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.
What are hifi reviews useful for? (1) Identifying products you should demo in person at a dealer. (2) Learning which products reviewers unanimously praise as the best they've heard (this means they probably are legitimately great). (3) Identifying a product's attributes that satisfy your idiosyncratic needs and tastes. Beyond that, we often discount what reviewers say because they heap praise on most products—and are often apprehensive about publishing strong criticism or comparisons between products. Further, they seldom have more than a few products on-hand, often relying on their memories to compare past products. Always listen for yourself.
All
Ianus Aperio
reviews
Video Review
Manufacturer details
Features
Specifications
- Technology: Single stage, Single Ended, TriodeFet technology
- Gain stages: Single stage amplifier, from input to output posts
- Power output: 35W @8ohms
- Tube compliment: 2 x E280F / E282F / E810F / E180F
- Volume control: 26 step TVC volume control technology
- Inputs: 4 X RCA, 1 X XLR (pin 2 used), 1 x Direct (Ac link)
- Power bandwidth: full power at 5Hz -3db
- Maximum gain: 21db (tube dependent)
- Noise floor: -90db ref 1V RMS
- Dimensions: Main unit: 420mm W x 310mm D X 420mm H 80kg
- PSU unit: 420mm W x 310mm D x 140mm H 35kg
Description
We proudly present Ianus Aperio - the third amplifier in the new Ianus Series. Debuting at Munich High End May 2022, the new Ianus Aperio Stereo power amplifier uses TriodeFet technology and has features that make it unique in the already innovative Ianus range.
The Ianus Aperio integrated amplifier as his amplifier siblings in the Ianus range, uses TriodeFet technology ,however it has features that make it unique in the already innovative series. In contrary to the bigger Geminae model, the Aperio is using the TriodeFet active element in a very different topology, as this is a Single Ended design It goes a step beyond to be the only integrated amplifier which is Single Stage as well. One stage from input to output posts
Release Timeline
Manufacturer Site
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:
- They employ a "zero feedback power gain stage" in their preamplifiers, utilizing a transformer-coupled super-triode design, which is unusual for tube preamps.
- Aries Cerat's Inverted Triode Technology departs from the design of traditional vacuum tubes by using an electron stream accelerated towards a wire-grid-like anode, offering performance benefits.
- Aries Cerat uses Multi-tap input transformers as the attenuation method for volume control, in addition to Nixie-Tube input and volume indicators behind a thick glass front panel.
- They incorporate user-adjustable bias, allowing listeners to fine-tune the sound to match their system and personal preferences.
Select products
Select product comparisons
Prestige Series
- Positioning: The entry-level lineup offering high-quality audio performance with accessible designs.
- Description: Delivers impressive sound quality through carefully engineered components. While it provides a solid foundation, it lacks the advanced technologies found in the higher-tier Reference and Signature Series, resulting in comparatively less refined audio reproduction.
Reference Series
- Positioning: Mid-tier products that introduce enhanced features and performance over the Prestige Series.
- Description: Incorporates improved circuit designs and higher-grade materials, offering a more detailed and dynamic listening experience. However, it doesn't include the proprietary Inverted Triode technology present in the Signature Series, which limits its ability to deliver the same level of sonic purity and realism.
Signature Series
- Positioning: High-end products featuring Aries Cerat's proprietary technologies for superior audio fidelity.
- Description: Stands out with the implementation of the unique Inverted Triode technology, providing exceptional linearity and low distortion. This results in a more natural and immersive sound compared to the Reference Series.
Limited Edition Series
- Positioning: The flagship lineup representing the highest level of craftsmanship and audio performance.
- Description: Features top-of-the-line components and exclusive designs, such as the dual-chassis configuration for improved isolation and power supply integrity. This meticulous engineering surpasses the capabilities of the Signature Series, delivering extraordinary soundstage and detail retrieval.
See All Products
Avg. Product Price
$40,001-$75,000
Used For Sale
4
Available (Scroll Down)
Brand Popularity
315
of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
29
Founding Year
2010
Our take on the brand
Aries Cerat is a hifi brand known for its use of oversized components and TriodeFet technology, which combines tube and solid-state designs to create a distinctive sound signature. Their products, including the Kassandra DAC and Symphonia horn speakers, are built with massive power handling capabilities and carefully selected drivers to deliver a muscular, dynamic sound that rivals top analogue systems.
Look inside the brand
Brand Page
Our interview with the brand
What are two key technological innovations or strong opinions that differ you from other brands?
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?
From our interview with
.
