homeRaal Ribbon Kit  



RAAL   140-15D   

 Raal 70-10 Ribbon 

RAAL  70-10 

Raal  70-20 XR OEM         RAAL  70-20XR        Raal 70-20XR rear

Raal lazy ribbon tweeter                                                            Raal Dipole Ribbon driverr 

            RAAL  Dipole-140D Ribbon                                            RAAL  Lazy Ribbon -210 

    Stones - 4  and 8 ohm taps   93db / 99 db SPL  
  for  matching     
 Low  Medium  and High SPL speakers   Factory Matched pair                 

RAAL   RIBBON     PRICE      12th   Dec  2013

       Russell Storey

Raal "Dipole 140-15D" Ribbon Driver

Raal "Dipole 140-15D" Ribbon Driver

$822.00  AUD  each         #  $1640 .00   AUD    Sold in matched Pairs

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Raal "Dipole 140-15D" Ribbon Driver

Raal "Dipole 140-15D" Ribbon Driver                    Stones   ( 8 + 4  )  ohm taps)  

$937.50  AUD  each         #  $1875 .00   AUD        Sold in matched Pairs

 4  and 8 ohm taps    NEW    for  matching     Low  Medium   OR     High   SPL speakers                      SENSITIVITY     93db  / 99 db SPL

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Raal "Original 140-15D" Ribbon Tweeter

Raal "Original 140-15D" Ribbon Tweeter

$630.00  AUD  each         #  $1225.00  AUD    Sold in matched Pairs

Raal "Original 140-15D" Ribbon Tweeter

Raal  140-15D"   AM  Ribbon Tweeter   Amorphous core transformers

$695.00  AUD  each         #  $1390.00  AUD    Sold in matched Pairs

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Raal 140-15D Replacement Ribbon

Raal 140-15D Replacement Ribbon

$70.00 AUD  each         

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RAAL 70-10D RAAL Ribbon Tweeter

RAAL 70-10D RAAL Ribbon Tweeter

$359.50 AUD  each         #  $719.00   AUD    Sold in matched Pairs



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RAAL 70-10D RAAL Ribbon Tweeter

RAAL 70-10D -AM   RAAL Ribbon Tweeter with      Amorphous Core

$424.50. AUD  each         #  $849.00    AUD    Sold in matched Pairs


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Raal 70-10D Replacement Ribbon

Raal 70-10D Replacement Ribbon

$40.00 AUD  each         

Click to view

Out of Stock. If you would like to back-order this item, please contact us.

Raal Lazy Ribbon 9" Ribbon Tweeter

Raal Lazy Ribbon 9" Ribbon Tweeter

$842.00 AUD  each         #  $1649.00  AUD    Sold in matched Pairs

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RAAL 70-10D RAAL Ribbon Tweeter

RAAL 70-20  XR          RAAL Ribbon Tweeter               (  OEM   manufacturers # only   )  apply in writing to Stones    

$545.00 AUD  each         #  $1090.00  AUD    Sold in matched Pairs

      Russell Storey


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RAAL 70-10D RAAL Ribbon Tweeter

RAAL 70-20  XR-AM       RAAL Ribb

                               RAAL RIBBON                                                          DRIVER PHOTOS

on Tweeter    with      Amorphous Core           (  OEM   manufacturers #only     )  apply in writing to Stones   

         #  $1279.00   USD      Sold in Factory  matched Pairs

     Russell Storey  

Raal 140-15D Replacement Ribbon

RAAL 70-20  XR  Replacement Ribbon

$50.00 AUD  each        Top of FormBottom of Form

images for raal ribbon




   Gallery 1


                                 DIY LOUDSPEAKER         Gallery 2








 1. Artisan R882 MTM    140-15D  - Stones Sound Studio- Australia





14: Anthony Thompson, DIY, UK. "Tarantism", Audio Technology + 140-15D








6-7: Aliante Snc, Italy. "Sylens", Audio Technology, ATD + custom 70-20XR-AM



8-9: Oswaldsmillaudio LLC, USA. Vintage RCA, drivers, AH! Horn + 140DTD or 140-15D-AM






