik Knop founded HEDD | Heinz Electrodynamic Designs in October 2015. As acoustic professional and music enthusiast, Heinz’ life oscillates between the worlds of physics and sound. He is the founder of several renowned companies, among them loudspeaker manufacturer ADAM Audio, as whose Managing Director and Head of Research & Development he served for many years. For the past forty years, Klaus Heinz has dedicated himself to developing high-end loudspeakers that have become established constants in diverse fields: from music production processes in professional recording and mastering studios to radio broadcasting, installation and finally home HiFi, his loudspeakers can be found in a great variety of contexts. Despite their application in diverse tonal and professional contexts, Heinz’ loudspeaker designs have always stayed true to the same ideal of sonic excellence: they have, above all, always aimed to produce complete accuracy and outstanding signal fidelity while being less concerned with tinging recording audio material with pleasing tonal colors. It comes, therefore, as no surprise that the product development department at HEDD | Heinz Electrodynamic Designs is fully committed to the idea of creating versatile and surgically precise studio monitors that producers and sound engineers from a wide array of musical branches can use as tools for their audio monitoring processes. HEDD’s loudspeakers can thus be understood as the newest and most advanced products that Klaus Heinz and his team have developed over the years.


Not only are HEDD’s loudspeakers produced in Berlin, they also feature an unprecedented level of digital signal optimization (HEDD Lineariser®) and connectivity (HEDD Bridge), improved diaphragm materials as well as ultra-efficient amplifiers. Last but not least, these brand-new studio monitors take another technological step in the development of the Air Motion Transformer. Years ago, Heinz revolutionized the professional world of audio production by introducing his first Air Motion Transformer. Today, AMT systems are used wherever an extremely precise and vivid reproduction of high frequency material is called for.

The HEDD team consists of musicians and loudspeaker nerds, electrical engineers, graphic designers, and admin pros, all of whom are fully committed to the creation of this new brand.


Woofer (honeycomb diaphram):   7" (2" voice coil)

Tweeter:    HEDD AMT

Crossover frequencies (48 dB/oct filters):    250 / 3200 Hz

Input 1: analog stereo (2 ch) / Impedance:    XLR / 22 kΩ

Input 2: AES "in":    XLR

Output: AES "through":    XLR

Volume:    ±12dB

Input sensitivity (A/D modulation):    -10/-4/0/+4 dB

HEDD Lineariser®, disengageable, delay:    10 ms

Shelve filters high/low (.5 dB steps):    ± 4 dB

LF range (-3dB): normal/extended/satellite:    32/26/80 Hz

Desk Filter: Small/Medium /Large    180 Hz (-1 /-2/-4dB)

AD/DA Conversion:    96 kHz / 24-bit

Frequency response (-3dB):    32 - 40,000 Hz

Max. SPL (sound pressure level) per pair:    120 dB SPL

Power Amplifier /Universal Mains: 110-240V:    3 x 300 w/ ICE power

Cabinet with satin lacquer finish:    black

Dimensions (H x W x D):    280 x 358 x 338 mm

Weight:    15.4 kg

Warranty:    2 years