SKU: 550795238

Avalon Design U5 Mono Instrument and DI Preamplifier with Six Passive Tone-EQ Curves

Sale price$70434.00 Regular price$78260.00
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Description

Avalon Design U5 Mono Instrument and DI Preamplifier with Six Passive Tone-EQ CurvesThe U5 is a Pure Class A instrument DI and preamplifier. Designed to optimize signal integrity and musical performance, the U5 is ideal for bass guitar and acoustic instruments, electric guitars, keyboards, synthesizers and low output pickups. The U5 combines a unique passive tone selector with a variable gain preamplifier and filter. The high input impedance accepts a wide variety of signal levels. Features include a state of the art, high input

The U5 is a Pure Class A instrument DI and preamplifier. Designed to optimize signal integrity and musical performance, the U5 is ideal for bass guitar and acoustic instruments, electric guitars, keyboards, synthesizers and low output pickups.

The U5 combines a unique passive tone selector with a variable gain preamplifier and filter. The high input impedance accepts a wide variety of signal levels. Features include a state-of-the-art, high input impedance input stage for zero load effect on sensitive pickups and keyboards, 100% discrete and Pure Class A signal amplifiers. 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 on the U5 for personal listening. Twin DC coupled Class A output amplifiers drive both low level microphone preamplifier 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.

Pure Class A, 100% discrete design
Smooth musical detail and sonic excellence
Variable gain preamp to +30dB
Dual microphone and line outputs
Very low noise
High headroom
Six tone bank selections
DC coupled Class A output for superior bass
High cut switch eliminates noise
Headphone monitor output jack
High level 400 watt speaker input
100% discrete power supplies for audio path
Internal toroidal power supply for low noise
In the Box
Avalon Design U5 Mono Instrument and DI Preamplifier with Six Passive Tone-EQ Curves
  • Power Cord
  • One (1) Year Warranty
Input Connections 2 x 1/4" TS phone
Output Connectors 2 x XLR
1 x 1/4" TRS headphone
Input Level +24dBu unbalanced, 400w speaker input
Output Level +30dNu DC coupled, balanced 600 Ohms (mic and line out)
Frequency Response 5Hz to 100kHz, +/-0.5dB
Noise -100dBu, minimum gain position
Power Internal toroidal AC supply
Dimensions (WxDxH) 8 1/2" x 12 x 3 1/2"
Weight 12 lbs
Specialties Rack mount kits available for mounting either one or two units into 19" racks
Packaging Info
Package Weight 11.85 lb
Box Dimensions (LxWxH) 17.48 x 12.598 x 6.457"
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 550795238

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Amazon Customer
Lexington, US
★★★★★ 4
more power
get more horse power & gas mileage
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Reviewed in the United States on April 19, 2026
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Stymy
Lexington, US
★★★★★ 5
It Fits
it s fit and works like other K &N products
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Reviewed in the United States on July 8, 2025
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Mason
Chelsea, US
★★★★★ 5
Great product
Size: 9.3" x 9.7" x 1.8"
I recently installed the BOSCH 6029C HEPA Cabin Air Filter, and the difference was noticeable right away. The air inside my car feels much cleaner and fresher, especially when driving in traffic or through areas with a lot of dust and pollution. It does a great job filtering out odors, pollen, and even fine particles—I’ve had fewer allergy issues since switching to this filter. Installation was straightforward and only took a few minutes, even without much mechanical experience. The build quality is solid, and it fits perfectly without any gaps or issues. Compared to standard cabin filters, this HEPA version is definitely a step up in terms of filtration performance. Overall, I’d highly recommend this to anyone looking to improve their in-car air quality. It’s a small upgrade that makes a big difference in comfort, especially for daily drivers or people sensitive to allergens.
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Reviewed in the United States on April 3, 2026
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Chad I
Belleville, US
★★★★★ 5
Good quality!
Size: 9.3" x 9.7" x 1.8"
This cabin air filter is seriously a game-changer for my car's interior air quality. I was getting tired of that stale, dusty smell every time I turned on the AC. Swapping it out was surprisingly easy, and the difference was noticeable almost immediately. It really does trap all those tiny particles, like pollen and dust, that used to make my allergies flare up. Now, the air inside my vehicle feels so much fresher and cleaner. I've been recommending this brand to all my friends who are looking for a reliable filter. It's definitely worth the investment for a more comfortable driving experience. Seriously, if you're on the fence, just go for it!
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Reviewed in the United States on May 19, 2026
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Bartek
Fort Morgan, US
★★★★★ 5
Noticeable upgrade in air quality and a seamless installation
Size: 9.3" x 9.7" x 1.8"
I'm generally skeptical of the "HEPA" marketing for automotive filters, but after installing this in my Honda, the reduction in exterior odors—especially exhaust and pollen—is actually significant. The construction feels far more robust than the flimsy OEM paper filters I’ve used in the past; the pleats are dense and well-reinforced, which gives me more confidence in its filtration efficacy over a 12,000-mile interval. Installation was straightforward and took less than five minutes. It’s a precision fit with no gaps around the edges, ensuring that all intake air is actually being routed through the media rather than bypassing it. One thing to note is that you might notice a very slight decrease in max fan velocity due to the increased density of the HEPA material, but the tradeoff for cleaner air is well worth it in my opinion. If you live in an area with high pollution or suffer from seasonal allergies, this is a legitimate quality-of-life improvement for your daily commute.
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Reviewed in the United States on February 26, 2026

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