3-4: Siltech BV, Netherland. "Pantheon XX", Audio Technology + custom 70-10D-AM


5-13: Tobias Lindell Musicproduction AB, Sweden: Custom studio monitors, custom 140-15D





12-15: Requisite Audio LLC, USA: MTMW studio monitor, Adire Audio, Scan Speak + custom 70-20XR-AM








5-13: Tobias Lindell Musicproduction AB, Sweden: Custom studio monitors, custom 140-15D








16: Lukasz Fikus, DIY, Poland. Altec Biflex +140-15D











10-11-17: RWA Akustik, Germany. Audio Technology + custom 70-20XR-AM






19-20: RAAL (Custom made) Water Drop Ribbon Tweeter




  21                Crystal Cable's "Arabesque"






Audio professionals about RAAL products and services:

(Provided by the courtesy of the signers)

I was floored the first time I hooked up the 70-10 Ribbon driver! The sound is so alive and open but without sounding harsh or distorted. The stereo image of my custom speaker systems is so very accurate and precise. It is very important to have a pinpoint sharp stereo image when recording and mixing music. The mono information should be dead center and stereo information should be where ever you place it in the mix. I use the ribbons in an active setup driven with the finest class-D amps available.
The RAAL RIBBON drivers make it easier for me to make great sounding records!

Tobias Lindell
Producer and Mix Engineer
Lindell Audio & Bohus Studios
Kungalv, Sweden

Alexander, your 140-15D is an amazing tweeter. It is the purest sounding tweeter I have ever heard. You just hear the music. Thank you for building such a wonderful loudspeaker. I have been building custom hi fi and P.A. speakers for over 35 years and I would have to say your tweeter is the most drastic step forward in sound reproduction improvements I have experienced. I am now redesigning my speakers to include your tweeter.

Peter Dix
PDS Pro Audio
Abbotsford, B.C., Canada

I have never experienced a tweeter with so consistent and smooth frequency response measured at 0.28, 1.2 and 2.2 meters. The next best measurement is Waterfall - the shortest decay time ever measured.
Thank you, Aleks, for completely engineered product and excellent workmanship.

Wally Malewicz
WAM Engineering

Hamel, MN, USA

Dear Aleksander, after years of designing and installing monitors and other equipment in state-of-the-art recording studios, your 140-15D true ribbon transducers will change the way I design Speakers. I just installed a system with the 140-15's in passive 2.5 way mid field monitors using 2 x Volt BM220.08’s. All I can say is WOW! Up until now I have only been able to use TAD or Scan Speak tweeters in studio installs. These ribbons share the better qualities of the best dynamic/horn systems with out the power compression or throat resonance. These things have NO coloration and are the most transparent drivers I have ever heard, plus none of the sizzle/distortion that folded ribbons and planar-magnetics are plagued with. I must say, I can not believe the clean SPL these things put out. They easily keep up with the Volts being driven full power with a 500 watt amp! Truly amazing!

Norman Druce
Norman Druce Audio
Owosso, MI, USA

Mr. Radisavljevic, just wanted to drop you a line to thank you for making a stellar product that seriously outperforms its dollar amount. I immediately noticed the stereo image improve. This is a stock comment for decent monitors as far as width is concerned, and I have had this experience before, but your ribbons improved the DEPTH of my stereo image! No small feat. I could hear things that I struggled to place or even hear in a dense mix in the past. They also revealed some problems as far as EQ and placement in my mixes. This is not a phenomenon I am unfamiliar with happening, but usually, weeks or months after I am finished with a record, listening on a friend’s stereo with the distance and perception time and venue provides. You make a product that not only sounds great but bends the space-time continuum! All this and I can listen to them all day with less ear fatigue. Should you find yourself in Detroit in the future, I owe you a beer.

Chris Koltay
High Bias Recordings LLC
Detroit. MI, USA

Hallo Aleksandar, we would like to thank you for making those excellent ribbon tweeters which help to take loudspeaker development to a new level.
We have to confirm that your creativeness in looking for improvements in ribbon design and your exceptional attention to detail as well in design as in manufacture do not only result in excellent measurement performance but also in an amazing sound quality.

