Grado Timbre Opus4 Phono Cartridge - High Output
✔ 60-Day Money-Back Guarantee — Try it risk-free for 60 days
✔ Free Shipping on orders over $49
✔ Financing Available — Pay over time | Learn more
✔ Price Guarantee — We match authorized dealer pricing | Details
✔ Expert Help — Call us at 800-942-0220 weekdays 9am–6pm EST
Delivery and Shipping
Delivery and Shipping
- Audio Advisor will ship products anywhere in the United States, including Alaska, Hawaii, and U.S. Territories.
- For more information, visit our Delivery & Shipping Policies.
Grado Timbre Opus4 Moving Iron Phono Cartridge
What You Need to Know
Your Entry into Grado’s Legendary Wood-Body Sound
The Grado Timbre Opus4 Moving Iron Phono Cartridge is the most affordable way to experience what Grado’s wood-bodied cartridges are famous for: rich, organic, deeply musical sound that draws you into your records. Hand-built in Brooklyn, the Opus4 pairs a hand-carved American maple body with Grado’s patented moving iron generator.
Once you’ve heard music through tonewood, it’s hard to go back.
Hand-Carved American Maple Body
Like a fine instrument, the Opus4’s body is carved from American maple, a tonewood prized for its warm, balanced resonance character. The wood housing damps and tunes vibrational energy naturally, giving the Opus4 a relaxed, full-bodied presentation that plastic-bodied cartridges simply can’t match.
The 4 Series body is also reshaped for better cantilever visibility, making precise alignment easier than ever.
Flux-Bridger Moving Iron Generator
Joseph Grado’s patented flux-bridger design keeps the coils fixed while an ultra-low-mass iron element moves in the magnetic field—delivering moving coil speed and detail with none of the fragility.
New for the 4 Series: an ultra-pure OCC copper signal path, cryogenic component treatment, and added internal damping for a quieter, more transparent presentation.
Three Versions: High Output, Low Output, and Mono
The Opus4 comes in three versions: High Output (4.0mV), Low Output (1.0mV), and Mono. High Output works with any standard MM phono input; Low Output rewards higher-gain phono stages with even lower moving mass and finer detail; and the Mono version is purpose-built for dedicated mono record collections.
Hand-Built in Brooklyn, New York
Every Timbre Series cartridge is assembled and tested by hand at Grado Labs in Brooklyn, where the Grado family has been building cartridges since 1953.
Building Your System
The Opus4 suits quality turntables with medium-mass tonearms. Choose high output for any MM phono input, or low output if your phono stage offers extra gain.
When the stylus eventually wears, Grado’s Wood Cartridge Upgrade Program lets you trade in any Grado wood cartridge toward a new one—protecting your investment for the long run.
Features & Specifications
Hand-Carved American Maple Body
Natural tonewood damping for rich, organic, full-bodied sound.
Flux-Bridger Moving Iron Generator
Moving coil speed and detail without the fragility.
OCC Copper Signal Path with Cryogenic Treatment
New 4 Series internals for a quieter, more transparent presentation.
Three Available Versions
High Output (4.0mV), Low Output (1.0mV), or Mono for mono record collections.
Wood Cartridge Upgrade Program
Trade in any Grado wood cartridge toward a new one—regardless of condition.
Hand-Built in Brooklyn, USA
Assembled and tested at Grado’s family-owned factory, est. 1953.
Specifications
• Type: Moving Iron (MI)
• Stylus: Elliptical Diamond
• Cantilever: Aluminum
• Body: Hand-Carved American Maple
• Output: 4.0mV (High Output) or 1.0mV (Low Output)
• Versions: High Output, Low Output, Mono
• Load Impedance: 10k–47k ohms
• Mounting: Standard ½-inch
• Tracking Force: 1.6–1.9 grams
• Weight: 8.3 grams
Frequently Asked Questions
Do I need a special phono preamp?
The high-output version (4.0mV) works with any standard MM phono input. The low-output version (1.0mV) needs a phono stage with added gain—but unlike moving coils, it still loads at standard 10k–47k ohms.
How does the Opus4 compare to the Prestige Gold4?
The Opus4 steps up to a hand-carved maple wood body for a richer, more organic tonal character, along with a lower-mass low-output option.
How does it compare to the Platinum4?
The Platinum4 upgrades to a Mediterranean olive wood body and higher-purity 6N copper coils for greater refinement and resolution.
Who is the Opus4 designed for?
It’s ideal for vinyl enthusiasts ready to experience Grado’s celebrated wood-body sound at its most accessible price.
Why Audio Advisor?
• 40+ Years of Expertise – Helping music lovers build better systems since 1981.
• 60-Day Money-Back Guarantee – Hear it in your own system with confidence.
• Real Product Experts – Friendly advice before and after your purchase.
• Free Shipping – On qualifying orders over $49.
• Flexible Financing – Convenient payment options available.
- Moving iron (Flux-Bridge) design — fixed magnets and coils, tiny iron element at cantilever tip provides low moving mass and accurate groove tracking.
- American Maple 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.
- 5N 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.
- Standard ½” mount — compatible with virtually any tonearm headshell.
- Hand-built in Brooklyn, New York, USA.
- Type: Moving iron (Grado Flux-Bridge)
- Series: Timbre
- Body: American Maple wood
- Cantilever: Aluminum
- Stylus: Bonded elliptical diamond
- Output: 4.0mV @ 5 CMV (45 degrees) — high output
- Frequency response: 10 Hz–60 kHz (controlled)
- Channel separation: Average 30 dB (10–30 kHz)
- Input load: 10k–47k ohms
- Inductance: 55mH (high output)
- DC resistance: 660 ohms (high output)
- Cartridge weight: 8.3g
- Tracking force: 1.6–1.9g (recommended)
- Compliance: 20 μm/mN
- Mounting: Standard ½”
- Internal wire: 5N OCC copper
- Country of origin: USA (Brooklyn, NY)
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.




