Audio T Verdict
The Sumiko Pearl is a straightforward moving-magnet cartridge that gets the fundamentals right. Its 0.3 x 0.7mil elliptical stylus offers more precise groove tracing than the spherical profile used by the Black Pearl, while its healthy 4.0mV output means it remains easy to partner with a conventional MM phono stage.
The aluminium-pipe cantilever, high-purity copper coils and 30dB channel separation give the Pearl a specification that remains convincing despite the design having been part of Sumiko's range for many years.
Setup is similarly conventional. Sumiko recommends a 2.0g tracking force, 47k-ohm loading and total capacitance between 100pF and 200pF. At 6.0g, the cartridge is also a practical proposition for many conventional tonearms, although proper compatibility and alignment should always be checked.
The replaceable stylus is another major advantage. When the original stylus eventually wears, the RS Pearl assembly can be replaced without changing the complete cartridge. Sumiko also confirms that the Pearl and Black Pearl stylus assemblies are physically interchangeable.
For anyone looking for a traditional MM cartridge with a proper elliptical stylus, sensible setup requirements and a replaceable stylus, the Pearl remains a very practical design.
Sumiko Pearl Moving Magnet Cartridge
The Sumiko Pearl sits within the classic Oyster family of moving-magnet cartridges and uses a 0.3 x 0.7mil elliptical stylus mounted to an aluminium-pipe cantilever.
Designed for conventional moving-magnet phono stages, it combines a 4.0mV output with standard 47k-ohm loading and a user-replaceable stylus assembly.
Key features include:
- Moving-magnet generator
- 0.3 x 0.7mil elliptical stylus
- Aluminium-pipe cantilever
- High-purity copper coils
- 4.0mV output
- 1,130-ohm internal impedance
- 47k-ohm load impedance
- 100–200pF recommended capacitance
- 12Hz–30kHz frequency response
- 30dB channel separation at 1kHz
- 0.5dB channel balance at 1kHz
- 12 x 10-6cm/dyn compliance at 100Hz
- 25-degree vertical tracking angle
- 1.5–2.0g tracking-force range
- 2.0g recommended tracking force
- 6.0g cartridge weight
- User-replaceable stylus
- RS Pearl replacement stylus
- Black Pearl stylus physically interchangeable
- Hand-assembled in Yokohama, Japan
Part of Sumiko's Classic Oyster Family
Pearl belongs to Sumiko's classic Oyster range alongside the Oyster and Black Pearl moving-magnet cartridges.
Within that family, Pearl introduces an elliptical stylus in place of the spherical profiles used by the models below it.
Moving Magnet Design
Pearl uses a moving-magnet generator.
The magnet moves in response to the motion of the stylus and cantilever, while fixed coils within the cartridge convert that movement into the electrical signal sent through the tonearm wiring.
This approach provides several practical advantages:
- Healthy output voltage
- Compatibility with conventional MM phono stages
- Standard 47k-ohm loading
- No low-output moving-coil gain required
- No step-up transformer required
- User-replaceable stylus assembly
4.0mV Output
Sumiko specifies an output of:
4.0mV at 1kHz.
This is designed for conventional moving-magnet phono amplification.
A Conventional MM Cartridge
The Pearl does not require the additional gain normally associated with a low-output moving-coil cartridge.
Connect it to a suitable MM input or external MM phono stage rather than a conventional low-output MC input.
47k-Ohm Loading
Sumiko specifies a load impedance of:
47k ohms.
This is the standard resistance used by the majority of conventional moving-magnet phono stages.
Use a Suitable Moving-Magnet Phono Stage
Pearl should be connected to an MM phono input or suitable external MM phono stage.
Do not use a conventional low-resistance MC setting unless the phono-stage manufacturer specifically provides a configuration suitable for a 47k-ohm moving-magnet cartridge.
100–200pF Recommended Capacitance
Sumiko specifies a capacitive load of:
100–200pF.
Moving-magnet cartridges interact electrically with the capacitance of the tonearm wiring, turntable interconnect and phono-stage input.
Think About Total Capacitance
The cartridge sees the combined capacitance of:
- Tonearm wiring
- Turntable interconnect
- Phono-stage input
Do Not Consider the Phono Stage in Isolation
If your phono stage provides selectable capacitance, remember that the turntable cable and tonearm wiring also contribute to the total load seen by the cartridge.
Aim for Sumiko's recommended 100–200pF total wherever the system allows.
1,130-Ohm Internal Impedance
Pearl's generator has an internal impedance of:
1,130 ohms.
This is an internal cartridge specification and should not be confused with the external 47k-ohm load required from the phono stage.
High-Purity Copper Coils
Sumiko uses high-purity copper within the Pearl's generator coils.
These fixed coils convert movement within the magnetic assembly into the electrical signal passed through the tonearm and onwards to the phono stage.