Rainer Weber & Klaus Rottenwöhrer
RWA Akustik Systeme
Akustikbau Kaiser

Untergriesbach, Germany

Being a long time user of RAAL ribbons, I have always had considerable problems which are probably going to keep coming up in the future. It has been very difficult to find an adequate partner for them, be it mid-bass or mid units. More or less, only custom built loudspeakers can match these extremely demanding ribbons. With every new project, I face the same time consuming struggle. It often happens that, while listening to other systems without RAAL ribbons, I have to ask: “Excuse me, but are your tweeters working properly?” These ribbons are not capable of hiding or diminishing anything at all. You are able to hear the details from the recording that recording engineers certainly don’t want you to hear. Way to go, Alex! Keep revealing the truth to us in the future!

Nenad Napijalo
Founder, President
N.N. Acoustics Engineering
Belgrade, Serbia

Dear Mr. Radisavljevic, I would like to thank you for your outstanding service and exceptional ribbon drivers. After six years, developing our line of Studio Monitors, it is your expertise that allowed us to finally achieve our goals. Thank you for working so hard and for making such a difference. I look forward to many future projects.

Danny McKinney
Requisite Audio Engineering,
The Standel Amplifier Co.
Los Angeles, CA, USA

We have chosen to include the RAAL ribbon tweeters in our products , due to their excellent performances . Alexander Radisavljevic is the new "wonder boy" among ribbon tweeter designers and is to be compared to the other biggest "stars" like Dick Sequerra and Alain Benard , no if's , no but's.

Guglielmo Burger
Finaudio / Aliante /
PataAcustica / CC... /
Caterham Acoustics
Revello, Italia

Having had the opportunity to test many ribbons over the years I find the line RAAL ribbons to be the best by far. The high level of engineering that has gone into these units is immediately heard. The detail and accuracy is truly amazing.

Todd Michael
Head Speaker Designer
Yorkville Sound
Toronto, Canada

Hello Aleksandar, I have gone through about $13000.00 worth of tweeters of all types in my quest over the last 3-1/2 years. I have never liked any ribbon that I have tried before. I have found them to be dynamically constrained despite what the magazine and the do-it-yourselfers post. I have also found them to be overly bright and body-less.
Well I can say that I am going to be using your 140-15D ribbon in my reference speaker design, your creation is simply fantastic and probably the best tweeter I have yet to hear. One of the major things I hated about ribbons was their delicacy, your ribbon does away with that issue. Congratulations on doing what seemingly no other manufacturer of ribbon tweeters has been able to do.

Donald Nance Jr.
Tangent Audio LLC
Atlanta, GA, USA

Dear Aleksandar, thank you for the excellent quality tweeter, thank you for the years and years of experience needed to produce such really great quality.

Majid Jafari
R&D Manager
JTS Pro Audio Group
Tehran, Iran


Copyright © 2007 RAAL




World’s smallest form factor for a true ribbon of just 1.8 kHz cutoff frequency, reliable, able to handle a lot of power, sounding like it doesn’t exist... All that by using only one series capacitor as a complete L-R 4th order crossover at 1.8k, combining acoustical and electrical slopes, with minimum of added passive crossover components. Featuring three transformer taps for resistorless sensitivity adjustment, ribbon replacement kits, custom front plates, copper soldering posts...

All of it, makes it perfect for reaching new limits in high-end home stereo or multichannel and near-to-mid field studio monitoring applications.

It was developed according to the wishes of the most demanding manufacturers, that were looking for a quantum leap in true ribbon design.

The exact process of making it, will remain a well kept secret. Being different than anything else, including other RAAL models, 140-15D and 70-10, it is available only to manufacturers, only under previously signed Non Disclosure Agreement.

For further info on 70-20XR, please, send e-mail inquiry to, stating your company data and your position in the company. If you wish, you can include a brief description of your project. You will receive a brief .PDF datasheet, with basic measurements and data. If you find it fit for for your project, we will proceed with signing Mutual NDA and after that you can receive paid samples.

RAAL ribbon replacement and tightening - YouTube Mar 2012 - 7 min - Uploaded by acaribon
Instructional video on replacing and tightening a ribbon element in RAAL ribbon tweeters. ... RAAL ribbon