SKU: 31531664124

Unison Research Preludio Integrated Amplifier

Sale price$3060.00 Regular price$3400.00
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

Unison Research Preludio Integrated AmplifierPreludio Part of our classic line of tube amplifiers that include the Sinfonia and the Performance, the Preludio integrated amplifier continues the technical approach, sound and aesthetics of its larger siblings. While the Preludios appearance is certainly gorgeous, it is also extremely reliable due to its unique design solutions, quality materials and adherence to the highest of standards. Preludio is an integrated tube amplifier that maintains the

Preludio

Part of our classic line of tube amplifiers that include the Sinfonia and the Performance, the Preludio integrated amplifier continues the technical approach, sound and aesthetics of its larger siblings. While the Preludio’s appearance is certainly gorgeous, it is also extremely reliable due to its unique design solutions, quality materials and adherence to the highest of standards.

Preludio is an integrated tube amplifier that maintains the distinctive technical elements, sound characteristics and stunning looks that Unison Research is known for. It bears an obvious resemblance to the higher-end Sinfonia and Performance amplifiers, but maintains a very appealing price for a product of such prestige.

Using double triode ECC82 valves the Preludio’s pre and power amplification gives an exclusively valve amp performance that delivers a natural and dynamic presentation.

Special attention has been dedicated to the design of the output stage, which is based on two KT88 tubes. Tried and extensively tested, the bias setting of the KT88s ensures the best sound performance even after many years, and also contributes to minimising the time it takes for the tubes to warm up to optimal temperature.

Every part of the Preludio has been thoroughly thought out from the circuit boards to the control knobs to offer a premium design and a premium sound. For example, the top-plate is not just good looking, it's made from amagnetic stainless steel with low heat conduction to stop the heat generated by the KT-88s interfering with the internal circuitry.

Key Features:

  • Stylish tube integrated amplifier
  • Dedicated pre, power and output stages per channel
  • Tube-based Class A amplification
  • 5 gold platted inputs
  • High quality powered design
  • KT88 tubes in the output stage
  • RC2 remote included
  • Premium Cherry Wood finish
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: 31531664124

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4.8 ★★★★★
Based on 17 reviews
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Ryan B
Chelsea, US
★★★★★ 5
Almost perfect shoe for any use.
Size: 9.5, Color: Steel Grey/Cloud Grey
Almost the perfect shoe for anything if you get the right size. I sent back 1st pair, no reviews on new model so found out hard way sizing is a bit off. Definitely size down a half size! They are long! Also note that if you're feet are at all wide, go for wide version. I have normal width(4 1/4 at widest point) feet and its snug on me. My only real complaint about these shoes is they could use about 10% more arch. My arch is medium height. They're so comfortable I didn't even notice until the end of a long work day. Could also just be due to my current (194) weight. Color/design is fantastic, though I would like to see more color options like previous models had. Hopefully they just haven't launched full line-up yet, since I purchased in first month of availability. Also, these are seriously better than my expensive Kayano lite 2's.
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Reviewed in the United States on March 19, 2026
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Stormy
Belleville, US
★★★★★ 5
Love these
Size: 1 Big Kid, Color: Pearly Pink
Such a cute jelly shoe, comfortable fit, and doesn't make your feet smell. Great quality jelly shoe
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Reviewed in the United States on June 8, 2025
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L.Klein
Chelsea, US
★★★★★ 5
Cute but size up
Size: 5 Toddler, Color: Beige Silver Glitter, Size: 5 Toddler, Color: Beige Silver Glitter
These are super cute, made well, feel much more solid than any other jellies we’ve purchased but size up. These are the size 5 Melissa jellies against the size 5 Sophia Grainge Mary Jane’s. These Melissa wouldn’t go on her foot, the SG Mary Jane was huge.
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Reviewed in the United States on May 14, 2025
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Raghu Kona
Chelsea, US
★★★★★ 5
Love it. Great Quality Sandals for decent price 👌
Size: 2 Big Kid, Color: Pearly Pink
Soul is pillow soft and really worth the price.
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Reviewed in the United States on April 26, 2026
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Dancing Nancie
Bozeman, US
★★★★★ 4
Runs small
Size: 3 Big Kid, Color: Pearly Pink
Runs a whole size small. Glad I read the reviews before purchasing and bought another pair a whole size up. My daughter is a size 3 big kid and the 4 fit her. Cute shoe, weird smell.
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Reviewed in the United States on May 29, 2026

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