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RMG SM900 Studio Mastering Tape

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RMG SM900 Studio Mastering Tape

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$69.00 to $75.90

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Page last updated Jul 04, 2026

Pricing and availability

We compare 600+ stores and found this item at 2 stores. Prices updated June 17, 2026.

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4.7 (5)

$75.90

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4.8 (14)

$69.00

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Price History

Based on price data from 1 merchant for "RMG SM900 Studio Mastering Tape". Prices shown reflect NEW condition. Tracking began Apr 23, 2026.

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Description

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Unlock the full potential of your studio recordings with the RMG SM900 Studio Mastering Tape. This high-quality analog tape is designed to meet the stringent demands of professional audio engineers and musicians who crave warm, dynamic sound. With its superior oxide formulation, the SM900 delivers exceptional audio clarity and extended high-frequency response, making it an ideal choice for mastering and archival projects. Whether you're capturing the intricate details of a full orchestra or the raw power of a rock band, this tape ensures every nuance is preserved with precision.

The RMG SM900 is crafted with a 1/4" bandwidth, providing a balanced and reliable performance across a wide range of audio applications. Its robust 762-meter (2500-foot) length offers ample recording space, allowing for extended sessions without interruption. Mounted on a durable plastic reel with a 26 cm diameter, it ensures smooth handling and compatibility with most professional tape machines.

Perfect for both vintage tape enthusiasts and contemporary producers, the SM900 combines the charm of analog warmth with modern reliability, making it a must-have for any serious recording setup.

Key Features:

Bandwidth: 1/4"
Length: 762 m (2500 ft)
Plastic reel
26 cm diameter

Product specs

Available since	August 2017
Tape width	1/4"
Tape Length (m)	762
Reel	Plastic Reel
Pin	Trident

FAQs

What is the tape width of the RMG SM900 Studio Mastering Tape?: The RMG SM900 Studio Mastering Tape has a tape width of 1/4 inch, which is standard for many professional and home studio tape decks.
How long is the RMG SM900 Studio Mastering Tape?: The tape length of the RMG SM900 is 762 meters, providing ample recording time for studio sessions.
What type of reel does the RMG SM900 Studio Mastering Tape come on?: The RMG SM900 Studio Mastering Tape is supplied on a plastic reel, which is durable and compatible with most tape machines.
What is the pin type of the RMG SM900 Studio Mastering Tape?: The RMG SM900 Studio Mastering Tape features a Trident pin, ensuring compatibility with a variety of tape decks.

Videos

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AES Video: RMG Analog Recording Tape

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Reviews

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PROS

Significantly less tape wear and higher longevity than SM911
Natural, fuller bass response with moderate saturation
Superior frequency response and noise performance compared to SM911
High overload capacity, especially in high frequencies
Very low inherent noise level
Excellent winding properties with professional AEG machines
Great dynamic range and sound quality for vintage recording techniques
High-end quality recording suitable for professional setups
Compatible with both SM900 and SM911 for versatile use

CONS

Higher price compared to earlier versions like SM911

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about RMG SM900 Studio Mastering Tape.

Setup and maintenance

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RMG SM900 tape requires machines with adjustable repro and bias settings; consumer machines might need disassembly for alignment.
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Maintaining tape machines requires spare parts like capstan belts due to frequent breakdowns; plan for regular maintenance and calibration.
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Regular maintenance is crucial; users recommend replacing belts immediately, even on lightly used machines, for optimal performance.
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Gain staging and tape type selection can mitigate noise and hiss, but users should expect some level of inherent tape noise.
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Comparisons

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SM900 is preferred for machines that can handle +6 or +9 tape; SM468 is recommended for weaker, semi-pro machines.
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High-quality tape machines like the RT909 or Otari 5050 are essential for optimal sound; lesser models may degrade the audio quality compared to emulations.
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Users compare reel-to-reel sound to DAW plugins, noting that plugins like U-He's Satin mimic the effect but lack the tactile and artistic nuances of tape.
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User experience

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ATR Master and RTM SM900/911 tapes are favored over older tapes to avoid sticky shed syndrome.
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Owners report that tape machines require significant technical knowledge and are a costly investment, often making plugins a more practical alternative.
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Some users find reel-to-reel machines cumbersome and see little benefit over digital setups unless the tactile process inspires creativity.
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Use cases and applications

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Tape machines are favored for quirky, lofi effects rather than high-fidelity recordings, which are better achieved with high-end digital solutions.
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Owners often use reel-to-reel machines for unique effects, such as tape loops or tape delay, enhancing creative processes.
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Some users utilize tape machines as an integral part of their setup, using them as effects processors or final mix recorders for a distinct sound.
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Features and functionality

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The Uher Royal Deluxe offers unique features like four tape speeds and a built-in tape-echo function, providing a distinct, lofi sound through onboard speakers.
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The Pioneer RT-707 is praised for its robust build and dual usage as both a preamp and a recording device, albeit being notably heavy.
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Jack White

Singer, Guitarist

The Raconteurs

Verified via Soundonsound

Used to record the album Lazaretto. "We recorded to tape, initially just eight–track, to RMG 900 at 7.5ips. Jack loves that sound and we also are very happy with the quality. It has a hefty bass bump, almost an octave lower than 15ips, and the top end is flat until 20k. Something happens at the top end, above 4k, with tape compression; the sound is easier saturated and it meant that we never had to worry about things like de–essers. We did not hit the tape hard. In fact, we left tons of headroom, because it retains transients better."