Thursday, 21 October 2021

A-Ha! Annerstedt-Hegge Acoustics A2

 SpeakerFilters is very pleased to announce a new direction for our design work.

At the Horten Hifi Show in Norway, on 6-7 November 2021, A-Ha will launch their brand new speaker, the A2 - a fresh from the ground-up design concept that brings some new ideas to the high quality speaker market.

This is a first time collaboration for SpeakerFilters with a manufacturer, and we're very much looking forward to the feedback from listeners at the Horten Show.

A first listening report by Audiophile.no can be enjoyed here.

A-ha say:

"A2 is developed according to our basic principle of Full Dimensional HiFi. This means that:

The speaker's Power Response (the sum of the acoustic power emitted 360 ° around the speaker), or more simply all frequencies measured in all directions around the speaker, best represents how a speaker sounds in an acoustically well-balanced room; in our case a regular listening room.

The speaker has minimal Group Delay, ie it reproduces the music correctly in time. Each pulse is reproduced exactly at the same time in time, regardless of frequency content.

No Power Compression, ie lack of compression of the signal due to the impedance of the elements increasing with temperature (when playing loud) or requiring too much power from the amplifier to reproduce dynamic processes.

A2a is a variant powered by external amplifiers from an active Linn Exakt filter programmed with A-HA's software developed by Speakerfilters in Wales.

A2aa is an active speaker with three built-in output stages with automatic sensing for on / off and input stages as well as three 450W Eigeintakt class D amplifiers developed for us by Boxem in Luxembourg.

A2ap is an active-passive hybrid that has a built-in active crossover filter and a 500W amplifier in the base and a passive filter for medium and treble."

Thursday, 2 September 2021

Linn Ninka with Hiquphon OW2 Tweeter - Exakt Filters

 

For some time, Hiquphon's rather fine OW2-92 tweeter has been favoured as an upgrade or replacement unit for those speakers for which the original tweeters are no longer available. Speaker such as Katan, Ninka and Keilidh have often been equipped with OW2-92.

Whilst these drivers are a good match in a passive system with its large phase errors and crossover approximations, in an Exakt system, a more precise match is required.

Therefore SpeakerFilters is very pleased to announce the latest in a range of Exakt filters designed specifically for the OW2-92 tweeter in classic speakers - the evergreen Ninka floorstander.

These filters are available now for £195 a pair.

Get in touch!  design@speakerfilters.com

Every SpeakerFilters set of filters comes with a no cost 2 week trial period.  

Below is the frequency response of Ninka with OW2 tweeters (please ignore the reading below 100Hz where room effects can be seen)


 

Linn Ninka with Hiquphon OW1 Tweeter - Exakt Filters

For some time, Hiquphon's rather fine OW1-92 tweeter has been favoured as an upgrade or replacement unit for those speakers for which the original tweeters are no longer available. Speaker such as Katan, Ninka and Keilidh have often been equipped with OW1-92.

Whilst these drivers are a good match in a passive system with its large phase errors and crossover approximations, in an Exakt system, a more precise match is required.

Therefore SpeakerFilters is very pleased to announce the latest in a range of Exakt filters designed specifically for the OW1-92 tweeter in classic speakers - the evergreen Ninka floorstander.

These filters are available now for £195 a pair.

Get in touch!  design@speakerfilters.com

Every SpeakerFilters set of filters comes with a no cost 2 week trial period.  

Below is the frequency response of Ninka with OW1 tweeters (please ignore the reading below 100Hz where room effects can be seen)



Saturday, 14 August 2021

LINN Katan with Hiquphon OW2 Tweeter Exakt Filters

For some time, Hiquphon's rather fine OW2-92 tweeter has been favoured as an upgrade or replacement unit for those speakers for which the original tweeters are no longer available. Speaker such as Katan, Ninka and Keilidh have often been equipped with OW1-92.

