Our employee is happy to help you find the right product
The Lundahl LL1544A is a compact general-purpose audio transformer for line input, bridging input and microphone input applications, with flexible connection options and excellent low-level and high-level performance.
Lundahl LL1544A General Purpose Audio Transformer
The Lundahl LL1544A is designed for use as a line input and general-purpose transformer in demanding audio components. It suits a wide range of applications, from bridging input configurations to microphone input circuits, and supports both balanced and unbalanced source and load connections.
Its construction uses two three-section coils with interleaved Faraday shields and a two-component amorphous strip core. This core combines high sensitivity at very low signal levels with strong high-level capability, while also helping to maintain excellent low-frequency phase response. For builders working with precision electromechanics, the LL1544A offers a compact and versatile transformer platform.
The LL1544A provides multiple connection alternatives, including 1:1, 1:2, 2:1 and 4:1 ratios depending on the selected winding configuration. Typical static resistance is 130 Ω per primary and 260 Ω per secondary, with a self-resonance point above 220 kHz. With a 600 Ω source and the recommended 6.7 kΩ + 470 pF termination in parallel with 56 kΩ, frequency response is 10 Hz to 70 kHz within ±0.5 dB at 0 dBU, with only 0.2 dB loss at 1 kHz.
The transformer is made for PCB mounting, with 2.54 mm pin spacing, 22.86 mm row spacing and a recommended PCB hole diameter of 1.5 mm. Isolation is rated at 3 kV between windings and 1.5 kV between windings and shields, making it suitable for compact professional and DIY audio circuit designs where flexible input transformer wiring is required.
Show more
Show more
There are no reviews written yet about this product..
Home audio 
Audio components 
Crossover components 
Test & measurement 
DIY kits 
Accessories 
New products 
Speakers
Amplifiers
DAC converters
DSP modules
Turntables
Streamers
Woofers
Tweeters
Exciters
Bass shakers
Plate amplifiers
Amplifier modules
Single board computers
Assembled crossovers
Printed Circuit Boards (PCB)
Capacitors
Resistors
Coils
Circuit Breakers
Crossover tools
Screw terminals
Acoustic measurements
Electric measurements
Sound level meters
DIY amplifier kits
DIY component packs
DIY speaker kit
DIY subwoofer kits
DIY bluetooth speaker
DIY electronics kits
Binding posts
Cabinet Hardware
Cables
Connectors
Speaker cabinets
Electromechanics
Power supplies
Speaker repair
Workshop & tools
Amplifier accessories
Stands & mounts
Gift voucher
Books
New products
Speakers
Amplifiers
DAC converters
DSP modules
Turntables
Streamers
Woofers
Tweeters
Exciters
Bass shakers
Plate amplifiers
Amplifier modules
Single board computers
Assembled crossovers
Printed Circuit Boards (PCB)
Capacitors
Resistors
Coils
Circuit Breakers
Crossover tools
Screw terminals
Acoustic measurements
Electric measurements
Sound level meters
DIY amplifier kits
DIY component packs
DIY speaker kit
DIY subwoofer kits
DIY bluetooth speaker
DIY electronics kits
Binding posts
Cabinet Hardware
Cables
Connectors
Speaker cabinets
Electromechanics
Power supplies
Speaker repair
Workshop & tools
Amplifier accessories
Stands & mounts
Gift voucher
Books
New products
