Those two bands are why the question of when to buy used synths after new release price drops is not a calendar trick. It depends on whether the new unit is a replacement, a cheaper sibling, or just a software update. Checking sold price research on SearchMusicGear before you wait, bid, or list keeps the decision tied to completed Reverb and eBay sales instead of announcement-day asking prices.
When to buy used synths after new release price drops
The useful window for buyers is usually the three to six months after a true successor ships, not the week of the press release. In the first two weeks, listings spike as owners jump, but many of those posts still ask last quarter’s money. By month three, sold comps have usually reset, inventory is thicker, and you can negotiate against actual closes rather than hope. By month six, the drop often flattens unless the new model is still backordered and dumping more first-gen units onto the market.
Firmware announcements almost never produce that reset. A free OS update can even support used prices, because the older box just gained features. Adjacent models in the same catalog — a cheaper four-voice next to a five-voice, a 12-voice flagship next to a six-voice — move the used band only if buyers treat them as substitutes. Most working players do not.
Prophet-6 and DeepMind 12: the 2025–2026 quarter that did not crash
The assigned comparison is the honest one: these two popular analog polys did not behave like Elektron boxes when 2025–2026 news hit.
Prophet-6 after Sequential Fourm
Sequential announced Fourm on September 23, 2025, at $999 — four analog voices, Prophet-5-derived architecture, slim-key polyphonic aftertouch. Sweetwater has since advertised it as low as $799.99. That is Sequential’s most affordable poly, not a Prophet-6 replacement. Prophet-6 is still a 49-key, six-voice, discrete-VCO instrument with a current new price near $3,499–$3,599.
Used Prophet-6 keyboards have not fallen into Fourm money. Reverb’s estimated used range of $2,229–$2,488 lines up with a March 2025 Sweetwater Gear Exchange close at $2,356 and current Excellent asks from the mid-$2,300s. Desktop modules trade lower: UK Reverb’s Good-to-Mint guide recently sat around £1,244–£1,480 on a small sample, with late-2025 closes from about £1,200 to £1,450, and U.S. Excellent asks near $1,635–$1,650. Those desktop numbers are approximate and thin. The point still holds: Fourm pulled Sequential shoppers toward $800–$1,000 analog, but it did not reprice a $3,500 six-voice in the following two quarters.
Compare used Sequential Prophet-6 prices
DeepMind 12 through firmware and the 12X refresh
DeepMind 12 is still in the catalog. New street has eased from $999.99 toward $859. In 2025 Behringer added DeepMind 12X / 12XD as a color-scheme refresh, not a new engine. Firmware 1.1.x keeps older units current. Used prices followed the street drop, not a successor dump.
EU Reverb recently estimated Good-to-Mint DeepMind 12s at roughly €277–€574 across 48 orders — a wide spread that includes tired units at the floor. U.S. sold activity in early 2026 clustered closer to the Sweetwater band: $525 (Good, April), $600 (Mint, March), $675 (Excellent, March). UK sold examples near £400 show the same mid-pack. If you waited for a 2025–2026 announcement to cut $200 off a clean DeepMind, the sold tape never delivered it.
See what the Behringer DeepMind 12 actually sells for
The launches that actually reset the used band
True MkII replacements are the ones that open the three-to-six-month buy window. The sold ranges below are current marketplace bands, not list prices.
Elektron Digitakt and Digitone
When Digitakt II launched in 2024, Reverb reported original Digitakts in good-to-mint U.S. condition selling regularly around and under $500, with leftover new stock marked down about $200. That crash is still visible. Live Excellent Digitakt I listings sit around $515–$550. Digitakt II, by contrast, carries a Reverb used guide of $746–$958 on hundreds of Good-to-Mint orders, with December 2025 closes from about $800 to $950.
Digitone followed the same pattern. Original Digitone used value on Reverb recently ran about $415–$464, with UK sold examples near £380. Digitone II used sits around $870–$943 in the U.S. guide and roughly £650–£700 on recent UK solds. If you wanted FM Elektron without paying for 16 voices, the buy was not announcement week. It was after the first wave of MkI listings actually closed.
Compare used Elektron Digitakt prices
See Elektron Digitone sold prices
Arturia PolyBrute after PolyBrute 12
PolyBrute 12 did not make the original six-voice worthless, but it did re-anchor it as last year’s flagship. Reverb’s all-model used guide for the original PolyBrute recently sat around A$1,566–A$2,112 on 301 orders (roughly the mid-$1,000s USD, depending on FX). A current U.S. Excellent ask near $1,880 (down from $2,180) fits that band. PolyBrute 12 used is a different lane: Sweetwater Gear Exchange examples around $3,369–$3,500 against new near $4,499. Buyers who only needed six analog voices and the Morphee controller got the drop. Buyers who needed 12 voices and FullTouch did not.
