Jupiter 8 Filter by AMSynths

Jupiter 8 Filter by AMSynths by Point Source
"Just a small demo of this great filter by AMSynths."

AMSynths at SuperBooth 2021

video upload by AMSynths

"AMSynths launch re-imagined AM8012 VCF at SuperBooth 2021"

The Prague - New Analog Mono Synth Coming from AMSynths

video by AMSynths

"AMSynths are launching a new analog mono synth called the Prague in May, and here is a video with its features."

AMSynths: AM8109 Test Movie - DIY Roland Jupiter-8 VCF Module

YouTube via amsynths | August 06, 2010

"AM8109 Jupiter 8 VCF"
http://www.amsynths.co.uk/

Amsynths AM8171 Quad Sequential Switch

video upload by O.Z. Hall

"When Roland developed the System 100M they created a quad signal gate module, the 171, which also had a ton of multiples. The AM8173 module contains the same four signal gates built with modern components, and an onboard LFO clock, making it a very useful sequential switch, for both audio and CV signals.
This video is NOT sponsored/compensated by Amsynths. The following is NOT an affiliate link.
Here is a link to the module: https://www.amsynthstore.co.uk/produc...

TIMECODE
0:00 - Introduction
0:30 - Installation (in my System 55)
1:28 - Detailed look at Inputs/Outputs/Controls
3:00 - Use Case 1 - Single Gate
4:10 - Use Case 2 - Two Gates - alternating with Sequential Clock
8:28 - Use Case 3 - Audio or CV Multiplexor - Event Sequencer or CV Modulation Sequencer
9:57 - Conclusion
10:26 - Bonus footage"

AMsynths AM8071 Snow Fall VCF

AMsynths AM8071 Snow Fall VCF from Mike Lynch on Vimeo.

"The First half of this video is an 'On The Run' style sequence with direct audio. The second half of the video unfortunately takes audio from the built-in camera microphone and shows the Snow Fall filter being modulated by a Make Noise MATHS."

Check out Mike Lynch's latest release on MATRIXSYNTH-C here.

AMSynths Update & AM108 Jupiter-8 / Jupiter-4 Filter

I just received the AMSynths newsletter. The latest news is that the AM8319 Ring Wraith will be in production in early January, and the AM8005 Filter Cube, AM8047 UAF and AM8027 VCO will follow. The newsletter also mentioned their current modules which you can find on their website.

The one module I realized I haven't posted yet is their AM108 Jupiter-8 and Jupiter-4 filter pictured here.

"This module is replication of the Low Pass Filter from the legendary Roland Jupiter 8 and 4. This is a 2 and 4 pole OTA design that Roland first used in the Jupiter 4 in 1980, replacing a discrete version of the filter which took up more PCB space.

This is a warm sounding filter with smooth frequency control and a resonance that gradually increases up to full self oscillation, a sound very reminiscent of the early 1980's.

The difference between 2 and 4-pole modes is not dramatic, with the 2-pole mode providing a more gradual cutoff slope and silky sound."

Other modules in development include:

AM8012 ARP2600P transistor VCF
AM8027 ARP2600P VCO
AM8044 Cascade LPF and HPF
AM8047 ARP2500 Universal Active Filter
AM8475 Odyssey VCF and HPF
AM8706 Titan Modulation Source
AM8280 CS80 Dual SVF
AM8104 Roland JP VCF + HPF"

New AMSynths AM8109SE Low & High Pass Jupiter 8/4 Filters Eurorack Module

"This module is replication of the Low Pass and High Pass Filters from the legendary Roland Jupiter 8 and 4. This is a 2 and 4 pole OTA design that Roland first used in the Jupiter 4 in 1980, replacing a discrete version of the filter which took up more PCB space.

This is a warm sounding filter with smooth frequency control and a resonance that gradually increases up to full resonance, just before self oscillation, a sound very reminiscent of the early 1980's. The original Jupiter 8 filter did not self oscillate, and we have retained this configuration. However the customer can set the filter to self oscillate by adjusting a PCB trimmer on the rear of the module.

