Demeter HDI-1 Stereo Tube Direct Line Driver
The H Series Tube Direct (HDI-1) is a versatile new addition to the Demeter line of tube pro audio equipment. Demeter Amplification, the originator of the first commercially available Tube Direct Box has taken the technology to a new level with this innovative product incorporating the same tube driven ultra high impedance input (27 meg ohms) found in the original Tube Direct (to prevent instrument pickup loading) and a new balanced line level output section. The unit can be used as both line level direct instrument input or as a line level driver to add tube warmth to line level digital interfaces.
The front panel features two independent channels, with seperate 1/4" inputs, ground lift, phase preset, unity gain (+6dB with balanced output) and a tube driven (Cathode input plate output) boost mode with 20dB of boost controlled by a continuously variable volume control and a unity gain low impedance tube driven output to drive external instrument amplifiers or effects. The rear Panel features seperate TRS and 3 pin connectors for each channel. As with all H series units the power supply is fully regulated (for low noise) supplying 220v B+ to the tubes. Hand built in the U.S.A. with the finest components available.
Input impedance 27 megohm
Output impedance 50 ohm
THD @ 1 KHz .035% unity
Bandwidth 20 to 20 KHz
Signal to noise -98dB
Output @ 600 ohms +28dB
Outputs TRS 3 pin rear 1/4" mono front
Operating voltage 230/115V AC
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