Grado Timbre Platinum4 Phono Cartridge - Mono
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Grado Timbre Platinum4 Phono Cartridge - Mono
Grado Timbre Platinum4 Mono Moving Iron Phono Cartridge
What You Need to Know
Olive Wood Warmth, Dedicated to Mono
The Grado Timbre Platinum4 Mono Moving Iron Phono Cartridge pairs the hand-carved Mediterranean olive wood body and 6N OCC copper coils of the stereo Platinum4 with a generator purpose-built for mono records. Hand-built in Brooklyn, it makes mono pressings sound quieter, cleaner, and more alive.
For collectors building a serious mono front end, this is a wonderfully musical place to start stepping up.
Why a Dedicated Mono Cartridge?
Mono records carry music in the groove’s side-to-side motion only. A true mono cartridge reads exactly that—so the surface noise, wear, and vertical artifacts a stereo cartridge picks up simply disappear. As Grado puts it, a mono cartridge makes your records quieter and more musical.
Phase anomalies vanish, the center image locks in, and no mono switch is needed—both channels carry the identical signal.
True Mono Generator with 6N Copper Coils
Grado doesn’t simply bridge a stereo cartridge. The Platinum4 Mono uses a revised version of Joseph Grado’s patented flux-bridger moving iron generator—wound with ultra-high-purity 6N OCC copper—engineered for mono operation while keeping the same ultra-low moving mass.
Hand-Carved Mediterranean Olive Wood Body
Dense, fine-grained olive wood damps and tunes vibrational energy naturally, giving mono pressings a warm, controlled, spacious presentation with the organic character only tonewood delivers.
High Output, Hand-Built in Brooklyn
With 4.0mV of output, the Platinum4 Mono works with any standard MM phono input. Each one is built to order and hand-assembled at Grado’s family-owned Brooklyn factory, est. 1953.
Building Your System
The Platinum4 Mono suits any quality turntable with a standard MM phono input. Many collectors keep it mounted on a second headshell or tonearm, switching to it whenever a mono pressing hits the platter.
Please note: mono versions are built to order by Grado—allow additional lead time.
Features & Specifications
True Mono Moving Iron Generator
Reads only the mono groove for quieter, more musical playback.
Hand-Carved Mediterranean Olive Wood Body
Dense, fine-grained tonewood for warm, controlled, spacious sound.
6N OCC Copper Coils
Higher-purity windings for lower noise and finer detail.
High-Output Design
4.0mV works with any standard MM phono input—no mono switch needed.
Wood Cartridge Upgrade Program
Trade in any Grado wood cartridge toward a new one—regardless of condition.
Hand-Built in Brooklyn, USA
Built to order at Grado’s family-owned factory, est. 1953.
Specifications
• Type: Mono Moving Iron (MI)
• Stylus: Elliptical Diamond
• Cantilever: Aluminum
• Body: Hand-Carved Mediterranean Olive Wood
• Output: 4.0mV
• Load Impedance: 10k–47k ohms
• Mounting: Standard ½-inch
• Tracking Force: 1.6–1.9 grams
• Weight: 9.4 grams
Frequently Asked Questions
Do I need a mono switch or special phono preamp?
No. The 4.0mV output works with any standard MM phono input, and both channels carry the identical mono signal—no switch required.
Can I play stereo records with it?
The mono version is purpose-built for mono pressings. For stereo records, use the stereo Platinum4—many collectors keep one of each.
How does it compare to the Opus4 Mono?
The Platinum4 Mono upgrades to a Mediterranean olive wood body and higher-purity 6N copper coils, delivering greater refinement and lower noise from your mono pressings.
Who is the Platinum4 Mono designed for?
It’s ideal for mono collectors who want a clear step up in wood-body refinement without a big jump in price.
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- Moving iron (Flux-Bridge) design — fixed magnets and coils, tiny iron element at cantilever tip provides low moving mass and accurate groove tracking.
- True mono generator — reads only the lateral mono groove information for quieter, cleaner playback of mono pressings; no mono switch required.
- Mediterranean Olive wood body naturally damps cartridge resonances for a cleaner, more controlled presentation than plastic-bodied cartridges.
- Updated housing geometry improves cantilever visibility for easier, more precise alignment during setup.
- Bonded elliptical diamond on aluminum cantilever for accurate groove contact and reliable tracking across a wide range of records.
- 6N OCC copper internal signal path — ultra-high purity copper with reduced grain-boundary distortion.
- Cryogenic treatment and internal damping applied to each cartridge to reduce resonance and preserve signal integrity.
- High output (4.0mV) — works with any standard MM phono input, no special gain requirements.
- Non-sensitive to capacitive loading — no cable capacitance matching required.
- Compatible with Grado’s Wood Cartridge Upgrade Program.
- Built to order by Grado — special-order item, please allow additional lead time.
- Standard ½” mount — compatible with virtually any tonearm headshell.
- Hand-built in Brooklyn, New York, USA.
- Type: Mono moving iron (Grado Flux-Bridge)
- Series: Timbre
- Body: Mediterranean Olive wood
- Cantilever: Aluminum
- Stylus: Bonded elliptical diamond
- Output: 4.0mV @ 5 CMV (45 degrees) — high output
- Frequency response: 10 Hz–60 kHz (controlled)
- Channel configuration: True mono — both channels carry the identical signal
- Input load: 10k–47k ohms
- Inductance: 55mH (high output)
- DC resistance: 660 ohms (high output)
- Cartridge weight: 9.4g
- Tracking force: 1.6–1.9g (recommended)
- Compliance: 20 μm/mN
- Mounting: Standard ½”
- Internal wire: 6N OCC copper
- Country of origin: USA (Brooklyn, NY)
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