Aluminium-Pipe Cantilever
The Pearl uses an aluminium-pipe cantilever to connect the stylus to the cartridge's moving assembly.
The cantilever has to respond to extremely small and rapid groove movements while providing sufficient rigidity to maintain accurate control of the stylus.
0.3 x 0.7mil Elliptical Stylus
The Pearl uses a:
0.3 x 0.7mil elliptical stylus.
An elliptical stylus uses different radii along its two axes, allowing it to follow finer groove modulation than a basic spherical profile.
Why Use an Elliptical Stylus?
An elliptical profile offers a useful balance between:
- Detailed groove tracing
- Good high-frequency tracking
- Accurate stereo information retrieval
- Relatively straightforward cartridge setup
- Everyday record compatibility
Correct alignment remains important, but an elliptical stylus is generally less demanding to set up than some of the finer Line-Contact and Micro-Ridge profiles found on more expensive cartridges.
Accurate Alignment Still Matters
Correct cartridge setup may include:
- Overhang
- Offset angle
- Tracking force
- Bias or anti-skate
- Tonearm height where adjustable
- Azimuth where adjustable
Do Not Align the Cartridge by Eye
Use the alignment method specified for your turntable or tonearm, or an appropriate cartridge-alignment protractor.
Incorrect geometry can increase distortion, compromise tracking and contribute to unnecessary stylus or record wear.
12Hz to 30kHz Frequency Response
Sumiko specifies a frequency response of:
12Hz–30kHz.
30dB Channel Separation
Channel separation is specified at:
30dB at 1kHz.
This describes the cartridge's ability to keep information recovered from the left and right groove walls electrically distinct.
0.5dB Channel Balance
Sumiko specifies channel balance of:
0.5dB at 1kHz.
Channel balance describes how closely the electrical output of the left and right channels is matched.
6.0g Cartridge Weight
Pearl weighs:
6.0g.
This puts it within the range accommodated by many conventional tonearms.
Still Check Tonearm Compatibility
Cartridge weight alone does not determine whether a cartridge and tonearm are a suitable mechanical match.
Confirm that your arm can accommodate the Pearl's weight, compliance and tracking-force requirements while providing sufficient counterweight range and cartridge alignment.
Compact Cartridge Dimensions
Sumiko specifies dimensions of:
11.6 x 20.26 x 27.24mm (W x H x D).
Physical dimensions should be considered alongside headshell clearance, mounting arrangement and the available adjustment range of the tonearm.
Compliance
Sumiko specifies dynamic compliance of:
12 x 10-6cm/dyn at 100Hz.
Compliance describes the flexibility of the cartridge suspension and should be considered alongside the effective mass of the tonearm when assessing mechanical compatibility.
2.0g Recommended Tracking Force
Sumiko specifies a tracking-force range of:
1.5–2.0g.
The recommended setting is:
2.0g.
Do Not Deliberately Track Too Lightly
Reducing tracking force below the manufacturer's specified range does not automatically protect your records.
Too little tracking force can cause mistracking and prevent the stylus from maintaining stable contact with the groove.
Use an Accurate Stylus-Force Gauge
A tonearm counterweight scale is useful for initial setup, but a separate stylus-force gauge allows the final setting to be checked accurately at the cartridge.
Bias or Anti-Skate
Sumiko recommends setting anti-skate on its Oyster moving-magnet cartridges to a value corresponding approximately to the tracking force.
With Pearl operating at the recommended 2.0g tracking force, that provides a useful starting point of approximately 2.0g on a conventionally calibrated anti-skate control.
Follow Your Tonearm Manufacturer's Instructions
Different tonearms use different anti-skate mechanisms and calibration methods.
The arm manufacturer's setup procedure should therefore be considered alongside Sumiko's cartridge guidance.
25-Degree Vertical Tracking Angle
Sumiko specifies a vertical tracking angle of:
25 degrees.
If your tonearm provides height adjustment, this can form part of final cartridge optimisation. A fixed-height tonearm does not automatically make the Pearl unsuitable.
User-Replaceable Stylus
One of the practical advantages of Pearl's moving-magnet construction is its removable stylus and cantilever assembly.
Normal stylus wear therefore does not require replacement of the complete cartridge body.
RS Pearl Replacement Stylus
The direct replacement stylus assembly is:
Sumiko RS Pearl.
Replacing the stylus restores the cartridge without requiring the complete Pearl body to be removed from the tonearm.
Cartridge Alignment Normally Stays in Place
If the cartridge body has not moved during stylus replacement, the basic overhang and offset-angle alignment remain unchanged.
It is still sensible to recheck tracking force and bias after fitting the replacement stylus.
Black Pearl Stylus Compatibility
Sumiko specifically confirms that Pearl and Black Pearl stylus assemblies are physically interchangeable.
