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Introducing the Iron Age Audioworks Portia Street Stomp
Old 1 week ago
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Introducing the Iron Age Audioworks Portia Street Stomp

Introducing the Iron Age Audioworks Portia Street Stomp-screen-shot-2019-10-31-22.49.37.jpg

Introducing the Iron Age Audioworks Portia Street Stomp

The Portia Street Stomp is a swiss army knife for tone shaping born out of a late night session with Dylan Ely, owner of the Portia Street Studio in Los Angeles. Dylan does a lot of work at home and at other studios and wanted a portable solution to give some weight to a signal. The Stomp was our solution. ​
The Portia Street Stomp uses a wonderfully low inductance Cinemag steel core transformer with quadrifilar windings (four identical windings). This allows for a variety of configurations to get a wide range of tones out of the both the transformer itself and the driving circuit.

The Stomp allows you to vary the tone in three ways:

• The transformer “Ratio” switch selects between four configurations. Two configurations are effectively 1:1 but use 1 or 2 windings to increase or decrease the total inductance (which will enhance the behavior of the “Primary” knob). In 1:2 and 2:1 mode there will be a 6 dB step up or step down respectively, and the load being presented to the source amplifier will also change.

• The “Primary” knob allows the source impedance presented to the transformer to be changed continuously, which increases the harmonic distortion of the passive circuit and slightly changes the frequency response. 

• The “Secondary” knob allows the load across the transformer secondary to be varied. This will change the current drive of the source amplifier. A lower load will increase the current demand at a given signal level, which will cause more distortion from the source amplifier. The load pot will also interact with the transformer windings to change the overall tone.

Each channel also has a true bypass in/out switch and a ground lift circuit between the input and output.

Product page: https://www.ironageaudioworks.com/portia-street-stomp
MAP: $550

Available: In stock now!
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Old 1 week ago
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Looks cool. Very tidy.
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