Audio Note Kits - Moving Coil Step-up Kit

Audio Note Moving Coil Step-up Kit

Transformer-based step-up for moving coil cartridges

Back in Stock!

The new Step Up Kit is now available - We have been working on this product for quite a while!

Coupled with our new L3 Phono Stage kit we have a wonderful high-end moving coil solution now. With the step-up kit you can configure loading resistors and step-up ratio which makes it very customizable - The unit is very well grounded which makes is superbly quiet.

We have an excellent manual packed full of color pictures that you can check out HERE in low res download format.

Andy Grove has designed the moving coil step-up transformers for the product, which can be wired for either 1:10 or 1:20 step-up configurations.

We have a guide for selecting the correct loading resistors in order to match your moving coil cartridge with cartridge and phono stage.

An ideal match for our L3 Phono Stage

Andy Grove (Audio Note design engineer) writes...

The AudioNote Kits step-up transformer is configurable as 1:10 or 1:20 ratio, offering gains of 20dB or 26dB respectively. These two ratios are suitable for medium to high output moving coil cartridges, with output from around 0.25mV up to 1mV. The load a transformer reflects is proportional to the square of the turns ratio, so 1:10 gives an impedance transformation of 1:100, and the 1:20 gives a transformation ratio of 1:400. When loaded with the 47k of a standard phono stage the reflected impedances will be 470 ohms, and 117.5 ohms, usually the lower output cartridges require a lower impedance load, in the hundred-ohm range. If the 470 ohms or 117.5 ohms loads are way outside the specified load for your cartridge then extra loading resistors can be added at the secondary to correct the impedance if necessary, but generally medium output cartridges are fairly load tolerant...

Click here to read the entire article where Andy Grove discusses his design in depth.

Standard Configurations and Pricing

Moving Coil Step-up Kit

$525 USD - complete with Chassis/Cover, 2 step-up transformers, all hardware, 4x AN silver RCA's, PTFE wire, loading resistors (enquire for tantalums to match your step-up requirements), and hard-copy manual.

Andy Grove discusses his design of the Moving Coil Step-up Kit

What's good about a moving coil transformer?
A technical article by Andy Grove

General Upgrade Information

Interstage Mono Blocks Kit1 300B/2A3 - 5th Anniversary Edition Kit2 6550 L4 Series EL34 Power Amplifier L3 Remote Pre-Amplifier Kit L3 Line Pre-Amplifier Kit L3 Phono Stage Kit Moving Coil Step-up Kit L2 Pre-Amplifier Kit DAC Kit 3.1 Balanced / RCA DAC Kit 2.1 Level A and B DAC Kit 2.0 Speaker Kit AN/E Kit4 Push Pull Amplifier