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The RS inventory list is ever changing! As a matter of fact, some synths never have a chance to be listed here as they're purchased before that is possible.
By signing up for our weekly newsletter, you will get the first peek at whats here and what's coming.
We generally send our newsletter every Thursday morning and then post our "sales drop" via Instagram stories in the afternoon.

Current "Rob's Rare Synths" Inventory

Updated 11/11/25
If you are interested in anything below, please send us an email or give us a call.
Most items have an estimated lead time that can be affected by the number of orders we receive at once.
Once something sells, we will mark it here SOLD immediately until the next update cycle.
Prices are generally firm but we will happily give you a great package deal if you buy more than one synthesizer.
Prices are either same or slightly lower here than we would list on reverb when accounting for their hefty fees.
If you "saw it on reverb", let us know and we'll happily work out a mutually advantageous price!

Payment:
We accept PayPal, Wire Transfer, Zelle, Credit Card, and of course Cash.
We accept Venmo for items less than $6,000 or so.
Our #1 priority in getting paid is avoiding fees. Your offer will be the most attractive if it avoids fees.
Deposits: We accept deposits on any synth over $15,000. Our deposits are usually 90% of the total price.
We do not accept deposits on negotiated prices.

ARP 2600 #1- Tonus with 3604 Keyboard. Condition is great! SOLD
ARP 2600 #2 - Tonus with 3604 keyboard, ready to go! SOLD
ARP 2600 #3 - Black & Orange w/ 3620 keyboard. Good condition and ready to go!
EML-101 - Great condition, short lead time SOLD
Moog Memorymoog Minimoog Cocobolo Matching Pair - Wonderful condition and both fully restored. The memorymoog is a plus model and the minimoog includes the coveted Linntronics midi kit. While both have been restored by us, that was 8 years ago and we would like to give them a quick checkup before delivery, but they're ready to go otherwise and are both still working great. Includes pedal set for each unit as well as manuals and even road cases. Did we mention the units are in matching insanely beautiful cabinets? A pair to die for. Visible and audible here: https://www.instagram.com/reel/DQ5fbVOEWjy/?utm_source=ig_web_copy_link&igsh=MzRlODBiNWFlZA==
Moog Prodigy - Good condition.
Moog Sonic Six - Good condition.
Moog Sonic V - Working fine. Very rare piece!
Linn Linndrum W/ Midi- Serviced by Forat
Oberheim Matrix-12 - Good condition with 2 week lead time.
Oberheim Xpander - Great condition. 1 week lead time.
Oberheim OB-8 #1 - Great condition W/ page 2 with a short leadtime
Oberheim OB8 #2 - Fair condition. Short lead time!
Rhodes Chroma - Great condition and includes CC+ and the new SMPS. No lead time.
Roland Jupiter-8 #1 - Has cosmetic imperfections and prices accordingly. Short lead time.
Roland Jupiter-8 #2 - Good condition, very short lead time.
Roland Jupiter-6- Good condition. Working but has a short lead time.
Roland SH-1 - Good condition
Sequential Circuits Prophet-5 - Rev 3.3. Condition is very very great. Shot lead time.
Sequential Circuits Pro One - W/ Turbo midi, fatar keyboard, new knob caps. Short lead time.
Sequential Circuits Prophet-VS - Great condition. Ready to go unless you want to add any upgrades.
Yamaha CS-60 - Great condition. Includes lid. Ready to go. Midi adds small lead time.
Yamaha CS-80 - Includes midi already and is ready to go!

Looking For Something Not Listed Above?

Rosen Sound is well connected and equipped to find you essentially anything you'd like.
If you're looking for something not listed above, please get in touch!

Wanted Dead Or Alive:
ARP 2600
ARP 2500
ELKA Synthex
Moog Minimoog
Moog MemoryMoog
Moog Modular
Oberheim OB-X
Oberheim OB-Xa
Oberheim OB-8
Oberheim Two Voice, Four Voice / Eight Voice or any SEM System
Roland Jupiter 4
Roland Jupiter 8
Sequential Circuits Prophet 5 (any rev)
Sequential Circuits Prophet 10
Yamaha CS-50 CS-60 CS-80

Shipping

We ship using a few different methods. Our preferred method is via air cargo which is strikingly inexpensive and arrives to you the same or next day, and allows the buyer to pay for the shipping charges instead of it being middle-man’d through us. We stress that the cost of shipping same/next day via this method is exceptionally safer due to the shorter handling times, and surprisingly cost much much less than traditional shipping… and you get your synth faster!

We are currently offering free shipping in CONUS if you utilize air cargo.

We also will ship UPS if going to the airport is not an option or you prefer it. We know everyone has their opinion on UPS/FEDEX, so we should note that we are UPS people.

Want it to ship in a brand new hard case?
We work with an awesome local flight case maker who’s been in the biz forever. The prices are reasonable and he has measurements for the most common gear we sell. A new hard case will run $3-800 generally and be ready within a week or two. Note that this service is only offered to those who are purchasing gear from us or repair clients.