REEL TO REEL WAREHOUSE – Complete FAQ

Reel to Reel Warehouse was founded by Gene Bohensky in Madison, New Jersey in 2020. Gene has been an analog tape enthusiast since childhood — his earliest memory is watching his father's Sony TC-355 reels spin. Before founding RtRW he operated Rosemont Media Transfer, an analog-to-digital tape transfer service, since 1999 — giving him over two decades of hands-on experience with how tapes age, degrade, and perform.

The idea came when Gene was recording music from Amazon HD streaming onto old reel-to-reel tape during the pandemic lockdown, using 50- and 60-year-old tapes on a TASCAM 3030 at 15 ips and getting essentially perfect sound. The realization: people needed to know that old tapes still work — and needed a trustworthy source that could identify which ones.

Most vintage tape sellers list tapes by lot with no assessment of whether they are actually usable. Reel to Reel Warehouse developed a proprietary 7-step refurbishment and certification process — every tape sold as "refurbished" has been individually inspected, degradation-tested, cleaned, re-packed, bulk-erased, and verified for the full length.

We also built the first comprehensive tape formulation classification system (Types 1–8) that maps tape performance to machine calibration. Our brand information pages cover more than 25 manufacturers with specific formula numbers, SSS risk ratings, and recommendations — information found nowhere else online in this depth.

We source directly from the three major markets — United States, Germany, and Japan — including tapes and reels never sold in North America. Every tape sold refurbished comes with a 90-day no-fuss replacement guarantee.

Every tape sold as Refurbished carries a 90-day no-questions-asked replacement guarantee. If you find a problem — shedding, squealing, sticky shed, winding issues, or any performance problem — contact us and we will send a replacement tape at no charge.

We also sell tapes in Used (As-Is) condition for collectors or those wanting to test specific formulations. Used tapes carry no guarantee and are priced accordingly. Every listing clearly states which category applies.

Rosemont Media Transfer is Gene Bohensky's analog tape restoration and digitization service, operating since 1999 in New Jersey. It specializes in transferring reel-to-reel recordings, cassettes, 8-track, and other analog formats to digital. Gene's two-decade experience at Rosemont is the foundation of all tape knowledge at Reel to Reel Warehouse.

If you have pre-recorded home recordings or family memories on old reel tape that need to be digitized — particularly if the tape may be degraded — Rosemont Media Transfer is the resource for professional-grade transfer work.

Yes — absolutely. This is the central discovery that inspired Reel to Reel Warehouse. Gene regularly records from modern high-resolution digital sources onto 50- and 60-year-old tape and gets essentially perfect sound. The quality and longevity of many vintage tape formulations after six decades is frankly astonishing.

The key is knowing which tapes have aged well. Tapes from BASF, Maxell, and TDK are almost universally playable today. Many Scotch and Ampex formulations suffer from Sticky Shed Syndrome but can be restored by baking. Knowing which is which is exactly what this website exists to help you with.

The answer depends on when your machine was made. Every reel-to-reel recorder was calibrated at the factory for a specific tape type, and using the wrong type produces suboptimal sound.

• Pre-1965 machines — Standard / Type 1: Scotch 150, Ampex 641, BASF SP52
• 1965–1972 machines — Low Noise / Type 2: Scotch 202/203, BASF LH series, AGFA PE36/46
• 1972–1977 machines — LN/High Output / Type 3: Maxell UD, TDK SD/Audua, Fuji FG
• 1977–1985 machines — High Output +3 / Type 4: Maxell XL-I, BASF LPR35, RTM LPR90
• Professional machines — Type 5 or 6: RTM SM468, RTM SM900, ATR MDS-36

Start with the box — brand, formula number, and label text. Most Scotch, Ampex, and BASF tapes print the formula number prominently. For BASF in particular, the formula is also printed directly on the leader tape — the most reliable identification method for that brand.

If the box is missing, look at the reel design and oxide colour. Brown/red-brown = standard iron oxide; gray/charcoal = low-noise or high-output polished oxide.

Yes. Two manufacturers currently produce new reel-to-reel tape:

• RTM (Recording the Masters) — Avranches, France, on original BASF and AGFA equipment. They produce the LPR90 (Type 4), SM468 (Type 5), and SM900 (Type 6). No Sticky Shed Syndrome.
• ATR Magnetics — American manufacturer producing the MDS-36 (Type 5). No SSS.