The difference between 2 and 4-pole modes is not dramatic, with the 2-pole mode providing a more gradual cutoff slope and silky sound. The high pass filter provides a gradual cutoff of low frequencies.

The AM8109SE is a new version of the 2010 AMSynths design, with slide potentiometers and a skiff friendly module depth of 35mm.

Eurorack Module: 14HP wide
User Manual: AM8109 Quick Start Manual

This module is an accurate reproduction of the Jupiter 8 low pass voltage controlled filter, using the AS3109 OTA chip in the filter core, as well as the high pass filter that uses an AS662 chip. The design has been updated to use modern components with high quality capacitors in the signal path. It delivers a very warm and smooth sound.

There are front panel sliders for adjusting the Cutoff Frequency and Resonance of the low pass filter, and level control of 3x control voltages (MOD, ENV and KYBD) and 2x audio signal inputs. The high pass cutoff frequency is adjusted using a rotary potentiometer with an original Boss coloured control knob.

There are five 3.5mm jack sockets at the base of the black anodised 2mm front panel;
2x audio inputs
3x control voltages
1x audio signal output
There is an audio output jack at the top right of the module. The slope of the filter can be switched between 2 and 4 poles using a small slide switch, and the envelope CV signal can be inverted using a second slide switch.

The module comes with a set of M3 mounting screws and washers, and a standard Doepfer power cable."

AMSynths 100m Modules deeper Review (8111, 8120, 8131, 8132, 8133, 8141, 8171 & 8176)

video upload by Knobs & Switches

"höre is my deeper review about the 100m Modules from AMSynths. Complete Synthvoices with VCO, VCF, VCA, Sequential Switch, etc..."

AMSynths SUPERBOOTH Module News - April 2022

"Getting Ready for SuperBooth 22

We are hard at work developing new modules for launch at the best synth show of the year - Superbooth 22. We will be announcing the red faced AM8101 filter [posted here], a replica of the low pass filter in the Roland SH-101, as well as the AM8102 SH-2 style filter [below].

The AM8109 and AM8060 Jupiter filters are being relaunched - 10 years after they were introduced, with Special Edition and slim 10HP versions. AMSynths will also be announcing SH-101, Jupiter 6 and 8 VCO's to pair with these filters alongside the current Jupiter 4 VCO and VCF."

This module is faithful replica of the filter from the legendary Roland SH-2 that was released in 1979. The AM81012 is a fantastic sounding 4-pole low pass filter with that unmistakable Roland filter sound in a narrow skiff friendly, Eurorack module.

The module use an Alfa Rpar AS622 chips in the filter core (BA662 clones) and high quality polpropylene filter capacitors. The design includes buffering Op Amps to interface to Eurorack modular levels. The filter does not have Q compensation but the signal level does not decrease dramatically with higher Q settings. The resonance is smooth and controllable into self-oscillation, and the filter will oscillate from 20Hz to 20kHz.

There are slide potentiometers (with LED's) for adjusting the Frequency Cutoff, and the frequency modulation from Keyboard, LFO and Envelope CV signals, There are rotary potentiometers for adjusting the mix between two audio inputs and Resonance. There is a small slide switch to select whether the envelope CV input is Normal or Inverted.

The AM8102 is hand built with high quality components, including Wima polypropylene capacitors, Alpha potentiometers, and TR808 style control knobs.

There are six 3.5 mm jack sockets on the front panel:
2x audio inputs
3x frequency CV inputs
1x audio output
The module comes with a set of M3 mounting screws and washers, and a standard Doepfer power cable.

AMSynths Jupiter 8 filter

Published on Apr 14, 2015 cane creek

"First test of AMSynths Jupiter 8 filter"

Brief NSFW flash at 2:42.

AMSynths AM8109 JP8 Low Pass VCF & June 2012 Newsletter

via AMSynths

"This module is replication of the Low Pass Filter from the legendary Roland Jupiter 8 and 4. This is a 2 and 4 pole OTA design that Roland first used in the Jupiter 4 in 1980, replacing a discrete version of the filter which took up more PCB space.

