Note that this is a discontinued product. You may want to visit the brand's page here to browse their newer products.
What reviewers think
Bloggers and YouTubers have tried this product—so we've summarized their strongest opinions below. Links to full reviews follow.
Product Strengths
- Gorgeous looks with a slim profile and classy, understated aesthetic
- Creamy operating volume control with perfectly balanced weight and resistance
- Lively and expressive sound that is warm and inviting
- Benefits of solid-state power and reliability with a touch of the harmonically rich sound of tubes
- Good clarity from top to bottom
Product Considerations
- Does not have a headphone output
- May not be suitable for listening at loud volumes, as the sound can become bright and aggressive
- Due to its lively character, it may not pair well with every loudspeaker, especially those with a forward presentation
- Availability can be limited due to small batch production in Italy, potentially leading to wait times
- Packaging may not be adequate, potentially leading to damage during shipping
Comparisons (according to reviewers)
- The Unico Primo offers better clarity and a deeper soundstage than the Parasound Halo Hint 6, though the Hint 6 is a more balanced and versatile 'jack of all trades' solution
- The Unico Primo offers a more expressive sound, superior layering, and a more realistic tonal portrayal than the Musical Fidelity M6SI, while the M6SI is more powerful and neutral
- The Unico Primo's sound is considered better than the Advance Paris 8N Classic, offering a more engaging experience despite the 8N Classic having more features
Takeaway: The Unico Primo is a well-made and attractive integrated amplifier that delivers great sound quality. It brings a fun and lively listening experience with a touch of tube warmth.
All
Unico Primo
reviews
Manufacturer details
- Output power: >80W
- Output stage: Dynamic A Class POWER MOSFET
- Polarization: Classe A Dinamic
- Input stage: Triodi A-Class A
- Valve: 1 x ECC83
- Sensitivity: 260mV
- Input impedance: 50 kΩ / 47 pF
- Frequency response: -0.1dB@10Hz / -0.5dB@100kHz
- S/N: 112dB
- THD: <0.003%
- Negative feedback: 10dB
- Damping Factor: >50
- Inputs: 5 line RCA (1 phono optional), 1 tape RCA
- Output: 1 tape RCA, 1 subwoofer RCA
- Power consumption: 380W max
- Dimensions: 43.5 cm x 43 cm x H 9.5 cm
- Net weight: 14 kg / 31 lb
Brand highlights
Taking a step back to look at reviewers' thoughts of the brand's entire lineup—not just this product—what stands out most is the following:
- Unison Research products are hand-crafted in Italy, using locally sourced materials and distinctive design elements like wood trim and stainless steel, creating a unique visual aesthetic.
- They specialize in hybrid amplifier designs, using tubes in the preamp stage and solid-state MOSFETs in the output stage, aiming to capture the sonic benefits of both technologies.
- They custom-design and manufacture their own transformers, tailoring them to specific amplifier models for optimal performance and a unique sonic signature.
- Unison Research designs incorporate minimal stages and often utilize zero feedback, prioritizing sonic purity and a balanced sound across a wide range of music genres.
Select products
Simply Italy
- Positioning: The entry-level integrated amplifier in the Unison Research lineup.
- Description: Offers a compact design with a focus on delivering high-quality sound through its single-ended, ultralinear Class-A output stage. It stands out with its optional USB DAC board, making it versatile for digital audio sources, unlike the more traditional analog-only models like the S6.
Unico Primo
- Positioning: A mid-range integrated amplifier in the Unison Research lineup, offering a balance of performance and affordability.
- Description: Features elegant design and robust build, with a Dynamic A Class POWER MOSFET output stage. Its multiple RCA inputs, including an optional phono stage, offer greater system compatibility compared to the more basic Simply Italy.
Triode 25
- Positioning: A versatile mid-to-high range amplifier, celebrating Unison Research's 25th anniversary with advanced features.
- Description: Notable for its ability to switch between triode and pentode modes, offering flexibility in sound output. Its dual-mode operation and higher power output provide enhanced versatility.
Performance
- Positioning: A premium offering, designed for those seeking high power and classic design.
- Description: Delivers 45 watts per channel with a dual mono design, providing a powerful and immersive audio experience. It surpasses the S6 in power. Its bi-wiring capability and elegant design enhance its functionality.
Reference
- Positioning: The flagship monoblock amplifiers in the Unison Research lineup, offering the highest level of performance.
