AM8047 UAF

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emuarc
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AM8047 UAF

Post by emuarc » Thu Sep 29, 2011 5:30 am

Hi,
The AM8047 Universal Active Filter, which is a close replica of the ARP 1047 filter from the legendary ARP2500, has now successfully completed prototype trials and sounds fantastic. The module will move into production with an anticipated release date of 31 October 2011.

The 8047 is a state variable filter based on transconductance amplifiers built out of transistor arrays and fast Op Amps. There are slide pots to control 2x signal inputs, 2x CV's for FM, and 1x CV for Q control. Rotary pots for Frequency Coarse and Fine, Resonance and Notch Frequency. A slide switch to select Normal Q Response (loud and speaker spreading) or Limited (software and more controlled resonance). A LED monitors overall output level.

I will put a link up to some Sound Cloud samples over the weekend.
Rob Keeble
Owner & Designer
AMSynths

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Post by moogah » Thu Sep 29, 2011 9:42 am

:love:

Love to see all these ARP designs coming back to life!!

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brickman
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Post by brickman » Thu Sep 29, 2011 12:09 pm

O baby ! Cant wait for this one :banana:

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Jason Brock
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Re: AM8047 UAF

Post by Jason Brock » Thu Sep 29, 2011 10:00 pm

emuarc wrote:I will put a link up to some Sound Cloud samples over the weekend.
Can't wait to hear this one!

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The_Crooked_Man
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Post by The_Crooked_Man » Fri Sep 30, 2011 2:24 pm

How many hp is it going to be? Sounds like it would have to be pretty large to fit those sliders.

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Post by flashheart » Sun Oct 02, 2011 3:17 pm

21HP according to the specs, http://www.amsynths.co.uk/Products/AM8047/am8047.html
But... only 25mm deep - skiff friendly :hihi:

BTW can you explain a bit more about it, there seems to have a separate Notch frequency control?
I'm not buying a maths though, not my idea of fun...

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dan_k
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Post by dan_k » Mon Oct 03, 2011 2:17 pm

That is awesome, thanks for the update Rob!

Really looking forward to this. :party:

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Post by Brownian Lotion » Mon Oct 10, 2011 7:10 pm

Count me in for one.

My bank account hates me right now. :deadbanana:

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eXode
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Post by eXode » Fri Oct 21, 2011 9:09 am

One has my name on it! (well not really but you know what I mean). I can't wait!!! :)

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Post by Man-Machine » Fri Oct 28, 2011 4:34 pm

Count me in!

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Post by eXode » Thu Nov 17, 2011 12:12 pm

I'm not sure but I think the notch frequency works relative to the 'master' frequency so that you can offset the notch frequency in relation to the main freq.

Arturia tried to bring the 2500 filter into their 2600 emulation, that is why it has that multimode filter as well as a notch slider. I'm not saying that they succeded in the actual emulation just that they tried and maybe the behaviour of the notch on the emulation is similar to the real deal.
flashheart wrote:21HP according to the specs, http://www.amsynths.co.uk/Products/AM8047/am8047.html
But... only 25mm deep - skiff friendly :hihi:

BTW can you explain a bit more about it, there seems to have a separate Notch frequency control?

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Post by nickster » Tue Nov 22, 2011 4:55 am

Hi Rob
Could you post some demos of the AM8047 up on Sound cloud. Really interested to hear how this puppy plays. :party:

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Post by jazz411 » Tue Nov 22, 2011 5:16 am

21hp is way too big. Oh well I guess this is going to be the biggest module I have.

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Morley
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Post by Morley » Tue Nov 22, 2011 8:20 am

It was my favorite module on my 2500 system
Might grab this for old times sake!

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eXode
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Post by eXode » Tue Jan 24, 2012 3:31 am

Rob, any news/status update?

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emuarc
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Post by emuarc » Sat Jun 02, 2012 5:25 pm

The AM8047 is at prototype stage with some more work to be done on the high pass mode before its launched. Reaslistically it is going to be summer 2012 before we get this into production. It does sound very good, so this is a module we want to complete.
Rob Keeble
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AMSynths

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Post by negativspace » Mon Jun 04, 2012 2:28 am

:party:

I'm still really looking forward to this one.

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Votek_Mendo
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Post by Votek_Mendo » Tue Jun 05, 2012 12:30 am

my most anticipated filter :goo:

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Post by RobJB06 » Fri Jun 08, 2012 9:34 am

Looking forward to this one... will need a new case soon :hmm:

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Post by RobJB06 » Fri Jun 08, 2012 9:35 am

Sonically is this like an Oberheim SVF?
Last edited by RobJB06 on Wed Oct 17, 2012 4:17 am, edited 1 time in total.

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eXode
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Post by eXode » Tue Jul 31, 2012 8:46 am

emuarc wrote:The AM8047 is at prototype stage with some more work to be done on the high pass mode before its launched. Reaslistically it is going to be summer 2012 before we get this into production. It does sound very good, so this is a module we want to complete.
And then (i.e. any updates)? :)

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Post by clusterchord » Thu Sep 06, 2012 6:34 pm

when, oh when? :cartman:


and is this going to be built with hand matched transistors like the original EMU and ARP.. or its gonna use transistor arrays (like CA series etc) ?

in other words, in what ways its going to be the same and where does it stray from the original as far as parts used?



thanks


regards
Tom
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FS: Casio HT6000 8-voice hybrid, Rene 1, E370, MXR MF403 Pedal Power (PM me)

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Isolde and Isobelle
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Post by Isolde and Isobelle » Thu Oct 10, 2013 9:00 am

Just bumping this in case of any news, besides what was stated in the September 2013 update.

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Isolde and Isobelle
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Post by Isolde and Isobelle » Sat Aug 02, 2014 4:13 am

Isolde and Isobelle wrote:Just bumping this in case of any news, besides what was stated in the September 2013 update.
Er! Guess not. :hihi:

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