This is a warm sounding filter with smooth frequency control and a resonance that gradually increases up to full self oscillation, a sound very reminiscent of the early 1980's.

The difference between 2 and 4-pole modes is not dramatic, with the 2-pole mode providing a more gradual cutoff slope and silky sound.

EuroRack Module: 14HP wide
User Manual: Download PDF

Our Price: £125.00

Stock Status: New Stock in mid May
Availability: Reservations being taken now."



You might remember this one from this video back in September of 2010.

Via the June 2012 Newsletter:

"Latest News: We have had a busy few weeks shipping modules and completing the design of the AM8075SE Athena VCF and the AM8005 SH-5 VCF ready for launch in June. Stocks of the AM8705 Dual ADSR and AM8071 SnowFall VCF have run low, but we will have new stock in June. The AM8109 JP8 VCF consistently sells out but we have enough parts for another 20 to be shipped in 2012.Initial shipments of the AM8319 Diode Array VCF have started and a new iPad catalogue has been launched along with more SoundCloud demos. Work continues on completing the AM8027 VCO and AM8047 UAF, and a new online store will be launched later this month to enable customers to purchase straight from stock and with automatically calculated shipping."

SSM2044 Compared to SSI2144 at Resonance

Published on Aug 18, 2018 AMSynths

"SSM2044 VCF chip with resonance varied from minimum to maximum, so a comparison with the SSI2144 chip can be made."

SSI2144 at Resonance

Published on Aug 18, 2018 AMSynths

"SSI2144 VCF chip with resonance varied from minimum to maximum, so a comparison with the SSM2044 chip can be made."

NAMM 2020 - Introducing System 100 - Behringer Modular Synthesizer

Published on Jan 16, 2020 BEHRINGER

"Introducing eleven new Eurorack compatible modules – all of them authentic reproductions of original “System 100M” circuitry from 1975. With ultra-fat oscillators and creamy filters the sound became famous in the early 80s used by artists like Depeche Mode, Human League, Tears For Fears but also Vangelis, Tangerine Dream and even Aphex Twin.

If you’re into super-fat bass sounds, in-your-face leads or flowing soundscapes, definitely check them out! All modules are incredibly feature rich, have tremendous patching capabilities and a lot of them come with dual function, like:

- 112 dual oscillator with 3 waveforms, PWM and two sync modes
- 121 dual filter with 3-channel mixer per filter
- 130 dual VCA, again with dual 3-channel mixers
- 140 dual envelope has 3 outputs per ADSR plus a built in LFO that can be triggered and phase synced
- 173 gates module comes even with four gates that can switch audio and 6 quad buffered multiples
- 297 has a dual portamento controller plus two independent CV mixers
- 150 brings a ring modulator, 2 noise generators, syncable LFO and a sample and hold generator
- 172 module delivers a 6-step phase-shifter, an analog delay, an LFO and a gate delay
- 305 is an output module a four-band parametric EQ, a 4-channel mixer, line and separate headphone output and even a tuning oscillator
- 182 there is a powerful analog sequencer with either dual 8 steps or 1-16 steps and tempo, portamento and gate time controls
- 110 is a complete synth voice with VCO, VCA and filter in a single module

#NAMM2020"

Update: Word is this might be an AMSynths joint project. From their website:

"Behringer Partnership In June 2019 I joined forces with Behringer to design analog synthesizers that will be manufactured in China and sold to customer across the world. I am working on a number of projects which I will let Behringer announce when they are ready. AMSynths is continuing to grow with more Euro Rack modules being manufactured, as well as complete synthesizers like the SH05 and Jupiter One. In 2019 I started to restore vintage music gear, and you will see the repair stories in my Blog. I am also creating videos of my modules and the vintage synths that they emulate."


Update: some product sheet scans in in via Soviet Space Child and a note on one of the forums from Uli.

"I like to share with you the initial drafts of our M100 Eurorack Series.

These are 13 MID's or concept documents we create for every single product as part of our PLM (Product Lifecycle Management) process before we hand them over to our R&D departments for development.