- Description: Designed for ultimate power and precision, featuring a double parallel single-ended Class-A design. With 80 watts of output power, they exceed the Performance model. Their superior build and advanced technology represent the pinnacle of the lineup.
Our take on the brand
Look inside the brand
Our interview with the brand
What are two key technological innovations or strong opinions that differ you from other brands?
We’re an Italian company that sources everything as locally as possible. Italian through and through—everything we do is done here in Italy. Italian gear really does have its own sound. Sounds more romantic, less analytical. Very listenable. Low levels of ear fatigue.
We’re still hand making tube amps and continually refining them. New innovations in grounding, such as each component being grounded independently so they're really quiet as far as tube amps go, is an ongoing focus—always evolving mature tech.
But we also have new modern tech that's a hybrid of solid state and tube—to give you the best of both worlds. You can run pretty much any speaker you want.
In short, it’s a really easy to listen to sound.
What's your approach to customer support?
What are your favorite tracks for showcasing the strength of your products?
What other products pair best with yours?
Opera speakers are a great pairing because they're under the same parent company . When Unison is voicing their amps, they use Opera speakers, and vice versa.
However we've had no issues with pairing with Unison research. (But if you're looking at tube gear, you do have to be more careful because you do need a more sensitive speaker.)
In fact, are your speakers very technical? Pairing with Unison Research can help tame that a bit.
Used
Unison Research
What if you spend more?
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Product Strengths
- Sweet sounding treble and expressive, emotional midrange
- Detailed across the board, and remarkably easy to listen to
- Strong rhythm, lively sound, excellent articulation, and a very good sense of being there
- Fast dynamics and good three dimensionality
- Voices and instruments are very naturally reproduced
- Connectivity options...
Product Considerations
- Fussy about speakers, ideally speakers should have a sensitivity rating of at least 90dB
- Outputs only 14W per channel, so partnering speakers must be compatible
- May lack a little bass and absolute power
- Not necessarily going to suit everyone's needs, it still has limitations, and will probably not suit those looking for a powerhouse amplifier or for playing rock or classical music at high levels
- Can develop a trace of hardness in loud passages that seems to restrict dynamics a little
Comparisons (according to reviewers)
- Vs Simply Italy, the Preludio is superior and is worth the extra over the cheaper model if funds permit
Takeaway: The Preludio is a well-built amplifier that offers a classy sound with good detail and natural voice reproduction. If partnered with compatible speakers, it can provide an intimate and emotive listening experience.
Video review
Our take on the brand
Many years have passed since Unison Research started a small revolution in the world of hi-fi, presenting the market with its masterpiece—the Act integrated amplifier. Unison Research has since continued to run tests and experiments with the spirit of a technician in love with music, aspiring to find those hidden laws and secret that transform an amplifier into a magic box that can liberate music and give it vitality. We developed many new ideas so that the secret formula for a good amplifier could be completed, resulting in a new version of one of our most famous and beloved products. The Unison Research Unico Nuovo remains firmly at the vanguard of integrated amplifier design, offering audio performance at the highest level with pleasing aesthetics at an affordable price
Product Strengths
- Serious impact and presence along with excellent bass output and control
- Impressively smooth, articulate, and fast
- Good sense of color and a real sense of liveliness to music
- Natural flow and sounds fast and assured
Product Considerations
- Needs to play loud to deliver the full experience of the music
Comparisons (according to reviewers)
- Sounds very powerful, much more so than the 130 watt per channel Class D NAD C389 amp
- Not as liquid overall as the all-tube Rogue Audio Chronostark, but the trade-off is much better bass control and definition
Takeaway: The Unico Nuovo gives music vigor and liveliness, making it great for people who like to dance to their music. It delivers an authentic taste of hifi sound, with both polish and verve.
Video review
Our take on the brand
Product Strengths
- Improved technical details provide finer sound quality compared to the standard model
- Refined circuitry is featured in both the signal path and power supply for improved sound
- Electronic polarization ensures a stable operating point for the power tube, eliminating the need for auto-bias
- It uses KT77 Gold Lion power tubes and EXX82 Gold Lion signal tubes
- A revised output transformer with a five-winding section further improves sound quality
Product Considerations
- Relatively low power output at 10 watts per channel
Takeaway: The Unison Research Simply Italy Black Edition is a tube-based stereo amplifier with refined signal processing and elegant design, offering a special sound experience. It offers everything needed to get started with the special sound philosophy of the Italian hifi manufacturer Unison Research.
