Redefy Monitor

Technicals Frequency Response - 40hz - 20khz (30hz in room) Impedance - 8ohm (7.7ohm min at 7khz)

Efficiency - 90 dB Power Handling - 150w (max. 1000w)

Dimensions - W 280mm x H 450mm x D 330mm Drivers - 28mm Neo Dome Tweeter 220mm Midwoofer

Weight - 13kg each

it will 1. 2. 3. 4. 5. 6.

 I required few specific parameters to achieve that, such as: Small box size for an 8” woofer
Controlled directivity
Low distortion

Sensitivity above 90dB
Easy on any type of amplifiers including SET.
A linear frequency response and optimum power response.

Redefy Audio Pty Ltd.

The Monitor is a 2 Way speakers consists of 1 x 220mm Redefy’s proprietary high performance woofer and 1 x 28mm dome tweeter in short waveguide built with a main goal to provide a realistic musical performance at home in a compact size. The goal is simple but

1. The Woofer

The concept is to have an 8” woofer with high sensitivity, able to work up to 3khz, goes down low to 35hz and.... works in 28L box.
It took our OEM manufacturer approximately 4-5weeks just to get back to us if it is possible to create them....

While they are one of the biggest speaker drivers manufacturer, our request is one of a kind. Then after 8 months of prototyping and few versions of them, we finally get it right!J

Brief Specifications:

  • Extended Copper Cap for very low distortion

  • NOMEX spider for excellent linearity and durability

  • Low damping surround for best transient

  • Optimized Stiff Paper Cone with 7 cuts to minimized breakup

  • CCAW voice coil to reduced moving mass

  • Very low voice coil inductance (0.28mH) for midrange purity

  • High Power motor

Microsoft Word - Redefy Monitor Presentation.docx

2. TheTweeter

We have tested more tweeters than we can remember, the task was to find a dome tweeter that satisfy our requirements as below:

  • Linear response to 20khz

  • High power motor to complement the excellent 8” midwoofer

  • Excellent controlled directivity

  • Excellent transient with low distortion down to 2khz

  • High sensitivity

    The winner is a 94dB 28mm dome tweeter with Neodymium motor on short waveguide to satisfy all of that requirements and more from Italy.

Microsoft Word - Redefy Monitor Presentation.docx

3. TheCrossover

We utilized series crossover for the Monitor, it produces excellent power response and state of the art crossover engineering to give very linear electrical impedance and phase response. Schematic

Microsoft Word - Redefy Monitor Presentation.docx

4. The Box

We believe that simple box with high quality materials and smart execution will produce an excellent enclosure for speakers.
We choose Birch Plywood as our materials as its just better sounding enclosure than MDF (typical speakers enclosure), coupled with strategized bracings scheme and we shall have an excellent sounding enclosure.

Microsoft Word - Redefy Monitor Presentation.docx

5. Specifications

Design Drive Units

Frequency Range Crossover Frequency Sensitivity
Maximum Output Nominal Impedance Dimensions


: Two Way Bass Reflex
: 220mm Paper Cone Midwoofer

28mm Dome Tweeter with Neodymium Motor : 35hz-20khz
: 2.1khz
: 90.5dB
: 108dB
: 8ohm (min. 7.7ohm @7khz)
: W 280 x H 450 x D 330mm
: A$ 2,999 for Piano Black

Australia $2,600.00  Black finish gloss

Australia $3,250.00 Ebony finish gloss