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Avalon U5 - User Manual

Avalon U5
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U55
AVALON
Ultra-Five
DIRECT BOX
Pure Class A
DESIGNAVALON
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Summary

U5 High Voltage Direct Box Overview

Key Features

Highlights include discrete Class A path, tone shaping, headphone output, and ground lift.

Operating Instructions

Guidance on power selection and using the boost control for gain adjustment.

Tone Bank and Control Functions

Tone Bank Selections

Six frequency curves for musically enhanced sonic character with graphical representations.

High Cut Switch Function

Provides a gentle roll-off in upper octaves to eliminate noise and buzz.

Speaker Input Operation

Bypasses front input, selects rear speaker jack; maximum 400W power input.

Signal LED Indicator

Illuminates when output signal reaches -2dB at line out XLR, indicates signal presence.

Active to Thru Switch

Selects thru jack for boost/tone path, normals passive input when not selected.

Tone Switch Operation

Engages passive tone-bank; adjust boost if loudness drop occurs.

Technical Specifications

Circuit Topology and Gain

100% discrete Class A design with switched 3dB gain steps up to +32dB.

Input and Output Levels

Max input +24dBu, speaker input 400W; max output +28dBu balanced.

Frequency Response and Distortion

Response 5Hz-100kHz (+/-0.5dB), Distortion THD/IMD 0.05% at +10dB.

High Cut Filter Specification

Set at -3dB at 1.8kHz with a minimum phase design.

Tone Selector Categories

Details instrument types for each of the six tone selector settings.

AC Power and Dimensions

Selectable AC supply (100-240V), 20W max; dimensions and weight provided.

Summary

U5 High Voltage Direct Box Overview

Key Features

Highlights include discrete Class A path, tone shaping, headphone output, and ground lift.

Operating Instructions

Guidance on power selection and using the boost control for gain adjustment.

Tone Bank and Control Functions

Tone Bank Selections

Six frequency curves for musically enhanced sonic character with graphical representations.

High Cut Switch Function

Provides a gentle roll-off in upper octaves to eliminate noise and buzz.

Speaker Input Operation

Bypasses front input, selects rear speaker jack; maximum 400W power input.

Signal LED Indicator

Illuminates when output signal reaches -2dB at line out XLR, indicates signal presence.

Active to Thru Switch

Selects thru jack for boost/tone path, normals passive input when not selected.

Tone Switch Operation

Engages passive tone-bank; adjust boost if loudness drop occurs.

Technical Specifications

Circuit Topology and Gain

100% discrete Class A design with switched 3dB gain steps up to +32dB.

Input and Output Levels

Max input +24dBu, speaker input 400W; max output +28dBu balanced.

Frequency Response and Distortion

Response 5Hz-100kHz (+/-0.5dB), Distortion THD/IMD 0.05% at +10dB.

High Cut Filter Specification

Set at -3dB at 1.8kHz with a minimum phase design.

Tone Selector Categories

Details instrument types for each of the six tone selector settings.

AC Power and Dimensions

Selectable AC supply (100-240V), 20W max; dimensions and weight provided.

Avalon U5 Specifications

General IconGeneral
Power SupplyInternal
Channels1
Power SourceAC
Maximum Output Level+30dBu
Dimensions8.5 x 3.5 x 10 inches
Inputs1 x XLR, 1 x 1/4"
Outputs1 x XLR
THD + NLess than 0.5%

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