Both are excellent choices if you want to eliminate all uncertainty about tape aging.

• Bulk eraser (~$30–50) — essential before reusing any purchased used tape.
• 99% isopropyl alcohol and lint-free cotton swabs — for head cleaning every 5–10 hours with vintage tape.
• Leader tape — protects recordings from hub damage. RtRW sells leader tape in ~250 ft lengths.
• Food dehydrator (~$40) — essential for baking Ampex or Scotch back-coated professional tape. Set to 130–135°F.
• Splicing block and splicing tape — for repairs and leader installation.

We developed an 8-type system to classify every reel-to-reel tape ever made by performance tier, referenced against the Scotch 111 as the 0 dB baseline:

The critical rule: use the tape type your machine was calibrated for. A Type 4 tape on a Type 1 machine sounds unnaturally bright. A Type 1 tape on a Type 4 machine sounds dull and lifeless.

"Low Noise" was not just a marketing term — it described a genuine technical improvement. In 1964, Scotch released the first Low Noise tape (the Dynarange 202/203 series) through a more polished oxide surface using their "Superlife" calendaring process. The noise floor dropped by 4–6 dB compared to standard tape.

The visual tell: Low Noise and better tapes have a noticeably shinier, grayer oxide surface compared to the duller, more orange-brown standard tapes. Low Noise tapes require slightly more bias than standard tapes — on older machines they sound slightly brighter.

Extra Efficiency (EE / Type 8) tapes use cobalt-modified or chromium dioxide oxide requiring a specific higher bias and EQ setting. Made by Maxell (XL-II), TDK (SA reel), and BASF (Chrome Dioxide). Only a small number of machines have the EE bias switch:

• TEAC X-300 / X-300R, X-700 / X-700R, X-1000 / X-1000R, X-2000 / X-2000R
• Akai GX-747 and GX-77

These designations refer to backing thickness and resulting tape length per reel:

BASF/AGFA/Maxell note: These manufacturers made DP tape with a thicker 0.75 mil base — more robust than the US-standard 0.5 mil. BASF intentionally made their DP tapes to 2,100 feet (not 2,400) to avoid thinning the oxide coating. A deliberate quality choice.

Safe without baking: Scotch 102, Scotch 150 ("bulletproof" — 60-year-old examples still record beautifully), Scotch 202/203 (Dynarange Low Noise — outstanding), Scotch 120, and the Tartan series.

Require baking: Scotch 206/207 back-coated versions (US and Italian production excellent; Japanese lots have sudden binder failure risk), Scotch 250, and the Scotch Classic/Master series — worst SSS of any Scotch product. Always bake Classic/Master a minimum of 12 hours.

Ampex 456 held approximately 90% market share in professional recording studios worldwide in the 1970s and early 1980s. Nearly every major album from that era was recorded on it. The output headroom and sound quality were exceptional.

All Ampex 456 requires baking before use — no exceptions. This includes the Quantegy-era 456 produced through approximately 2007. All of it has now developed Sticky Shed Syndrome. After baking at 130–135°F for 8 hours it is fully usable and still excellent.

Ampex tapes safe without baking: the entire non-back-coated Ferrosheen series (631, 641, 671, 432, 444, 632, 642). The 641 is Gene's personal favourite Type 1 tape. The 642 was the last consumer reel-to-reel tape sold at retail in the United States (through Radio Shack).

BASF is one of the most reliable brands — they refused to license the Agfa polyurethane binder that caused SSS in Ampex and Scotch. Nearly all BASF tapes are playable today without treatment.

• Standard (SP52, LP35, DP26 — no LH marking): Good Type 1 tape. Identifiable by olive-green leader with no printed text, and an older blockier font on the box label.
• LH (SP52 LH, LP35 LH, DP26 LH): The formulation that made BASF famous worldwide. The leader tape is printed with the formula name — look for "LP 35 LH" or "SP 52 LH" directly on the leader. This is BASF's unique and definitive labelling practice.

BASF LPR35 / DPR26: Gene's all-time favourite tape — extraordinary stability, perfect winding, no SSS. Still produced today by RTM as the LPR90.