Whilst these drivers are a good match in a passive system with its large phase errors and crossover approximations, in an Exakt system, a more precise match is required.

Therefore SpeakerFilters is very pleased to announce the first in a range of Exakt filters designed specifically for the OW2-92 tweeter in classic speakers - the evergreen Katan standmount.

These filters are available now for £149 a pair.

Get in touch!  design@speakerfilters.com

Every SpeakerFilters set of filters comes with a no cost 2 week trial period.  

 




Wednesday, 2 June 2021

LINN Katan with Hiquphon OW1 Tweeter Exakt Filters

For some time, Hiquphon's rather fine OW1-92 tweeter has been favoured as an upgrade or replacement unit for those speakers for which the original tweeters are no longer available. Speaker such as Katan, Ninka and Keilidh have often been equipped with OW1-92.

Whilst these drivers are a good match in a passive system with its large phase errors and crossover approximations, in an Exakt system, a more precise match is required.

Therefore SpeakerFilters is very pleased to announce the first in a range of Exakt filters designed specifically for the OW1-92 tweeter in classic speakers - the evergreen Katan standmount.

These filters are available now for £149 a pair.

Get in touch!  design@speakerfilters.com

Every SpeakerFilters set of filters comes with a no cost 2 week trial period.  

 



Monday, 18 January 2021

Mission 78x - Complete Surround System Exakt Filters

Adding to your choices for Linn Exakt, we announce a fourth full non-Linn speaker 5.1 system is now possible with Exakt thanks to the work of SpeakerFilters.  Using a combination selected from Mission 783 Aerogel Floorstander, Mission 782 Aerogel Floorstander, Mission 781 Aerogel standmount, Mission 780 Aerogel standmount and Mission 78cse Aerogel centre speakers, plus a sub of your choice (including Mission subs) you can surround yourself with Exakt music and movies even when you're not a Linn speaker user.


So we're very pleased to add this exciting new development to the SpeakerFilters portfolio. Bundle pricing for 5.1 systems is available.

  
Get in touch!  design@speakerfilters.com

Every SpeakerFilters set of filters comes with a no cost 2 week trial period.  

We also offer physical conversion of your speakers. 

781
78cse
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782

783

780


Mission 78cse Aerogel Filters

SpeakerFilters are pleased to announce a new addition to the range of available filters.

From Cambridge company Mission, the 78cse Aerogel centre speaker contributes to an Exakt surround sound system, in a 3-way configuration (mid-bass, outer tweeters, centre tweeter).

We're very pleased to add this speaker to the SpeakerFilters portfolio, bringing the opportunity to apply Linn Exakt advantages to those who want to get the best out of their Mission 78x series speakers in a surround sound system.  The filters are available to 78cse Aerogel users "off the shelf" right now.  We can also make the physical changes to the speaker, if required.

Other filters available in the Mission 78x series include 783 Aerogel, 782 Aerogel, 781 Aerogel and 780 Aerogel offering a wide range of combinations from which a surround system can be configured.

For those of you without Exakt, but with a Linn DS or DSM streamer, the work completed by SpeakerFilters allows you to enjoy the benefits of SPACE Optimisation with the 78cse Aerogel in its passive form.

Get in touch!  design@speakerfilters.com

Every SpeakerFilters set of filters comes with a no cost 2 week trial period.  
We also offer physical conversion of your speakers.

 

 
 



Please note that early versions of this speaker (the 78c) were fitted with Keraform mid-bass drivers which suffered from ferrofluid leakage and subsequent failure.  The SpeakerFilters Exakt filters are designed using the later Aerogel mid-bass driver which is reliable and is said to sonically outperform the original driver.  The Keraform driver is a pale dull grey, the Aerogel is glossy mid blue in appearance.

Saturday, 2 January 2021

Mission 772e Exakt Filters

 SpeakerFilters are pleased to announce a new addition to the range of available filters.