Video review
Our take on the brand
Tomorrow's Hi-Fi, Today
With Evo 150, we've brought your audio past and present into the future. With outstanding Hypex NCore Class D amplification and our class-leading StreamMagic streaming platform on board, all you need to do is add speakers to enjoy superb high-resolution audio quality from one elegant, discreet box.
And thanks to its suite of digital and analogue inputs, as well as its high-quality digital-to-analogue converter, Evo can be the heart of your hi-fi system for years to come.
Evo 150
Easy to Set Up, Easy to Upgrade
It couldn't be simpler. Connect Evo 150 to the mains and to your speakers. Open StreamMagic, connect to the network, then fire up your favourite music streaming service. Pick a tune, press play and adjust the volume to suit. When you're ready, you can dig deeper to set Evo 150 up just how you want it, adding functionality as you go.
Evo 150 playing through the StreamMagic App
StreamMagic App
Our StreamMagic app offers full control of Evo, plus access to the world's most popular and high-resolution music streaming services. It's clear, logical and stable – so Evo will do precisely what you want. Alternatively, you may prefer to use the app of your favourite streaming service. Evo's ready for you to listen whichever way you choose.
Model watches TV with Evo in view
Connectivity to Suit Your Needs
Thanks to its suite of digital and analogue inputs, including a built-in phono stage, Evo can be the heart of your system – add a turntable, say, or EVO CD. Video sources can play too, just connect your TV's HDMI output to Evo's ARC input. No matter where your music comes from, Evo 150's ready for it.
Model listens to Evo via headphones
Bluetooth Convenience. Hi-Res Sound Quality
Often nothing's more convenient than streaming via Bluetooth. Evo takes it to the max with aptX HD Bluetooth, which features wireless, high-definition music streaming from compatible devices – including our Alva turntables. And because Evo also transmits with Bluetooth aptx HD, it's perfect for private listening on compatible Hi-Res wireless headphones.
Evo in a lifestyle setting with a turntable and books
Made By Music
Evo 150 uses the best audio components, such as the ESS SABRE ES9018k2m Reference DAC. And then we bring every one of our 55+ years of audio know-how to bear. The result is a performance that celebrates the talent of musicians and producers – one that retains the original raw emotive power and detail.
Model turns the volume knob on Evo
Complete Control
Evo is intuitive and straightforward to operate, no matter if you're using its supplied remote control, our simple yet thorough StreamMagic app, or its physical controls – including the large dual-concentric dial on the unit's fascia.
Evo on a shelf in a lifestyle setting
Neat and Easy Placement
At 317mm wide, roughly the size of a vinyl album sleeve, Evo will sit neatly where you need it to. But thanks to its award-winning deisgn and all-around good looks, it really deserves to be centre stage.
Model adds a vinyl record to Alva
Great for Record Lovers
If you want to connect a turntable, Evo 150's built-in phono stage makes it perfect for decks with with moving magnet cartridges, but no integral pre-amp. That's on top of Bluetooth compatibility with our own Alva turntables.
Evo CD
A New Life for CD
Available separately, Evo CD is the compact disc transport developed to exclusively partner Evo all-in-one players. It shares the same eye-catching design, is crafted from the same premium materials and is engineered to the same exacting standards. Evo CD extracts every piece of musical detail from your discs, then passes it seamlessly to Evo. Your CD collection is now set to join the hi-fi evolution.
Detail shot
Designed to Thrill, Built to Last
Evo's confident sound, timeless looks and premium materials mean that you've found your new long-term musical partner – bringing pleasure to both your ears and eyes for many years to come.
