Avalon U5 Mono Instrument and DI Preamplifier
The U5 high-voltage DI-preamp combines a unique passive tone selector with a variable gain preamp and filter. The high input impedance accepts a wide variety of signal levels and instruments from acoustic guitars to high-output active bass guitars and keyboards.
Pure Class A 100% discrete design Smooth musical detail and sonic excellence Variable gain preamp to +30dB. Dual microphone and line outputs Hi-Z 3 000 000 ohm input impedance Very low noise -100dB High headroom +30dB Six tone bank selections. DC coupled Class A output for superior bass High cut switch eliminates noise LED active signal indicator Headphone monitor output jack Low distortion less than 0.5% THD and IMD High level 400 watt speaker input Active to thru selector - ground isolation switch 100% discrete power supplies for audio path Internal toroidal power supply for low noise Long lasting stainless steel hardware
Circuit Topology:100% discrete high-voltage Class A Gain:Switched 3dB steps maximum gain +30dB Input Impedance:3 000 000 ohm unbalanced (single ended) Maximum Input Level +24dBu unbalanced 400w speaker input Output Connectors (2): XLR type pin 2 hot electronic balanced Maximum Output Level (Class A):+30dBu DC coupled balanced 600 ohms (mic and line out) Headphone Output:0.5w into 600 ohms Noise 20kHz Unweighted: -100dBu minimum gain position Distortion THD IMD:0.1% at +10dB Frequency Response -/+0.5dB:5Hz to 100kHz Frequency Response -3dB:1Hz to 500kHz (input band limited) High Cut Filter: -3dB at 8kHz minimum phase design Tone Selector: Six position rotary switch all passive filters AC Power:Internal toroidal AC supply Dimensions: 8.5 x 3.5 x 12 in (216 x 88 x 305mm) Weight-Packed: 12lbs (5.4kg)