Tona T20/40 – Moving Coil Step-Up Transformer


The TONA T20/40 SUT step-up transformer, is targeted enthusiasts and intended for moving-coil type cartridges. These traditionally provide a very low signal, and are difficult to amplify without noise.

The transformer is a match for tube amplifiers, as the very high gain at 1:40 can be an advantage. Can also be used with a (tube) MM RIAA with a good dynamic range at high levels.
At the same time, 1:20 with a more all-round gain, is usable for most cartridges with low output.
Tona T 20/40 has two separate inputs with separate windings on the primary side.


• two inputs 1:20 and 1:40
• mahogany / oak
• connectors can be customized as well the choice of balanced / unbalanced operation
(contact Sallingboe Audio for further details)
• laminated soft iron case with 8 to 20 mm overall thickness
• toroidal nanocrystalline transformers wound inhouse.
• the transformers are induction matched in stereo pairs before and after winding
• matched in stereo 0.2 dB 20Hz-20kHz
• handwired litz primary windings
• stable heavy base accepts all XLR and RCA cables
• 2 years warranty

Gold plated CMC RCA connectors, silver plated Neutrik XLR connectors

125 x 150 x 50 mm 4.9″ x 5.9″ x 1.96″ without frame
159 x 184 x 50 mm 6.25″ x 7.25″ x 1.96″ with frame
Total height: 63 mm 2.48″
Weight: 4.6 Kg 10 lbs