Brand Page
Used
Aries Cerat
All of the Brand's Used Products
What if you spend more?
Audio Phonique
PSE1605
83958
83958
/
1
Reviews
Audio Phonique PSE1605 mono amplifiers will take you to the world of limitless space full of dynamic vibrant sound sources and associated extremely high emotional content. If being as close to live music as possible is what you’re after, then our luxurious and unique PSE1605 mono amplifiers will get you there.
Audiophonique is a Polish hifi brand that hand-makes all its products using 316L stainless steel enclosures and medical and military-grade components. Their DAC DHT stands out for its rare use of directly heated triodes and DSD conversion, while their cables feature a proprietary Extended Air Geometry with monocrystalline silver and copper conductors.
Expand Details
.svg)
Product Strengths
- High momentum, dynamic span, effortlessness, and immediacy.
- Open and highly complex spatial frames with loads of air around sound sources, filled with colors securing a zesty, vibrant, moisturized, and articulated view.
- A unique blend of virtues—posh, elegant, euphonic, organic, fresh, and engaging—while showing detail and clarity.
Product Considerations
- Very hot and needs enough space for heat dissipation.
- The shiny chassis attracts dust and fingerprints and requires regular cleaning.
- Elongated narrow enclosures require deeper than usual shelves or floor placement.
- The review unit had an inactive balanced socket that paying customers won't see.
Comparisons (according to reviewers)
- Vs Trilogy 995R: Bass is shallower and not as beefy, but more elastic and complements the higher ranges instead of dominating.
- Vs Aavik I-880: PSE1605 trades some quickness for extra tone.
- Vs Enleum AMP-23R, Nagra Classic-INT, and AGD Production Vivace monos: PSE1605 trades some of its quickness and illumination for more tone and grounded perspective, but still scores very high on detail and clarity.
Takeaway: The Audio Phonique PSE1605 mono amps offer a unique listening experience with exceptional sound and a vibrant soundstage. If one appreciates a combination of elegance, detail, and engaging sound, the PSE1605 could be a great fit.
Video review
Our take on the brand
Audiophonique is a Polish hifi brand that hand-makes all its products using 316L stainless steel enclosures and medical and military-grade components. Their DAC DHT stands out for its rare use of directly heated triodes and DSD conversion, while their cables feature a proprietary Extended Air Geometry with monocrystalline silver and copper conductors.
Product Page
Product Page
.png){kind=small}
Gryphon
Apex
99000
99000
/
7
Reviews
Since its introduction in 2022, Apex has been hailed as the finest power amplifier ever created. Critics and connoisseurs have universally praised its combination of shattering power and sublime delicacy; its ability to drive any loudspeaker balanced with unimpeachable tonal neutrality. It has always been Gryphon’s mission to achieve the highest possible audio performance in terms of sheer musicality, transparency and realism. With Apex Mono and Apex Stereo, Gryphon Audio Designs has elevated pure Class A power amplification a titanic leap above what was previously considered possible. Gryphon Apex takes us several significant steps closer in the quest for the most natural and convincing musical illusion.
Gryphon is one of the most respected high-end amplifier brands in the world. Its bass grip is phenomenal, thanks to an unusually high level of capacitance, which keeps everything tight and controlled, even with demanding speakers. Gryphon is also known for its bold, brutalist design—a look that a lot of people love. You’ll find their gear all over Europe and Asia, and the Diablo 333 is often considered an ‘endgame’ amp by those chasing the very best sound and aesthetics.
Expand Details
Product Strengths
- Delivers lots of current due to a new 2000VA toroidal transformer
- The Apex Stereo's ease of presentation was immediately obvious—it fully engaged the reviewer
- The amp exuded supreme self-confidence
- The amp simultaneously speeds things up and slows things down
- Superior speaker grip, improving organization, timing, and musical flow
Product Considerations
- Initial start-up can be alarming due to flashing error lights
- The size and weight (445 lbs) can make installation challenging
- It's gigantic and heavy, requiring special equipment and tools to handle its production
Comparisons (according to reviewers)
- Vs Boulder 2060: The Apex revealed more tonally saturated sounds
- Vs Boulder 2060: Apex cast a larger soundstage, and within those huge spaces, images were generally larger and more three-dimensional
- Vs Boulder 2060: Apex exposed more detail in the music
Takeaway: The Gryphon Apex Stereo is a powerful amplifier that brings music to life with a balanced and full sound at any volume. Its ability to reveal the resonant nature of instruments transforms listening sessions into immersive experiences.
