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Linn Majik C 4100 - 4 Channel Chakra Series Amplifier - 100W x 4

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Linn Majik C 4100 - 4 Channel Chakra Series Amplifier 100W X

Linn Majik C 4100 - 4 Channel Chakra Series Amplifier - 100W x 4

SkyFi 479

Pickup currently unavailable

479 South Broad Street
Glen Rock NJ 07452
United States


This Chakra model C 4100 power amplifier offers four channels of amplification at 100W per channel.

This is the 'Phono' model that uses RCA-phono connectors for the input and output signal connectors. They are designed to accept unbalanced, line-level audio signals.

CHAKRA power amplifiers are the result of over five years continuous development of Linn's amplifier designs.

CHAKRA power amplifiers have been designed to offer true flexibility when building or upgrading an audio or home-theatre system. The wealth of options available for number of channels, power output and connections, enables you to choose the ideal power amplification solution for your system whether it is stereo or surround-sound, passive or active.

Linn's proprietary CHAKRA power amplification technology was first used in the KLIMAX CHAKRA 500 Twin. That same technology has now been employed in this range to offer outstanding performance.

Standout Features:

CHAKRA amplifier technology
The CHAKRA topology uses an array of large bi-polar transistors as 'boosters' around a monolithic (single chip) amplifier IC (integrated circuit). Linn's execution of the monolithic to bi-polar transition is unique, and a patent application for the design has been registered. When output current is less than a few amps, all the power output comes from the monolithic IC, maximising the speed and linear
properties of this design. At higher output currents the bi-polar transistors provide the majority of the output current, leaving the monolithic to operate well within its capability and able to correct any error instantaneously. The topology is very compact, reducing the circuit area and length of the signal path and is also highly efficient, producing much less heat than traditional designs.

Switch mode power supply
A 'switch mode' power supply (SMPS) is incorporated into all CHAKRA models. SMPS is an electronic power supply which converts and regulates the incoming mains voltage, and also provides the internal audio circuitry with excellent electrical isolation from the outside world. The SMPS replaces the bulky, heavy and noisy transformer, as well as a number of other sizeable components.
The major benefits of SMPS over conventional power supplies include: small size, high efficiency, fast response, high mains input tolerance, good load tolerance, low acoustic noise and, with its much reduced material use, environmental friendliness.
Also, SMPS does not emit distortion into the local mains supply, as conventional large power supplies tend to do and if you upgrade from an amplifier with a conventional power supply to the CHAKRA amplifier, aside from the benefits of the improved amplification, the sound of your entire system will almost certainly improve as a result of the cleaner mains supply.

AKTIV* operation
All CHAKRA amplifiers support AKTIV operation.
Standard 'passive' crossovers are driven by the audio signal itself and so some of the signal is effectively lost. AKTIV crossovers are powered by the SMPS (see above) and therefore much more of the audio signal is delivered to the loudspeaker. They are also able to exert a much greater degree of control over the signal and these qualities combine to provide a significant improvement in sonic performance over standard operation.
Your Authorised Linn Retailer can carry out the AKTIV conversion of any CHAKRA amplifier channel with the insertion of a specially designed Linn AKTIV module.

Over-current protection
If the output current goes above the amplifier's designated safe operating level, the affected channels shut down instantly for a few seconds in order to protect themselves and the loudspeaker drive units to which they are connected.

Over-temperature protection
Similarly, if the amplifier's temperature rises above its safe operating limit, the affected channels will cease operation until the temperature drops to a safe level and will then automatically resume.

Please see our photos or the linked manual below for full technical specifications.

Linn Majik C 4100 - Chakra Series Amplifier Manual

The SkyFi Testing Process for Solid State Amplifiers:

We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage.

We then power up the unit carefully and run a simple 1k sine wave while monitoring the output on an oscilloscope for signs of distortion or noise. Finally, we run the amplifier to its full rated power into the appropriate resistive load provided by our Sencore amplifier tester. If there is an issue, it will usually be noticeable at this point. If everything reads clean, we will often test for THD (Total Harmonic Distortion) measured by our Keithley distortion meter, and compare it against the original manufacturers specifications. The amplifier then remains powered on to "burn in" on our test bench for a few hours to make sure there are no heat related issues. If there are balanced inputs available they will be also be tested.

Final testing involves pushing actual music thorough the amplifier. We've learned over time that some issues are only noticeable to a trained ear while listening to familiar source material. Our test bench has reference vintage KEF speakers that we're very familiar with which quickly reveal any discrepancies. Some amplifiers will then move into our listening room where they are tested with our in-house reference speakers of choice.

Please click here for detailed specifics regarding our specialized packing process that separates us from the rest.



Original Box





Not Applicable


Yes - Power

Physical Condition


Working Condition


SKU: 101943