This means a Black Pearl stylus can physically be fitted to the Pearl cartridge body.
The Black Pearl Stylus Changes the Cartridge Specification
The standard Pearl uses a 0.3 x 0.7mil elliptical stylus, while Black Pearl uses a 0.7mil spherical profile.
A Black Pearl stylus therefore provides physical compatibility rather than maintaining the standard Pearl specification.
Pearl and the Newer Rainier Family
Sumiko treats Pearl and Black Pearl as members of its classic Oyster cartridge family.
Rainier, Olympia, Moonstone, Wellfleet and Amethyst use a later cartridge platform with their own interchangeable stylus system.
Do Not Assume Every Sumiko Oyster Stylus Is Interchangeable
Sumiko specifically confirms Pearl and Black Pearl stylus interchangeability, while separately describing the Rainier-family stylus system.
If you are considering fitting a different Sumiko stylus to a Pearl body, check compatibility with Audio T before ordering.
Stylus Care
Keeping both the record and stylus clean helps maintain consistent groove contact.
Useful habits include:
- Keep records free from loose dust
- Clean the stylus with an appropriate stylus brush or cleaning product
- Brush the stylus in the correct direction
- Use the tonearm cueing mechanism when lowering the stylus
- Avoid touching the cantilever
- Fit the stylus guard while working around the cartridge where practical
Always Clean From Back to Front
Sumiko advises cleaning the stylus using a back-to-front motion only.
Applying force in the opposite direction can damage the cantilever and suspension assembly.
Replacing the Stylus
The removable stylus assembly makes future replacement much simpler than on a conventional moving-coil cartridge.
Turn the System Down Before Replacing the Stylus
Reduce the amplifier volume or switch the system off before removing or installing the stylus assembly.
Handle the replacement by its housing and keep fingers away from the diamond and cantilever.
A Phono Stage Is Essential
Do Not Connect Pearl Directly to AUX or CD
A phono cartridge requires additional gain and RIAA equalisation before its signal reaches a normal amplifier line input.
Connect Pearl to a suitable moving-magnet phono stage first.
Using an External Phono Stage
If your amplifier does not include a suitable moving-magnet input, use an external phono stage.
The signal path becomes:
Turntable ? MM phono stage ? amplifier line input.
Browse phono stages at Audio T.
Pearl or Black Pearl?
Black Pearl
- Moving magnet
- 0.7mil spherical stylus
- Aluminium-pipe cantilever
- 4.0mV output
- 18Hz–27kHz frequency response
- 28dB channel separation
- 0.5dB channel balance
- 1.5–2.0g tracking-force range
- 2.0g recommended tracking force
- RS Black Pearl replacement stylus
Pearl
- Moving magnet
- 0.3 x 0.7mil elliptical stylus
- Aluminium-pipe cantilever
- 4.0mV output
- 12Hz–30kHz frequency response
- 30dB channel separation
- 0.5dB channel balance
- 1.5–2.0g tracking-force range
- 2.0g recommended tracking force
- RS Pearl replacement stylus
The most obvious difference is the stylus. Pearl moves from Black Pearl's spherical profile to a 0.3 x 0.7mil elliptical diamond, providing more precise groove contact and improved high-frequency groove tracing.
Pearl or Rainier?
Pearl
- Classic Oyster platform
- 0.3 x 0.7mil elliptical stylus
- 4.0mV output
- Aluminium-pipe cantilever
- RS Pearl replacement stylus
- Black Pearl stylus physically interchangeable
- Traditional Sumiko MM design
Rainier
- Later Oyster platform
- 0.3 x 0.7mil elliptical stylus
- Resonance-controlled cartridge housing
- Replaceable stylus assembly
- Dedicated Rainier-family upgrade path
- Olympia and Moonstone stylus upgrade options
- Different cartridge body from Pearl
Rainier belongs to Sumiko's newer interchangeable-stylus platform and provides a more extensive future upgrade route through Olympia and Moonstone replacement styli.
Compare the Sumiko Rainier at Audio T.
Hand-Assembled in Japan
Sumiko cartridges are hand-assembled by specialist cartridge makers at Excel Sound in Yokohama, Japan.
The company has maintained its manufacturing relationship with Excel Sound for decades, with cartridge assembly carried out by experienced technicians.
Professional Cartridge Fitting
Installing Pearl correctly may involve:
- Physical mounting
- Overhang adjustment
- Offset-angle alignment
- Tracking-force setup
- Bias or anti-skate adjustment
- Tonearm-height adjustment where available
- Azimuth adjustment where available
- MM phono-stage matching
- Capacitance checking
If you are not confident carrying out these adjustments accurately, professional fitting is worthwhile.
Who Is the Sumiko Pearl For?