See what the Arturia PolyBrute actually sells for
Take 5 sitting next to Fourm
Take 5 is the Sequential that should have felt Fourm the most: compact analog poly, overlapping price after street discounts. Reverb’s used guide is $825–$1,133 on 394 Good-to-Mint orders. Monthly averages from August 2025 through January 2026 stayed near $1,000–$1,175, with December 2025 closes from $912 (Very Good) to $1,149 (Excellent). Sweetwater sold an Excellent at $999 in January 2026 and another at $1,000 in February. New Take 5 has been promoted near $1,399.99 from a $1,699.99 list.
That is modest pressure, not a Digitakt-style reset. Fourm new at $800–$999 now overlaps used Take 5, but Take 5 still has a Fatar keybed, five voices, and onboard effects. Players who wanted those three things did not dump. The ones who wanted Sequential analog under $1,000 bought Fourm instead of waiting for Take 5 to hit $700 — a number the sold tape has not printed in volume.
Compare used Sequential Take 5 prices
How the three-to-six-month window actually trades
Use the successor test first, then the clock.
- Weeks 0–2: Asking prices wobble. Some sellers panic; many still post last quarter’s comps. Sold data is too thin to trust a “crash.”
- Months 1–3: Inventory thickens. This is when original Digitakt and Digitone actually printed the new floor. Offers start clearing 8–15% under stale asks if you can show recent solds.
- Months 3–6: The band usually stabilizes. Condition and extras (box, Decksaver, power) matter more than the launch headline. Waiting past six months for another $50 rarely beats buying a clean unit at the new median.
- Firmware-only news: Do not wait. DeepMind 12 and Prophet-6 show why. Street price on remaining new stock may ease; used medians often do not.
Yamaha Montage is a workstation version of the same lesson. Original Montage 8 used recently guided about $1,603–$2,870 on 202 orders, with mid-2025 closes clustered near $2,500–$2,725. Montage M8x used is wider, about $2,369–$3,645 on a smaller sample. The original dropped when M shipped, then found a floor well above junk-bin money because 88-key flagships still work on gigs.
Buyer math versus flip math
Player math and reseller math split hard after a launch.
A clean Digitakt I around $500 versus Digitakt II used at $746–$958 is a real save if eight tracks and the original engine are enough. A DeepMind 12 at $525–$615 versus $859 new is the same kind of buy. Prophet-6 at $2,229–$2,488 versus $3,499 new is already a 29–36% discount without a successor event — waiting on Fourm did not add much.
Flip math is thinner once fees and freight land. Reverb seller fees plus payment processing plus synth shipping often consume 10–15% of the sold price. Buy a DeepMind at $525, sell at $650, and after roughly $80–$100 in fees and $35–$50 shipping you are close to even. Buy Prophet-6 at $2,250 and sell at $2,450 and the spread usually disappears. The flip only works when Deal Desk surfaces a listing under the current sold floor — a $430 Digitakt I, a $1,900 Prophet-6 with a missing description, a DeepMind 12 under $450 with a box. Those are listing errors, not launch timing.
- Buyers: Wait for a MkII or named successor, then shop sold comps in months three to six. Ignore firmware days.
- Sellers: List before a confirmed successor if you own the outgoing model. After the first month of closed sales, price to the new median or sit on it.
- Flippers: Do not assume every Superbooth or NAMM keynote reprices the previous SKU. Run the gear value against last 30 days of solds, not the press photos.
Check the sold tape before you wait or list
Announcement week is noise. Completed prices are the signal. SearchMusicGear search pulls live Reverb and eBay listings into one view so you can see whether the market is actually filling with first-gen units or just recycling old asks. Sold price research shows what those listings closed at. Deal Desk is the faster pass for anyone hunting under-comp synths while everyone else is watching the livestream.
If the new model is a real replacement — Digitakt II, Digitone II, PolyBrute 12 versus six-voice PolyBrute — plan to buy used in the three-to-six-month window and verify the median has actually moved. If it is Fourm next to Prophet-6, or a DeepMind colorway next to DeepMind 12, shop the current sold range today. The drop you are waiting for may already be as low as this generation goes.
