Avalon U5 Manual 

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U5 HIGH VOLTAGE DIRECT BOX

U5 HIGH VOLTAGE DIRECT BOX The Avalon Ultra-Five Direct Box converts instrument signals and high- level speaker-amplifier outputs to fully balanced, pure Class A line and microphone level direct outputs. The U5 incorporates many unique and creative features: 100% discrete, pure Class A balanced signal path for true musical character and powerful dynamic output drive. Instrument and speaker level inputs. Six bank "Tone" selector curves for custom tone shaping. Variable "Boost" for wide gain variations and level matching. Hi-cut filter for eliminating unwanted high frequency noise. Personal headphone monitor output. Twin XLR balanced mic and line level outputs, DC coupled for deep controlled bass response. Earth isolation "ground lift" switch. Operating Instructions Check AC power selector for correct local supply. This switch is located internally at the rear right side and can be seen through the cooling vents.C Boost control: Boosts gain from +2dB to +32dB in 3dB steps. The HiZ input will accept high level "hot" signals from active bass guitars and keyboards up to a maximum input of +24dB.

Six "tone bank" selections provide a wide range of musically

enhanced frequency curves for improved sonic character. High cut switch: Speaker to input: Signal LED: Active to thru switch: Tone switch: The high cut switch gives a gentle roll off in the upper octaves and eliminates unwanted noise and buzz. The speaker switch bypasses the front panel input and selects the rear mount speaker jack. The maximum speaker power input is 400 watts. Always use your your speaker cabinet with youramplifier. THIS INPUT IS NOT A SPEAKER LOAD!The blue signal LED illuminates when the output signal reaches -2dB at the line out XLR. This LED gives a visual indication of signal being present. This is not an overload indicator!The active to thru switch selects the thru jack to the "boost and tone" signal path. This enhanced signal is then routed to your amplifier or playback system. The thru jack normals the passive input signal in parallel when not selected. The tone switch brings the passive tone-bank into the signal path. You may hear a small drop in loudness due to the enhanced frequency curve. Adjust the boost control if additional gain is required. 1 acoustic and string instruments, electric bass and keyboards 2 electric bass guitar 3 acoustics, strings, electric and bass guitar and keyboards 4 acoustics, strings electric and bass guitar and keyboards 5 acoustic and electric guitar 6 electric and bass guitar +6 -24 10 0dB 100 1kHz 10k 20k +6 -24 -6 -6 -6 -6 -6 -6 10 0dB 100 1kHz 10k 20k

Maximum input level

Output connectors Maximum output level (Class A) Headphone output Noise 20kHz unweighted Distortion THD, IMD Frequency response, -/+0.5dB Frequency response, -3dB High cut filter Signal LED Tone selector AC power Dimensions Weight 100% discrete, high-voltage Class A Switched 3dB steps, maximum gain +32dB 3,000,000 ohms +24dBu unbalanced, 400w speaker input XLR type, pin 2 hot electronic balanced +28dBu DC coupled, balanced 600 ohms 0.5W into 600 ohms -98dBu line output, -104dB mic output 0.05% at +10dB 5Hz to 100kHz 2Hz to 500kHz (input band limited) -3dB at 1.8kHz minimum phase design LED triggers at -2dB Acoustic string instruments, electric bass guitar and keyboards. Electric bass guitar. Acoustic string instruments, electric and bass guitars and keyboards. Acoustic string instruments and electric guitar. Internal toroidal AC supply 100-120v or 200-240v selectable 50/60Hz, 20w max. 8.5 x 3.5 x 12 in (216 x 88 x 305mm) 7lbs (3.2kg) Avalon reserves the right to incorporate changes in design and in the specifications of this product without prior notice. AVALON DESIGN Avalon Design is a division of Avalon Industries, Inc. © 2002.PO Box 5976, San Clemente, CA 92673 U.S.A. Tel: 949-492-2000 Fax: 949-492-4284 www: avalondesign.com email: [email protected] S P E C I F I C A T I O N S 1. 2. 3 & 4. 5 & 6. U5 HIGH VOLTAGE DIRECT BOX A V A L O N D E S I G N - P U R E C L A S S A

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