Maxell is arguably the most reliable vintage tape brand of all. Maxell developed independent binder chemistry — and five decades later, virtually no Maxell tape has failed due to chemistry. There is essentially no SSS failure mode with Maxell. Even reels found soaked in a wet cardboard box in the rain — dried out and played — came out fine.

• Maxell UD (all generations — gold, gray, or blue box): One of the best consumer tapes ever made. No SSS. Gold box = Type 3A (lower bias, older machines OK); gray/blue = Type 3B (needs mid-1970s machine or later).
• Maxell UD-XL / XL-I: Gene's candidate for the best consumer tape ever made. Back-coated, no SSS, outstanding performance.
• Maxell TP (Triple Play UD): The only triple-play tape that maintained genuine high-output performance at TP thickness. Extraordinary and very rare.

TDK is generally excellent — with one important exception. Like Maxell, TDK developed independent binder chemistry and is free of SSS across most of their line.

Recommended: SD (Super Dynamic) and Audua series (both back-coated and non-back-coated), SD-Master, SA-R. No SSS, no White Powder Syndrome. Gene's personal favourites among Type 3 options.

The exception — White Powder Syndrome (WPS): The back-coated TDK LX-B and GX series develop a white or yellowish crystalline residue on the oxide surface. These must be cleaned before every use — sometimes multiple times per session.

Sony tape is variable by era and version. Gene has revised his opinion upward significantly based on Japanese lots we receive — Sony SLH and ULH from Japan (never exported to the US) are frequently in excellent condition.

Safe to use: Non-back-coated SLH from all eras (what RtRW sells). Sony ULH (Ultra Low Noise High Output) is generally safe and performs close to Maxell XL-I.

Avoid: Back-coated SLH from any era — high SSS risk. Sony acetate tapes — consistently the worst acetate tape encountered across thousands of reels. Virtually all Sony acetate we see is unusable.

AGFA is excellent and underappreciated — most of their production was sold in Europe and was never widely available in North America. Gene has always rated AGFA highly — slightly better high-frequency characteristics and consistency than BASF in the same era.

Best AGFA tapes: PE36/PE46 Low Noise series, PE39/PE49 (updated versions), and above all the PEM 468 — one of the finest professional tapes ever made. PEM 468 is Type 4, back-coated, no SSS, very high coercivity. Produced until 2023 by RTM.

Memorex is reliable and underrated. They were a genuine US manufacturer of Low Noise/High Output tape (Type 3), with no back coating and — to our knowledge — zero Sticky Shed Syndrome across their entire product line. After certifying hundreds of Memorex reels we have never seen an SSS failure.

Identification: Memorex did not print formula types on their boxes. We identify by reel window design — single window = earlier formulation, triple window = later formulation. Both are good.

Fuji is excellent and consistently underrated. Three series to know:

• Fuji FM (Ferro Master): Type 2 Low Noise — similar to Maxell LN. No SSS. Excellent.
• Fuji FG (Ferric Grade): Type 3 LN/HO — equivalent to Maxell UD or TDK SD. If you find it, buy it.
• Fuji FB (Ferro Base): Type 4, back-coated — equivalent to Maxell XL-I. No SSS. Highly recommended.

• Original standard tape: Sourced from Audio Devices (Audiotape formula 10) — high quality Standard Type 1.
• Own production (red box LN / blue Supertape): Genuine Low Noise and High Output formulations. Three-window reel versions are particularly good — low shedding, long-lasting.
• Concertape: Budget product sourced from multiple vendors including Ampex reject stock. Extremely variable — assess every reel individually.
• Late period: Radio Shack switched to sourcing Quantegy 642 — an excellent non-back-coated Type 3. The last consumer reel-to-reel tape sold at retail in the United States.

Sticky Shed Syndrome is a condition affecting tapes manufactured from the mid-1970s through approximately 2007. The tape's polyurethane binder — the adhesive that holds oxide particles to the backing — is hygroscopic: it absorbs water molecules from the atmosphere, which break down the polymer chains (hydrolysis), softening the binder until it becomes gummy or adhesive.

When a tape with SSS is played, the softened binder sticks to tape guides, capstans, and heads, leaving brown residue deposits. In severe cases it can strip the oxide coating entirely — permanently destroying the recording.