A tall standmount loudspeaker from Cambridge company Mission, the 772e is tremendous value for money and a great introduction to the world of Exakt - in stereo or as part of a surround sound system.

We're very pleased to add this speaker to the SpeakerFilters portfolio.  Bringing the opportunity to apply Linn Exakt advantages to those who want to get the best out of their Mission 772e speakers.  The filters are available to 772e users "off the shelf" right now.  We can also make the physical changes to the speaker, if required.

For those of you without Exakt, but with a Linn DS or DSM streamer, the work completed by SpeakerFilters allows you to enjoy the benefits of SPACE Optimisation with the 772e in its passive form.

Get in touch!  design@speakerfilters.com

Every SpeakerFilters set of filters comes with a no cost 2 week trial period.  
We also offer physical conversion of your speakers.

 


Saturday, 19 December 2020

Mission 781 Aerogel (1999 to 2004) Exakt Filters

 SpeakerFilters are pleased to announce a new addition to the range of available filters.

A substantial standmount loudspeaker from Cambridge company Mission, the 781 standmount hails from the turn of the century.

We're very pleased to add this speaker to the SpeakerFilters portfolio.  Bringing the opportunity to apply Linn Exakt advantages to those who want to get the best out of their Mission 781 speakers.  The filters are available to 781 users "off the shelf" right now.

For those of you without Exakt, but with a Linn DS or DSM streamer, the work completed by SpeakerFilters allows you to enjoy the benefits of SPACE Optimisation with the 781 in its passive form.

Get in touch!  design@speakerfilters.com

Every SpeakerFilters set of filters comes with a no cost 2 week trial period.  
We also offer physical conversion of your speakers.

 


Please note that early versions of these speakers were fitted with Keraform mid-bass drivers which suffered from ferrofluid leakage and subsequent failure.  The SpeakerFilters Exakt filters are designed using the later Aerogel mid-bass driver which is reliable and is said to sonically outperform the original driver.  The Keraform driver is a pale dull grey, the Aerogel is glossy mid blue in appearance. 

Monday, 20 July 2020

SpeakerFilters Can Measure Your Speakers for Linn "SPACE" Room Optimisation

Linn publish a list of speakers that are compatible with their SPACE Optimisation technology which helps to take the effect of the room from your listening experience.  To take advantage of this, you can select these speakers from a list with the Konfig software used to configure your Linn DS or DSM.

SpeakerFilters has worked with a number of clients to add their speakers to the list available from Linn.  If your speakers are not on the list from Linn, reach out to speaker filters and we can work to have them published for you.  Contact us via design@speakerfilters.com

More details on how to add your speakers to the SPACE list are here

Meanwhile, these are the speakers measured by SpeakerFilters and currently available in Konfig:

Linn have already published the following speakers measured by SpeakerFilters:

ATC SCM50 SL/ASL
ATC SCM100 SL/ASL
Gauder Akustik Isophon Corvara
Graham Audio LS 5/8
Graham Audio LS 5/9
Graham Audio LS 5/9f
Hallworth TAJ A4
Heybrook HB3 Mk1
Killer Keltiks
Koto Audio Nindex
Mission 750 Limited Edition 
Mission 77c1 Landscape
Mission 77c1 Portrait 
Mission 771e 
Mission 773e
Mission 78cse Landscape
Mission 780 Standmount (1997 to 2002)
Mission 782 Floorstander 1999-2004
Mission 783 Floorstander 1999-2004
Mission 790
NAD 8200
Naim SBL
PMC Twenty.21
PMC Twenty.C
PMC TB2+
Q Acoustics Concept 20
Tannoy Mercury M3 Ported
Tannoy Mercury M3 Bunged
Totem Model One Signature
Vienna Acoustics Bach 
Wharfedale 85th Anniversary Linton
Wharfedale 85th Anniversary Denton 
Wilson-Bensch Precision 1.0 Bookshelf

You can find the full list availabe on the Linn website.