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Avalon U5 Pure Class A Mono Instrument DI-Preamplifier

Item #: 
1413571835199821954
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Product Description:

On the gig, a good quality DI is good to have. In the studio, a great one is essential, and here it is. The Avalon U5 has earned a revered home in the pantheon of studio equipment. Miking a bass speaker has its charm, but the noise and inconsistent dynamic response can make the mixing process a challenge. The U5 solves the problems of dynamics and ...  Click To Read More About This Product

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Overview

On the gig, a good quality DI is good to have. In the studio, a great one is essential, and here it is. The Avalon U5 has earned a revered home in the pantheon of studio equipment. Miking a bass speaker has its charm, but the noise and inconsistent dynamic response can make the mixing process a challenge. The U5 solves the problems of dynamics and noise by way of 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. The U5 direct box is loaded with sonic character and user features professionals demand.

Sonic excellence
The Avalon U5 Pure Class A instrument DI & preamplifier is the most powerful direct box available today. Designed to optimize absolute signal integrity and musical performance, the U5 includes many features and sonic excellence unequaled by lesser designs. The U5 is ideal for bass guitar and acoustic instruments, electric guitars, keyboards, synthesizers and low output pickups.

Features include state-of-the-art, high input impedance input stage for zero load effect on sensitive pickups and keyboards, 100% discrete, Pure Class A signal amplifiers, practical user features and rugged hardware designed to deliver true high performance audio for many years.

Designed for deep & controlled bass
Avalon U5 DI-preamps have been in use around the world since 1995. They have found their way into the world's leading musicians rigs and recording sessions and been featured on thousands of the best selling (and sounding) albums and live performances.

Minimum signal path design
The U5 includes a variable gain Class A preamplifier to boost low level pickup signals and a high level speaker input for capturing the live sound of the instruments amplifier. Six passive tone-EQ curves are also included to enhance a variety of acoustic and electric instruments. A high-cut switch eliminates unwanted acoustic pickup and high frequency noise, while a headphone monitor amp has been included for personal listening. Twin DC coupled Class A output amplifiers drive both low level microphone preamp inputs and high level +4dB inputs for direct to tape recording or processing. The active-to-thru switch selects either the instrument input directly or sends the boosted-equalized signal to the amplifier via the front panel jack. A ground isolation switch eliminates any possible earth loop or AC buzz problems with complete safety.

Features

Pure Class A, 100% discrete design
Variable gain preamp to +30dB.
Dual microphone and line outputs
Very low noise (-100dB) and high headroom (+30dB)
DC coupled Class A output for superior bass
High cut switch eliminates noise
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
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)
Pro Coverage
Manufacturer's Warranty
One year parts and labor warranty. 90 day warranty for tubes.


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