Well Suited To
- Customers upgrading from a basic spherical MM cartridge
- Turntables using conventional tonearms
- Systems with a moving-magnet phono stage
- Customers wanting an elliptical stylus
- Customers who value a replaceable stylus
- Existing Pearl owners replacing a worn cartridge
- Turntables allowing accurate cartridge alignment
Check Before Buying
- 4.0mV moving-magnet output
- Requires suitable MM phono amplification
- 47k-ohm load impedance
- 100–200pF recommended capacitance
- 6.0g cartridge weight
- 12 x 10-6cm/dyn compliance at 100Hz
- 2.0g recommended tracking force
- Cartridge alignment needs setting accurately
Key Features
- Sumiko Pearl
- Classic Oyster Series
- Moving-magnet cartridge
- 0.3 x 0.7mil elliptical stylus
- Aluminium-pipe cantilever
- High-purity copper coils
- 4.0mV output
- 1,130-ohm internal impedance
- 47k-ohm loading
- 100–200pF capacitance
- 12Hz–30kHz frequency response
- 30dB channel separation
- 0.5dB channel balance
- 12 x 10-6cm/dyn compliance
- 25-degree vertical tracking angle
- 1.5–2.0g tracking-force range
- 2.0g recommended tracking force
- 6.0g cartridge weight
- 11.6 x 20.26 x 27.24mm dimensions
- User-replaceable stylus
- RS Pearl replacement stylus
- Black Pearl stylus physically interchangeable
- Hand-assembled in Japan
Frequently Asked Questions
Is the Sumiko Pearl moving magnet or moving coil?
Pearl is a moving-magnet cartridge.
What is the output of the Sumiko Pearl?
Sumiko specifies an output of 4.0mV at 1kHz.
What phono stage does the Pearl require?
A suitable moving-magnet phono stage.
What load impedance does it require?
47k ohms.
What capacitance does Sumiko recommend?
100–200pF.
Can I connect the Pearl directly to an AUX or CD input?
No. A phono stage must provide the necessary moving-magnet gain and RIAA equalisation first.
What stylus does the Sumiko Pearl use?
A 0.3 x 0.7mil elliptical stylus.
What is the cantilever made from?
An aluminium pipe.
What is the internal impedance?
1,130 ohms.
What is the frequency response?
12Hz to 30kHz.
What is the channel separation?
30dB at 1kHz.
What is the channel balance?
0.5dB at 1kHz.
What is the compliance?
12 x 10-6cm/dyn at 100Hz.
What tracking force should I use?
Sumiko recommends 2.0g, within a specified range of 1.5–2.0g.
What anti-skate setting should I use?
Sumiko recommends using an anti-skate value corresponding approximately to the tracking force for its Oyster moving-magnet cartridges. Always consider the tonearm manufacturer's own setup instructions as well.
What is the vertical tracking angle?
25 degrees.
How much does the Pearl weigh?
6.0g.
What are the cartridge dimensions?
11.6 x 20.26 x 27.24mm (W x H x D).
Can I replace the stylus myself?
Yes. Pearl uses a removable stylus and cantilever assembly.
What is the direct replacement stylus?
The Sumiko RS Pearl.
Can I fit a Black Pearl stylus?
Yes. Sumiko confirms that Pearl and Black Pearl stylus assemblies are physically interchangeable.
Will a Black Pearl stylus sound the same as the normal Pearl stylus?
No. The Black Pearl uses a 0.7mil spherical stylus while the standard Pearl uses a 0.3 x 0.7mil elliptical profile, so fitting it changes the cartridge's stylus specification.
Can I fit an Olympia or Moonstone stylus to the Pearl?
Sumiko specifically confirms Pearl and Black Pearl stylus interchangeability, while Olympia and Moonstone belong to the separate Rainier-family cartridge platform. Check with Audio T before attempting to fit a stylus that is not specified for the Pearl.
Does the Pearl need careful alignment?
Yes. Correct overhang, offset angle, tracking force and bias remain important for optimum performance and record care.
Where is the Sumiko Pearl made?
Sumiko cartridges are hand-assembled at Excel Sound in Yokohama, Japan.
Can Audio T fit and align the Sumiko Pearl?
Yes. Contact your local Audio T store to discuss tonearm compatibility, cartridge fitting, alignment, tracking force and phono-stage matching.
Related Sumiko Products and Audio T Guides
Why Buy From Audio T?
- Turntable and cartridge matching
- Moving-magnet phono-stage matching
- Cartridge fitting and alignment
- Tracking-force setup
- Bias and anti-skate adjustment
- Tonearm compatibility checks
- Capacitance and loading advice
- Replacement stylus guidance
- Turntable setup
- Stylus-care guidance
- Part-exchange options
- Ongoing after-sales support
Contact your local Audio T store to discuss whether the Sumiko Pearl is the right match for your turntable, tonearm and phono stage, or to arrange professional cartridge fitting and alignment.