Product Strengths
- Packs many features into a small frame, offering an 'all-in-one' solution by integrating streaming, DAC, preamp, and amplification
- The sound quality is clear, detailed, smooth, refined, articulate, and neutral, with good soundstage and imaging
- Offers a wide array of input options (analog and digital) and streaming service compatibility, making it versatile
- Its Class D amplification (Hypex NCore) is powerful (150Wpc) and efficient, running cool compared to traditional amps
- The industrial design and aesthetics are highlighted positively, with its sleek look, swappable side panels, and user-friendly interface, enhancing its lifestyle appeal
Product Considerations
- The headphone preamp may not satisfy serious headphone enthusiasts without a dedicated amp
- There is a noted lack of bass management
- The StreamMagic app lags behind the likes of Bluesound and Yamaha MusicCast in terms of its interface
- Some reviewers found a slight softening of the bottom end
- One review notes some power supply noise in bench tests, but at inaudible levels
Comparisons (according to reviewers)
- Offers wider soundstage, depth, and polish than the Naim Uniti Atom, but the Naim Uniti Atom has a greater sense of musicality and tighter rhythmic fabric
Takeaway: The Cambridge Audio Evo 150 is a versatile and attractive all-in-one system with excellent sound quality and a comprehensive feature set, making it a great choice for those seeking a simple yet high-performing audio solution. It provides a streamlined experience without sacrificing sound fidelity.
Video review
Our take on the brand
What competes at this price?
Our Summary
Product Strengths
- Delivers a vividly detailed and balanced sound, handling complicated mixes with skill
- Able to extract a lot of information from digital audio files with apparent ease
- A volume lock prevents accidental volume adjustments when the device is in a pocket or bag
- Extensive specification including Bluetooth 5.4 with aptX Lossless compatibility and multiple inputs/outputs for versatile connectivity
Product Considerations
- Some reviewers feel the device is not very pocket-friendly due to its size and sharp edges, making it better suited as a transportable—rather than a truly portable—device
- The gain is set too high, making precise volume control difficult, especially with sensitive IEMs
- Using IEMatch adds output impedance, which can negatively affect the tonal balance and dynamics of some IEMs
- The length of the included USB-C cable is short, making it difficult to position the device on a desk
Comparisons (according to reviewers)
- Compared to the iDSD Diablo 1, the Diablo 2 offers slight sonic improvements and better build quality, but at a higher price
- Compared to the iDSD Signature, the iDSD Signature is considered by some to offer a better result for less money, with a more realistic instrument and vocal timbre, larger soundstage, and customizable features like crossfeed and bass boost
- Compared to the FiiO Q7, the iDSD Diablo 2 has a vivid sound, where the FiiO Q7 has a smooth and wide sound
Takeaway: The iDSD Diablo 2 is a powerful and versatile DAC/amp that enhances headphone listening with its detailed sound and extensive features. It is a good choice for users who want a high-quality audio experience on the go or at their desk.
Video review
Our take on the brand
Our Summary
Product Strengths
- Joyful sound signature with detailed output
- Can power a wide range of headphones, due to Ultima technology
- Compact design, stacks perfectly with the Qutest and Huei
- Employs trickle-down Ultima technology to allow delivery of enormous peak current outputs
- Solid build quality using CNC-milled aluminum casework and good heat dissipation
- Connectivity options include headphone and speaker outputs
Product Considerations
- No gain switch for the headphone output
- Default gain level a bit high for sensitive IEMs
- More power limitations with speakers than headphones—best for smaller, efficient speakers or nearfield listening
- Runs hot, requiring good ventilation
- The volume control feels a little wobbly and might be difficult to use in a very precise way, and there is some channel imbalance at very low volumes
Comparisons (according to reviewers)
- Qutest/Anni pairing justifies its price premium thanks to a more composed and insightful presentation that offers notably more low-end authority, dynamic punch and tonal richness
- Cyrus ONE HD is plusher, showing that Anni has strong niche appeal
- The iFi xDSD Gryphon has digital inputs and built-in DAC, while Anni can power speakers
Takeaway: The Chord Electronics Anni is a compact and well-built amplifier that delivers a joyful and detailed sound, making it a great addition to a desktop setup for headphone and nearfield speaker listening. Its use of trickle-down Ultima technology ensures high-quality performance in a small package, and its ability to stack with other Chord devices makes it a good choice for those already invested in the ecosystem.
