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Avenson Audio SmallDI  From Avenson

Small, active, transformerless, phantom powered DI box

Avenson Audio

Manufacturer's Description from Avenson

This phantom powered active DI is the perfect instrument interface. It transparently passes the sound of your instrument to the preamp without adding its own sound.

The Small DI has a very high impedance input FET buffer inside designed for wide bandwidth and clean reproduction. The buffer circuit runs on +48V phantom power and is unity gain.

One of the best features of the Small DI is that it comes before the preamp, so that your input signal uses all the electronics of the preamp.  The Small DI is also the perfect accessory for microphone preamps that don’t have a DI.  Its also great for preamps that put the DI input in an inconvenient place like the back! It’s not much bigger than an XLR connecter and at only 3.25" long it fits anywhere unobtrusively. 

The red LED tells you when phantom is turned on making last minute troubleshooting easier. 

Avenson Audio

About Manufacturer

Makers of an affordable set of serious omni's, Avenson Audio's hand built microphones are quickly being recognized among the industry as the best sounding omni in its price range. Avenson microphones are manufactured in very limited quantities and allow project studios and tapers to get into a level of omni-directional performance for much less than their competitors with a performance-quality that equals sound quality of omni’s in a substantially higher price category.


Topology transformerless FET
Input Impedance 10 MΩ
Input Overload Level +12 dBu at 1% THD
Gain -0.2 dB
Frequency Response 10 Hz – 100 kHz (+0/-0.25 db)
Signal to Noise (A-weighted) ≥ 108 dB
Output Impedance 150Ω (load ≥ 1kΩ )
Power Requirements P48 phantom power (~5 mA)
Weight 2.8 oz (81 g)