We haven't decided yet which of these modules we will actually produce as it is important that we achieve a certain production volume.

As usual do we appreciate your valuable feedback which will give a better indication of validity of these products.

Thanks!

Uli"

Modules:

SYSTEM 100 140 DUAL ENVELOPE/LFO
SYSTEM 100 112 DUAL VCO
SYSTEM 100 121 DUAL VCF
SYSTEM 100 130 DUAL VCA
SYSTEM 100 131 MIXER/OSCILLATOR/HEADPHONE AMP
SYSTEM 100 132 DUAL CV/AUDIO MIXER & CV GENERATOR
SYSTEM 100 150 RING MOD/NOISE/S&H/LFO
SYSTEM 100 165 DUAL PORTAMENTO CONTROLLER
SYSTEM 100 172 PHASE SHIFTER/AUDIO DELAY/GATE DELAY/LFO
SYSTEM 100 173 QUAD SIGNAL GATE/PATCH BAY
SYSTEM 100 174 PARAMETRIC EQ
SYSTEM 100 110 VCO/VCF/VCA
SYSTEM 100 182 Analog Sequencer

CLICK FOR MORE »

AM8060 Module - Roland Jupiter 6 Multi-Mode VCF Clone

Full details on Analog Metropolis Synthesizers. Be sure to see the site for more DIY projects including an ARP 2600 replica.

On the AM060: "This module is a clone of the Roland Jupiter 6 voltage controlled filter which comprises two 2-pole OTA filters in series, and was launched in 1983. Each 2-pole filter can be switched into either Low Pass or High Pass modes providing three VCF modes all with variable resonance:

* 24dB Low Pass Filter
* 24dB High Pass Filter
* 12dB Band Pass Filter"

Update: "The PCB is 80x100mm, and currently available in 15V format. I plan to have a limited run of completed 12V EuroRack modules in the summer, thanks to a Roland MKS10. The web page now has the project notes and Eagle CAD files for download.

http://www.amsynths.co.uk/Filter_Bank2/AM8060/am8060.html

Regards - Rob
www.amsynths.co.uk"

New AMSynths AM8325 OBIE-XA FILTERS Eurorack Module

Details:

"The AM8325 module is a recreation of the 2 and 4 pole filters in the Oberheim OB-Xa. The filter uses two AS3320 filter chips to produce an amazing sounding VCF. The 2-pole filter is a state variable, reminiscent of the Oberheim SEM, with low pass and high pass outputs. The 4-pole filter is a classic 24dB OTA low pass.

PRODUCT STATUS: IN PRODUCTION
Euro Rack Module: 14HP wide

The filter has two audio signals inputs with level control (OSC1, OSC2), frequency cutoff and resonance controls, along with two frequency modulation controls (MOD and ENV). There is also a dedicated keyboard input for controlling the filter cutoff from a pitch signal.

Front panels slide switches control whether the keyboard pitch CV is ON or OFF, and which filter mode is provided at the output:
2-pole low pass
2-pole high pass
4-pole low pass
There are six 3.5mm jack sockets mounted on the bottom of the panel;
Signal Inputs (x2)
CV Inputs (x2)
Keyboard Input
Signal Output.
The module comes with a 10-pin power cable and a set of mounting screws and washers (M3 silver)."

Priced at £140.00 ~$188.00 US

CLICK FOR MORE »

Analogue Systems RS10 +Yarns + SEM20 + Polivoks + Intellijel Buff Mult eurorack

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

ANALOGUE SYSTEMS RS-20
MUTABLE INSTRUMENTS YARNS
BUBBLESOUND SEM20 VSF
THE HARVESTMAN POLIVOKS
INTELLIJEL BUFF MULT

(AMSYNTHS MIRAGE FILTER for sale in separate listing)

perfectly working and in excellent cosmetic condition

CLICK FOR MORE »

Behringer's Cool Audio Clones the Roland BA662A

This one is in via Jose of sonicplug.com, spotted on Future Music Spain.

Per Behringer:

"Great news. Our sister company Coolaudio who designs mixed architecture semiconductors has just released the holy grail of synthesizer chips - a clone of the BA662A.