Video review
Our take on the brand
Our Summary
Product Strengths
- High-quality build and aesthetics, with a metal casing and elegant fascia made to a high standard
- A clear, powerful, and spacious sound, with a presentation that is appealing right from the beginning
- Plenty of power on tap, specified at 70W per channel into 8 ohms and 100W per channel into 4 ohms
- Fantastic connectivity, with three pairs of line-level inputs, an MM phono stage, and outputs for a recorder and subwoofer
- Capable network DAC/streamer with digital controls
Product Considerations
- The dimpled effect flanking the extruded front panel gives the unit a further distinctive look, but the finish feels like plastic upon closer inspection
- The HEOS app isn't bespoke to the 40n, many of the product's set-up options can only be accessed through the unit using the included remote control
- Bluetooth pairing took longer than expected, and there were occasions when the app stopped being able to see or display the music server when switching inputs
- The lettering on the remote control is impossible to read in dim light, and the buttons are too similar in size, resulting in fumbling in the dark
Comparisons (according to reviewers)
- The Marantz Model 40n is a different proposition compared to the Marantz PM7000N, Marantz is keen to reposition itself as a luxury hifi brand and that intent is clear in the 40n's gorgeous build and aesthetics
- Rival systems such as the Cambridge Audio Evo 150 and Naim Uniti Atom do a better job of engrossing listeners in the music, being more insightful, musically engaging, and dynamically exciting by degrees
- Is super-sexy and distinctive styling, a higher level of fit and finish, a much better remote, and access to Sound United's HEOS streaming/multiroom audio platform wanted—or more coaxial and optical digital inputs, Dirac Live room-correction capabilities, more power, a more efficient topology, and access to Lenbrook's BluOS streaming/multiroom audio platform
- At first glance it's hard to distinguish the Model 40n from its slightly costlier Marantz Model 30 sibling
Takeaway: The Marantz Model 40n is a stylish and feature-packed streaming amplifier that offers a musical and inviting performance. With its versatile connectivity options and impressive sound quality, the Model 40n is a great choice for modern, lifestyle hifi systems.
Video review
Our take on the brand
Our Summary
Product Strengths
- Offers a comprehensive set of features including CD player, streamer, Bluetooth, headphone amplifier, phono amplifier, and power amplifier, all in one box
- Sounds very good across digital and analogue inputs, the combination of digital decoding and amplification is exceptionally cohesive
- Has a sturdy, well-built casework that feels every inch of its price tag, and is built to last
- Provides clear, detailed and large, spacious sound with an easy-going presentation, and can be part of an expansive wireless multi-room system
- Incorporates a high-quality ESS Sabre DAC and amplifier based on the Audiolab 6000A design
Product Considerations
- The software interface using DTS Play-Fi is a little slow, and Play-Fi is still not gapless, Play-Fi is not delivering at the same level of user experience as competitor solutions
- Rivals have greater dynamic punch, rhythmic accuracy, and energy
- Some reviewers find that the unit can be a bit sensitive with scratched CDs
- Remote and fascia controls aren't all that responsive
- There is no album art displayed on the screen during streaming
Comparisons (according to reviewers)
- Compared to the Technics SA-C600, the Technics may not be as big-scaled, open or reveal as much detail as the Audiolab Omnia, but it's more adept at conveying enthusiasm, rhythmic precision and dynamic punch
- In direct competition with the Cambridge Audio Evo 75, the Audiolab Omnia ties Audiolab styling touches into something that is not slavishly retro and gives away absolutely nothing in terms of feel, solidarity and design
- Compared to the NAD C700, the Audiolab Omnia has functionality they cannot get anywhere near—indeed functionality that leaves everything else under two grand looking rather limited
Takeaway: The Audiolab Omnia is a versatile and well-built all-in-one system that offers a wide range of features and delivers enjoyable sound, making it a great option for those seeking convenience without sacrificing audio quality. It's especially appealing for those who still value CD playback.
Video review
Our take on the brand
Our Summary
Product Strengths
- BluOS integration offers a slick interface with robust functionality, lossless streaming, and great sound quality
- Compact form factor and lightweight design make it easy to place in various settings
- The 5-inch color display shows album art and track information, contributing to a sleek and sophisticated user experience
- HDMI eARC input allows for easy connection to smart TVs for enhanced audio
- A wide array of connectivity options is available, including digital and analog inputs, pre-outs, and a subwoofer output
Product Considerations
- Lacks a phono stage input for direct connection of turntables without a preamp
- Not a touchscreen
- May sound flat or experience coloration at its peak volume levels
- May lack the macro dynamics of a more powerful amplifier—better suited for efficient speakers and smaller rooms
- Some reviewers found it does not pause playback from the main unit, only mutes it
Takeaway: The NAD C 700 is a versatile streaming amplifier with a compact design and a wide range of features, making it a great option for those seeking a simple way to enjoy high-resolution music. Its intuitive BluOS platform and various connectivity options make it a convenient centerpiece for a modern audio setup
Video review
Our take on the brand
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