Tapes most affected: Ampex 456/457/499, Scotch 206/207/250/Classic, and Quantegy successors. All Ampex/Quantegy professional tape including late-era Quantegy (to 2007) is now turning sticky.

The origin is one of the more remarkable accidents in industrial chemistry. Until 1972, whale oil (or derivatives) was used in the lubrication system of reel-to-reel tape. In 1972, the United States banned commercial whaling. Manufacturers adopted a synthetic replacement lubricant that proved to be hygroscopic over time — absorbing atmospheric moisture and breaking down the polyurethane binder matrix. That is Sticky Shed Syndrome.

The most consequential historical accident: BASF refused to license the Agfa polyurethane binder because their management would not pay royalties to a competitor. TDK and Maxell independently developed their own binder systems. Five decades later, BASF, TDK, and Maxell tapes have essentially no SSS — while Ampex and Scotch tapes using the polyurethane system are nearly universally affected.

Yes — baking works and is the standard solution. Ampex itself released a technical memorandum on the process. Research using scanning electron microscopy confirmed that baking reconstitutes the binder close to its original condition.

1. Get a food dehydrator — approximately $40 on eBay or Amazon. Do not use a conventional oven (temperature too imprecise).
2. Set to 130–135°F (54–57°C).
3. Place reels with adequate air circulation.
4. Bake for 8 hours minimum. Severe cases (Classic/Master, late Ampex) benefit from 12–24 hours.
5. Allow to cool to room temperature before use.
6. Transfer to digital or use within one year before moisture is gradually reabsorbed.

Bake these — it works well: Ampex 456, 457, 458, 499 / Quantegy equivalents; Scotch 206/207 (back-coated lots); Scotch 250; Scotch Classic/Master (always bake, minimum 12 hours).

Do not bake — no benefit: BASF (all formulations, no polyurethane binder), Maxell (all formulations, no SSS), TDK SD/Audua (no SSS), Fuji FM/FG/FB (no SSS), Memorex (no SSS), Audiotape/Capitol polyester series, Soundcraft Plus series.

Baking may not help (different failure mode): Acetate tapes (failure is in the backing, not the binder). BASF Studio Series (squealing from Soft Binder Syndrome). TDK LX-B/GX (White Powder Syndrome — cleaning, not baking, is the treatment).

Not necessarily — and often not at all. Mold grows on the surface and in most cases has not penetrated the oxide layer. After careful cleaning, a mouldy tape frequently plays perfectly.

Procedure: Work in a well-ventilated area. Use a clean lint-free cloth dampened with 99% isopropyl alcohol. Wind the tape slowly through the cloth, cleaning as you go. Inspect heads and guides after a short section to confirm mold is being removed and not redeposited.

1. Dirty tape heads (most likely): Oxide deposit buildup on the head gap blocks high-frequency magnetic transitions. Clean all heads, guides, and capstans thoroughly with 99% isopropyl alcohol on a cotton swab. The high frequencies will come back immediately.

2. Wrong tape type for the machine: If your machine is calibrated for Type 3 or 4 tape and you are using Type 1 standard tape, it will sound dull regardless of head cleanliness.

BASF LPR35. Extraordinary mechanical stability, perfect winding characteristics, no SSS, and excellent sound. Still available today as the RTM LPR90 — made on original BASF equipment in France.

• Type 1 (Standard): Ampex 641/631 series (Ferrosheen) — the definitive Type 1
• Type 2 (Low Noise): Scotch 202/203 (Dynarange) — outstanding, perfect stability
• Type 3 (LN/HO): Maxell UD (any generation) and TDK SD/Audua — equally excellent
• Type 4 (HO +3): BASF LPR35 / RTM LPR90 — all-time favourite; Maxell XL-I close second
• Type 5/6 (Professional): RTM SM900 (current production) — the pinnacle of tape formulation

Yes — with a predictable trade-off. A higher-type tape on a lower-calibrated machine will be under-biased, producing accentuated high frequencies and slightly louder apparent output. Many users in the 1970s gravitated to Maxell UD and TDK SD for exactly this reason on their older machines.

For the most faithful sound, use the tape type your machine was calibrated for. For casual use, going one type higher is fine. If you want to use a newer tape type optimally, have a technician recalibrate your machine's bias during its next service.

