Manley Labs MM/MC GRAMOPHONE CARTRIDGE PREAMPLIFIER owner manual Troubleshooting

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TROUBLESHOOTING

The STEELHEAD’s system architecture is designed with a variety of features so as to allow flexibility in accommodating as many cartridges and as much downstream gear as possible. Access to these capabilities rest on the assumption that all STEELHEAD systems are functioning properly. If trouble is encountered please review the following short list of symptoms and corrective remedies before contacting your dealer or us.

Symptom

Possible Cause

Corrective Action

NO lights, power.

Bad mains fuse.

Replace with correct fuse.

Bad or unplugged

Check cables and outlets.

power cable.

AC outlet not energized.

Rolling Grayout®™

Abandon California, elect Libertarians.

Power supply pilot ON,

‘HEAD not responding.

16-pin connector not seated. Check for proper connection.

Dim badge lamps, LEDs.

Mains Voltage selector Check for proper setting.

Weak output.

switch set to 220 V instead

of 110 V. Be sure of local

mains voltage before

changing switch setting!

Tube locator diagram

RIAA amp board

7044	7044	6922	6922	7044	7044
Output heard in one		Bad tube in affected	Alternate or replace suspect
channel only.		channel.	tube.
Weak or distorted		Bad tube in affected	Alternate or replace suspect
output in one channel.		channel.	tube(s).

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Contents Manley Manley SteelheadContents Introduction Thank YOUUnpacking Installation Precautions Features and Applications High Performance Front ENDAccurate 4-CORNER Riaa Equalization SWITCH-SELECTABLE Cartridge Load Impedance SWITCH-SELECTABLE Amplifier Gain PUSH-BUTTON Switch FunctionsLine Input Select Button Preparation for Installation Before POWER-UPOperational Notes Returning to Standby Mode During OperationReplacing a Tube or Illuminated Badge Lamp Serial # Troubleshooting Symptom Possible Cause Corrective ActionSymptom Possible Cause Specifications Fuse type and ratingsWarranty Manley LABORATORIES, INCWarranty Registration

MM/MC GRAMOPHONE CARTRIDGE PREAMPLIFIER specifications

The Manley Labs MM/MC Gramophone Cartridge Preamplifier stands as a remarkable piece of audio equipment, designed to elevate the listening experience for vinyl enthusiasts and audiophiles alike. Renowned for their expertise in high-fidelity audio, Manley Labs has crafted this preamplifier to deliver exceptional sound quality and versatile performance for both Moving Magnet (MM) and Moving Coil (MC) cartridges.

One of the standout features of the MM/MC Gramophone Cartridge Preamplifier is its high-quality analog signal processing. The preamp employs vacuum tube technology, incorporating premium 12AX7 and 12AT7 tubes to provide a warm, rich sound that many listeners treasure. The implementation of soft and natural tube warmth contributes to an organic sound, preserving the authenticity of vinyl recordings while enhancing detail and nuance.

This preamplifier offers adjustable gain settings, allowing users to optimize performance according to their specific cartridge choice, be it MM or MC. With the capability to accommodate various cartridge output levels, the Manley Labs preamp ensures maximum adaptability. Users can switch between settings easily, ensuring compatibility with a wide range of turntables and cartridges.

Additionally, the MM/MC Gramophone Cartridge Preamplifier features high-quality components throughout its design. Its circuit topology is engineered to minimize noise and distortion, ensuring a clean signal path. The unit is also equipped with a low-frequency filter, which can be utilized to eliminate unwanted subsonic frequencies that could muddy the audio experience.

Another notable aspect of this preamp is its robust build quality. Encased in a sleek metal chassis, it combines aesthetics with durability, ensuring longevity while adding a stylish touch to any audio setup. The carefully designed layout not only contributes to the preamp’s performance but also showcases Manley Labs’ commitment to craftsmanship.

In conclusion, the Manley Labs MM/MC Gramophone Cartridge Preamplifier is a premium choice for vinyl lovers seeking a high-performance preamp that combines vintage warmth with modern adaptability. Its advanced features, high-quality components, and user-friendly design make it an essential addition for anyone looking to enhance their vinyl listening experience profoundly. With this preamplifier, Manley Labs continues to uphold its reputation for excellence in high-fidelity audio.