Lundahl LL1941 Amorphous Core Moving Coil Input Transformer

The Lundahl LL1941 is a cost-no-object moving coil step-up transformer for low-output MC cartridges, combining an uncut amorphous cobalt core, dual-coil construction, Cardas high-purity copper wire and mu-metal shielding.

Frequency response
10-100 kHz
Transformer Type
Moving Coil Input Transformer
Core Material
Amorphous cobalt

€274.95

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SKU: LL1941 Categories: , ,
Description

Highlights of the Lundahl LL1941

  • High turns-ratio moving coil step-up transformer for low-output MC cartridges
  • Uncut amorphous cobalt core with oversized dual-coil construction
  • Cardas high-purity copper wire for uncompromising signal handling
  • Mu-metal can improves shielding against external magnetic fields
  • Connection options for 1:16 and 1:32 step-up ratios
  • 10 Hz to 100 kHz frequency response at +/- 1.0 dB in serial connection

 

Product details Lundahl LL1941

Lundahl LL1941 Amorphous Core Moving Coil Input Transformer

 

The Lundahl LL1941 is designed as a premium audio component for moving coil cartridge input stages. It is a high turns-ratio version of Lundahl’s LL1931 moving coil step-up transformer, developed specifically for low-output MC cartridges where maximum signal integrity and low noise pickup are essential.

 

At the heart of the LL1941 is Lundahl’s unique uncut amorphous cobalt core, combined with a dual-coil structure and Cardas high-purity copper wire. This oversized construction is intended to deliver the best possible MC transformer performance, while the dual-coil layout greatly improves immunity to external magnetic fields from power supplies, motors and similar sources in high-end home audio systems.

 

The transformer offers a turns ratio of 1 + 1 : 16 + 16 and supports multiple connection alternatives, including serial-serial connection for 1:16 and parallel-serial connection for 1:32. In serial connection with a 10 Ω source and open secondaries, the LL1941 delivers a frequency response of 10 Hz to 100 kHz within +/- 1.0 dB.

 

For integration into a phono preamplifier or custom MC input stage, the LL1941 is housed in a mu-metal can and uses PCB pins with 5.08 mm spacing and 30.5 mm row spacing. The transformer measures 43 x 28 x 22 mm above the PCB and weighs 90 g. Each primary has a static resistance of 0.8 Ω, each secondary has a static resistance of 105 Ω, and isolation is rated at 3 kV between windings and 1.5 kV between windings and core.

Specifications

Article numberLL1941
EAN9505853711727
Transformer TypeMoving Coil Input Transformer
Core MaterialAmorphous cobalt
Turns Ratio1 + 1 : 16 + 16
Tolerance+/- 1.0 dB
Frequency Response10-100 kHz
Dimensions (L x B x H)43 x 28 x 22 mm
Article numberLL1941
EAN9505853711727
Additional information
Transformer TypeMoving Coil Input Transformer
Core MaterialAmorphous cobalt
Turns Ratio1 + 1 : 16 + 16
Tolerance+/- 1.0 dB
Frequency response10-100 kHz
Dimensions (L x B x H)43 x 28 x 22 mm
Shipping & Delivery
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