Avalon Design Ultra-5

Class-A Discrete Instrument Preamp Daily Rate: $20

Features | Technical Specifications | Support

The Avalon Ultra Five is the most powerful direct box available. Variable gain Class A preamplifier to boost low-level pickup signals and a high-level speaker input for capturing the live sound of the instrument's amplifier. Six passive tone-EQ curves enhance a variety of acoustic and electric instruments. Twin DC-coupled Class A output amplifiers drive both low-level mic preamp inputs and high-level +4dB inputs for direct-to-tape recording or processing. Direct box has dual mic and line outs, very low noise -100dB, high headroom +30dB, low-pass filter, LED active signal indicator, headphone out.

FEATURES:

• 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

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TECHNICAL SPECIFICATIONS:

 

	U5 SPECIFICATIONS
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)
Rack mount kit (1) RM-1:	Single U5 19 inch rack mount kit (holds one half rack unit)
Rack mount kit (2) RM-2:	Dual U5 19 inch rack mount kit (holds two half rack units)

 

 

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SUPPORT DOCUMENTS, DOWNLOADS AND MANUALS:

• Avalon Ultra-5 Direct Box Brochure (PDF, 598.5 M)

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