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Countryman Type 85S Stereo Direct Box

The Type 85S puts two channels of the Type 85 class A FET circuit in one case, with several input connector options including RCA and 1/8 in, transformer isolation rated above 500 V from instrument ground to XLR pin 1, and cross-talk rejection better than 105 dB across the band.

Each channel is built from hand-selected discrete components in a single-ended class A topology, and like the single-channel Type 85 it can isolate ground even while running on phantom power. Phantom on Channel A powers the whole unit; with no phantom it runs about 130 hours on one internal 9 V alkaline. Note the polarity difference worth checking on a shared stage: the Type 85S is pin 2 positive while the single-channel Type 85 is pin 3 positive.

TypeTwo-channel active class A FET direct box with transformer isolation
Frequency Response20 Hz to 20 kHz (+/- 1 dB)
Cross-Talk RejectionGreater than 105 dB (20 Hz to 20 kHz)
Input Resistance10 MOhm (0 dB pad); 20 kOhm on RCA and 1/8 in inputs
Power Options48 V phantom (1.6 mA, Channel A powers the unit) or 9 V battery
Output PolarityPin 2 positive (the one-channel Type 85 is pin 3 positive)
Dimensions / Weight6.25 in x 4 in x 2 in (152 x 77 x 45 mm); 31.2 oz (0.88 kg)
Countryman Tough DIs
Direct Box Phase Inversion