OP-8, Roland @ 10 January 2015, Comments Off

op-8 “Roland OP-8 CV Interface, very good condition. Works perfectly. Some minor cosmetic wear but no dents. Also please note this has a China/Australia style plug and runs on 220V. I will include a plug adapter to fit American outlets (see photo) but you will need a step down transformer ” Link

OP-8, Roland @ 21 December 2014, Comments Off

op-8“Up for sale here is a vintage OP-8 sequencer for the Jupiter 8 or Juno 60. The unit has a bit of wear but is otherwise in great working condition. Tested and working. These were built for 220V so if you are planning on using this unit in the US you can easily get around this by getting 120 to 220V wall adapter for around $10 at your local electronics store. This is extremely rare! Happy bidding.” Link

OP-8, Roland @ 09 March 2014, Comments Off

“This auction is for a ROLAND OP-8 CV Interface in great condition and working condition.Thanks.

The unit is 117volts.

**In countries that use 230 ~ 240volts**
You may need the voltage converter to use it.” Link

OP-8 @ 02 February 2014, Comments Off

“This auction is for a ROLAND OP-8 in great condition and working condition.” Link

MC-4, MT-100, OP-8, Roland @ 29 December 2013, Comments Off

“I am selling my beautiful Roland MC4 system,
It’s in beautiful condition, looks great and works as expected.

It comes with original boxes for the MTR100 and OP8, but no cables to connect the MC4 to the MTR100 or the OP8 to a Juno. I had to borrow them to test it.” Link

OP-8, Roland @ 20 October 2013, Comments Off

” Up for sale is a (1) Roland OP-8 CV Interface. It’s in nice optical condition (see photo’s) and is working fine! It’s a 220V version and the serial number is: 260430.” Link

OP-8, Roland @ 21 July 2013, Comments Off

“Roland OP8 in great condition. It is actually new old stock and I opened the original box to take the photos. These were sold as part of the MC-4b sequencer and do a fine job or translating DCB outputs of Juno 60 and Jupiter 8 in CV gate. I purchased two of these as a NOS boxed pair but no longer have my Juno or MC-4b and are therefore selling this last unit. The OP-8 can send 4 streams of CV output as well as VCA and VCF messages.” Link

OP-8, Roland @ 24 March 2013, Comments Off

“Rare Roland OP-8 analog synth interface is up for auction.
Designed to control Roland polyphonic synths that were equipped with a DCB (Dig. Control Bus) interface via the Roland MC4 micro composer.
They are connected with a DCB cable.( not supplied)
The OP8 and MC4 were then patched together using patchcords via each of their patchbays.
The transpose control was able to transpose the synth up or down by one octave.
Use a mono analog synth /sequencer such as an MC-202 to drive your Jupiter or Juno as I did through the OP-8 and you will find it also adds a different colour to the mix.
Unlimited possibilities especially today with the Midi to CV like Kenton where you can use each channel to play different melodies to drive your synth.
In good working order and cosmetically fine.” Link

OP-8, Roland @ 05 August 2012, Comments Off

“For Sale here is my Roland OP-8 CV Interface in Perfect working order. It comes with a suitable power supply and is directly ready for use.

The Roland OP-8 interface was designed to control Roland polyphonic synthesizers that were equipped with a DCB (Digital Control Bus) interface such as the Roland Juno and Jupiter via a analog sequencer such as the Roland MC-4 Microcomposer or the System 100 model 104. The OP-8 and synthesizer were connected together usin a DCB cable wich added in this auction. The OP-8 and analog sequencer can be patched together using patchcords via each of their patchbays” Link

OP-8, Roland @ 22 July 2012, Comments Off

“I purchased this unit new in the 1980s. It was never used and still has it’s tag. I have no way to test it out, so it’s being sold as is. As you can see from the photos, it is in impeccable physical condition – it looks absolutely brand new, just as it did when purchased and stored.” Link

OP-8, Roland @ 17 June 2012, Comments Off

“roland OP-8 CV – DCB interface for use controlling Jupiter 8 and Juno 60 synths. This unit is part of the Roland MC-4B sequencer set.