It is the THE chip responsible for the unique sound of so many classic synths.

Not only has Coolaudio cloned the BA662 “A” version, which is the highest specified version, they also managed to greatly improve noise performance and included even two chips in one packaging.

We’re beyond excited:-)"

The BA662 was used in the Juno-6/60/106, JX-3P and TB-303, Jupiter-4, and Jupiter-8.

via AMSynths:

"The BA662 is a custom made DC controlled variable transconductance amplifier (or OTA) that Roland had manufactured by Rohm from the late 1970’s and is now obsolete. There are two types of chip with different suffices; the A version has been selected for lower offset than the B version. They are further classified by gain/gm. The BA662B can only replace another BA662B, whilst an A can be used in either application.

To quote Roland from the 100M Service Manual: 'Color has great importance in circuits of some models'. However there is nothing mystical about the sound of the BA662, it is just a reasonable good OTA chip which is often carefully matched and selected."

Note Open Music Labs made a clone as well (last edited in 2014):

"They just don’t make IC’s like they used to, and is this case, they just don’t make them at all! So, we decided to bring the BA662 back to life, in all it’s Frankenstein glory. This is a direct replica (to the best of our knowledge) of the now obsolete OTA, made from well matched transistor pairs. It can be used as a drop-in replacement for most applications. So if you have an old synth or effects pedal that is no longer synth’ing or effecting, this just might be the cure...

The BA662 clone is a replica of the very rare BA662 OTA which was used by Roland in a number of their synthesizers and effects pedals from the 80's. The internal wiring of the BA662 was reverse engineered from an original part by applying external voltages and currents, and seeing how it responded. For example, you can find out how many transistors are at the top and bottom of the output stage by measuring the saturation voltages. From this it was found that they used Wilson current mirrors. Also, by measuring the current consumption under varying signal levels, the value of the emitter resistor on the buffer stage was found. A fair bit of the anaylsis was based on recollections from seeing a datasheet a long time ago, and the fact that OTA's have very similar topologies."

Modular Tracks 1

YouTube Published on Jul 6, 2012 by pjoris2

"The first real "track" here. I wanted to do something summery like Roedelius or so. Not sure if it is the Belgium weather but it didn't end up that summery.

No full explanation of the patches this time, but some info:
- main sequence is from the oberkorn: 2 16 note sequences, each played twice, using a clock divider and sequential switch
- these sequences are played by the Livewire AFG through the AMSyths JP6 filter
- then through my Korg PME4: 3 analoge delays+flanger
- baseline is from the 3rd channel of the oberkorn, played by a doepfer VCO through the AS multimode filter
- the "strings" are the could generator controlled by an SQ8 sequencer through the AMSynths JP8 filter (clocked at 1 step for each 16 steps on the oberkorn), through a Boss DD20 delay
- everything is transposed by a second SQ8
- all notes are quantized using 2 doepfer quantizers
This is recorded in one run. Then I added two tracks whit some random noises from a noise source through an AS "EMS" filter, an AS echo module and the korg PME40X pedal board.

The mandolin was not used ...;"

HAL Revealed

This one in via rosynth.

Now we know what was behind the red eye in 2001: A Space Odyssey. Rosynth messing around with his eurorack system in his studio.

Click and zoom for the full size shot.

"Analogue Systems Sorcerer keyboard/cabinet with RS-15 power supply + Moog MIDI CV GATE interface + the following modules:

Tiptop uZeus (for extra power!),
Elby Designs ED-115 SH Noise,
Intellijel: Rubicon + Dr. Octature + Corgasmatron + uVCA,
Frequency Central Wave Runner + System X envelope (x2),
Analogue Systems RS-20 Ring Mod, RS-95 VCO, RS-500E EMS SYNTHI filter, RS-100 Moog Style Low Pass filter, RS-230 CV Buffer, Mod Wheels,
YuSynth Minimoog VCF,
AMSynths 8328 the MIrage filter + 8109 JP8 LPF,
Doepfer A-124 Wasp filter"