• 3.75 ips: Background recording, speech, non-critical material.
• 7.5 ips: Standard for high-quality consumer and semi-pro use. Excellent results with Type 3/4 tape. This is where the format really shines.
• 15 ips: Professional and semi-professional standard. Outstanding frequency response. The reference for serious audiophile and archival work.
• 30 ips: Professional multi-track studio only. Large reels and professional machines required.

For home enthusiasts: record at 7.5 ips minimum. If your machine runs 15 ips and you have the tape budget, use it — the difference is audible and significant.

• Temperature: 60–70°F (15–21°C) ideal. Avoid attics in summer or unheated garages in winter. Repeated cycling between extremes is the enemy.
• Humidity: 40–60% relative humidity. Below 30% accelerates acetate brittleness. Above 70% promotes mold and accelerates SSS hydrolysis.
• Light: Store in closed boxes away from direct sunlight and UV exposure.
• Acetate tapes: Store in cardboard boxes, not metal canisters. Acetate outgasses acetic acid — metal canisters trap it and accelerate further degradation. Cardboard breathes.

With vintage tapes (pre-1975 formulations), clean heads every 5–10 hours of playback using 99% isopropyl alcohol on a lint-free cotton swab. With modern tapes (TDK, Maxell, BASF, RTM, ATR), cleaning every 20–30 hours is typical.

How to clean: Dampen a lint-free cotton swab with 99% isopropyl alcohol (not standard rubbing alcohol — the water content is too high). Gently wipe the head gap in the direction of tape travel. Clean all tape guides, capstans, and pinch rollers. Allow to dry completely (30 seconds) before threading tape.

A bulk eraser is a large electromagnetic device that erases an entire reel without passing it through a machine — essential for any enthusiast reusing purchased used tapes.

Why a machine erase head is not enough: Different machines use different track configurations and head alignments. If a tape was recorded on a different machine or track layout, the erase head may not exactly overlap the previous signal — leaving a ghost of the old recording under your new one. Bulk erasing eliminates all previous content completely.

How to use: Power the eraser on, hold the reel close to the eraser face, rotate slowly in all directions for 10–15 seconds, then gradually pull the reel away while the eraser is still running. Cost: $30–50 for a consumer-grade unit.

• Hub protection (most important): The small hub slot creates a permanent crease in the first few winds of tape. Leader takes this damage instead of your recording tape. For thin DP or TP tape this crease can be irreparable.
• Threading protection: Leader gives you something expendable to grab when threading, rather than mangling the first seconds of your recording.
• Environmental buffering: Several winds of leader help buffer the actual recording from environmental effects — particularly important for acetate tapes.

TEAC X-300 / X-300R: Calibrated for Type 3 (LN/High Output) — Maxell UD, TDK SD/Audua, or Fuji FG are ideal. Also has a separate EE (Type 8) bias switch for Maxell XL-II, TDK SA reel, or BASF CrO2.

TEAC X-700 / X-700R: Calibrated for Type 4 — BASF LPR35, RTM LPR90, or Maxell XL-I. Also has EE switch.

TEAC X-1000 / X-1000R and X-2000 / X-2000R: Have a selector for both Type 3 and Type 4, plus the EE switch — the most flexible machines TEAC produced. Use Type 4 (BASF LPR35, RTM LPR90, Maxell XL-I) on the HO setting for best results.

Both machines are calibrated for Type 4 (High Output +3) as their primary setting. Best tapes: Maxell XL-I, BASF LPR35, RTM LPR90, AGFA PEM 468.

Both also have a separate EE (Type 8) bias setting — engage the EE switch and use Maxell XL-II, TDK SA reel, or BASF CrO2 for Extra Efficiency recording. The GX heads on these machines have very low head wear characteristics — one of the most reliable combinations available.

Revox A77 (early, serial below S20200): Calibrated for AGFA PE31 (Type 2). Best current equivalents: Scotch 202/203, BASF LH series.

Revox A77 (late, S20200 and above): Recalibrated for AGFA PE36RX — Type 3A. Best equivalents: BASF LH, AGFA PE36/46, Maxell UD, TDK SD.

Revox B77: Factory calibrated to Revox 621 tape (rebranded Scotch 250 — Type 4). Best today: BASF LPR35, RTM LPR90, Maxell XL-I, AGFA PEM 468.