This item is new old stock only opened to take these photos. I bought this as a set of two unopened boxed units. It is is mint condition. The unit runs on 240V and has a euro type plug. It will work just fine with a standard adapter.” Link

OP-8, Roland @ 04 March 2012, Comments Off

“Roland OP-8 Control Voltage to Digital Control Bus Interface for the Juno 60, Jupiter 8 and MC-4.

Fully tested and working on all channels, comes with a 14 pin DCB cable for the Juno 60 and Jupiter 8′s with that interface.

This unit was designed to accompany the MC-4 sequencer, but will accept a 1 volt per octave signal from any synth of that standard.
The CV signals are converted to DCB and sent to the Juno/Jupiter. (It will not act as a DCB to CV converter)
This unit has been tested with the following:

Roland MC-202 (single CV channel)
Kenton Pro 2000 (multiple channel CV input for chords)
Expert Sleepers ‘Silent Way’ (multiple CV channels)
Roland Juno 60″ Auction ended. Click here to browse on eBay.

OP-8, Roland @ 26 February 2012, Comments Off

“This auction is for a used Roland OP-8 CV Interface The OP-8 CV Interface is a classic, sort after, and increasingly rare vintage interface. It is in perfect working order and is in very good condition for its age.

It is in good condition with barely any bumps or scratches

It comes with original serial number badge which has the following detail:


Model: OP-8

Serial Number: 310688

This item has been photographed switched on and lit up!” Auction ended. Click here to browse on eBay.

OP-8, Roland @ 25 December 2011, Comments Off

“ROLAND OP-8 CV Interface

Includes attached cord.

Has some consmetic scuffing from being in storage, but has been tested and works.” Auction ended. Click here to browse on eBay.

MC-4, OP-8, Roland @ 25 September 2011, Comments Off

“Extremely rare digital/analog sequencer , especially in this condition, legendary because of its extremely tight timing and groove….MC 4b was serviced by Basskozept studio – a leading Italian service center for obscure synths & peripherals. All push buttons, which are usually not working properly, were replaced by new ones, so they will work flawlessly for years. He also upgraded the power supply and changed the electrolytic caps in the unit. This is the version with expanded memory – whopping 48Kbs. More then enough for any song. Included in the package is even rarer CV to MIDI interface OP-8M which was also serviced recently (all capacitors replaced, upgraded power supply, cleaned and calibrated…), so you can drive your MIDI synths with it. I guess that you can’t find a combo like that in that condition easily if at all.” Auction ended. Click here to browse on eBay.

OP-8, Roland @ 29 May 2011, Comments Off

“Ich verkaufe hier ein Roland CV/Gate Interface in sehr gutem Zustand. Das Gerät funktioniert tadellos, läuft mit
Roland Jupiter – 8 oder Roland Juno – 60. Beigefügt sind 1 Breitbandkabel für Jupiter – 8 und englisches Manual.” Auction ended. Click here to browse on eBay.

OP-8, Roland @ 29 August 2010, Comments Off

“For sale is the rare Roland OP-8 Analog Synth CV – DCB Interface.

I’ve lowered the asking Price from $450 to $299 !!!

I had it for years and it has been years since I’ve used it as I sold my last Jupiter8 years ago.

However, When i did use it last it was working great.

As you see in my photos I add a custom made DCB cable with it to hook it up with your synth.

I’ve used it with both Jupiter-8 and Juno-60.

I’ve used my Mono Analog synth/Seq such as MC-202 to drive the Jupiter-8 thrugh the OP-8 and it added a different color to the mix

The Jupiter-8 in Unison mode was mixed with the MC-202 sound and I’ve also played on a different channel my old Roland SH-101 and drove the Jupiter-8 live.

There are unlimited possibilites especially today with the Midi to CV like Kenton where you can use each channel to play different melody to drive the Jupiter or Juno.

I never had the owner manual for it but than again I never needed it as it has a simple layout and simple to use.” Auction ended. Click here to browse on eBay.