Professional machines are calibrated for Type 5 or 6 and require professional-grade formulations. Do not use consumer tape on a professional machine.

• Type 5 machines (Studer A80/B67, Otari MX-5050, TASCAM 38/BR-20T): RTM SM468, ATR MDS-36. Vintage: BASF SM468/SM911, Ampex 456/457 (bake first).
• Type 6 machines (Studer A820, Otari MTR-90, TASCAM MSR-24): RTM SM900. Vintage: BASF SM900, Ampex 499 (bake first).

The 7" reel is the most common and runs on the vast majority of consumer machines. The 10.5" NAB reel is used by professional and flagship consumer machines — it holds double the footage and allows longer continuous recording at professional speeds.

The key factor is round and true. A reel that is not precisely round will wobble on the spindle during winding, creating an uneven tape pack — leading to edge damage, inconsistent tension, and degraded performance.

Best construction: Two-piece reels (where an A and B half are moulded separately and assembled) tend to be more precisely round than single-piece moulded reels. The final Maxell reel design is an exemplary two-piece heavy plastic reel — true, round, and robust.

Yes — through the 1960s and 1970s, major record labels released commercial pre-recorded reels of popular albums. Factory-duplicated releases from original masters, not home recordings. The format competed seriously with vinyl and 8-track until cassette dominated in the late 1970s.

US pre-recorded reels were typically 4-track at 3-3/4 ips, duplicated at high speed (8x–16x real-time). The Ampex Music label releases are particularly well-regarded.

Japanese pre-recorded reels are collector's items — typically 2-track at 7.5 ips, duplicated more carefully, on quality Japanese tape. Jazz titles are especially sought after: Miles Davis, Dave Brubeck, Japanese jazz artists. These appear in our Japanese lots regularly and sell quickly.

Value factors: 2-track commands a premium over 4-track; Japanese over US; condition of box and tape; rarity of the title; whether the tape plays correctly.

Each of the three major markets consumed different tapes — often brands and formulations never sold in North America. Importing directly from the source markets gives US customers access to tapes genuinely unavailable here when new.

Germany: The homeland of BASF and AGFA. Dominated by BASF DP26 (by far the most popular format there). German collectors were meticulous — lots often arrive with cards listing the recordings, reels matching boxes, excellent storage conditions.

Japan: Enormous variety — rare metal reels, unique packaging, Japanese-exclusive products, and high-quality pre-recorded jazz releases. Sony SLH and ULH from Japan (never exported to the US) frequently test as excellent.

United States: Eclectic — lots reflect one person's 20-year relationship with reel tape. Scotch, Ampex, Radio Shack, Japanese imports from the mid-1970s onward.

• Burgess Batteries (Niagara Falls, NY) — had their own tape production in the 1960s. Own reel design. Quality equivalent to Scotch 150.
• JMT 3100 — Japanese broadcast master tape, similar to Scotch 207 at broadcast quality. Excellent.
• Scotch 2000 Series (Japan, 3M Sumitomo) — high-output DP tape better than standard Dynarange DP. Rare in the West.
• RMG LPR (NOS from Japan) — brand new, sealed RMG LPR tapes found in Japanese lots. Goes quickly when listed.
• Audio Magnetics on PVC backing — early 1960s US production; unusual PVC backing not typical for US manufacturers.

1. Tape Selector tool — select your machine brand and model, get instant personalised tape recommendations.
2. Tape Search — filter by brand, reel size, thickness, tape type, condition, and more. In-stock items only.
3. Brand pages — deep-dive pages for every major brand with formulation histories, formula numbers, SSS ratings, and recommendations.

If you cannot find what you need — or want expert advice — contact Gene directly via the Contact page. He responds personally and is happy to advise on tape selection for any specific machine or application.

Yes. Reel to Reel Warehouse ships worldwide. We have served customers across the United States, Europe, Japan, Australia, and beyond. International shipping rates are calculated at checkout. Contact us if you have questions about shipping to a specific country or want to discuss larger orders.

Absolutely. Send Gene a photo of the box, reel, and leader tape via text or email (contact info on the Contact page) and we can usually identify it. Include photos of: the box front and back, the reel itself, the leader tape, and any visible condition issues.

The Tapeheads.net forum is also an excellent community resource for identification, with decades of archived tape knowledge.