Video review
Our take on the brand
Gryphon is one of the most respected high-end amplifier brands in the world. Its bass grip is phenomenal, thanks to an unusually high level of capacitance, which keeps everything tight and controlled, even with demanding speakers. Gryphon is also known for its bold, brutalist design—a look that a lot of people love. You’ll find their gear all over Europe and Asia, and the Diablo 333 is often considered an ‘endgame’ amp by those chasing the very best sound and aesthetics.
Product Page
Product Page
Dan D'Agostino
Momentum M400 MxV
79950
79950
/
4
Reviews
The company's inaugural creation, the Momentum Mono Amplifier, served as the foundation for its product line. The Momentum M400 MxV Mono Amplifier, the latest iteration, enhances the iconic design to new heights. Incorporating techniques and topologies from the Relentless Mono Amplifier, the Momentum M400 MxV models represent the pinnacle of Momentum circuitry evolution. The new model name, MxV, signifies Mass times Velocity—the fundamental equation for Momentum, a recognition that resonates particularly with individuals having a physics background. Explore the cutting-edge Momentum M400 MxV for an unparalleled audio experience.
Dan D'Agostino is an ultra-premium hifi brand distinguished by its unique copper heat sinks with holes and distinctive circular green-lit VU meters that give their amplifiers a steampunk aesthetic. Their amplifiers feature proprietary "Super Rail" technology that maintains high voltage for front-end transistors, while their three-chassis Relentless Preamplifier uses 30-pin interlocking connectors to eliminate wiring anomalies.
Expand Details
Our summary
Product Strengths
- Exquisite aesthetics with a sleek design and a power meter that glows green
- Delivers a smooth and satisfying sound
- The sound is described as 'louder' and more powerful
- Said to be able to drive any speaker to its maximum output
- Upgrades are retrofittable to earlier Momentum models
- Balanced input only
Product Considerations
- Runs warm
- The scale on the power meter is essentially uncalibrated
- Requires a return to the factory for MxV upgrades on earlier Momentum Models
Comparisons (according to reviewers)
- The Momentum M400 MxV incorporates technology from the Relentless line and gets very close to the Relentless sound regarding space and depth
- The Momentum M400 MxV is smaller and lighter than the Karan Acoustics POWERa mono
- The Momentum M400 MxV is smaller and lighter than the D'Agostino Progression M550 Mono amplifier
Takeaway: The Momentum M400 MxV monoblock is a beautifully designed and powerful amplifier that delivers a smooth and satisfying listening experience. It incorporates technology from the flagship Relentless model, making it a top-tier choice for audiophiles.
Video review
Our take on the brand
Dan D'Agostino is an ultra-premium hifi brand distinguished by its unique copper heat sinks with holes and distinctive circular green-lit VU meters that give their amplifiers a steampunk aesthetic. Their amplifiers feature proprietary "Super Rail" technology that maintains high voltage for front-end transistors, while their three-chassis Relentless Preamplifier uses 30-pin interlocking connectors to eliminate wiring anomalies.
Product Page
Product Page
Audio Research
Reference 330M
90000
90000
/
2
Reviews
Audio Research is a hifi brand that has stayed committed to tube technology while many competitors moved to solid-state designs. The brand is known for its use of KT150 power beam tetrodes and hybrid power supply designs that blend tube amplification with solid-state regulation.
Expand Details
Product Strengths
- Fully balanced design, handcrafted in the USA
- Employs a sextet of KT170 valves, ECC83, and 6H30, with hand-selected and matched valves
- Features Audio Research's 'Auto-Bias' circuitry and an internal hour meter for monitoring valve usage
- Aesthetically elegant design with unique 'Ghost Meters' which are LED-illuminated and can be dimmed or switched off
- Capable of delivering high power at low frequencies, controlling and driving speakers like a big solid-state amplifier
Product Considerations
- High price point
- Requires a 20A IEC cable (supplied)
- The bass control and sheer bass output of the Gryphon Audio Antileon EVO (solid state) could not quite be matched by the Reference 330M
- The unit use a variable speed fan, although it was essentially silent during testing, this may still present a point of concern for some users
Comparisons (according to reviewers)
- Vs Gryphon Audio Antileon EVO: The Gryphon Audio Antileon EVO (solid state) has slightly better bass control and output
Takeaway: The Audio Research Reference 330M is an intelligently engineered and beautifully styled amplifier that embodies the meaning of 'Reference' in sound quality. Its powerful valve design delivers excellent performance and is sure to be a conversation piece in any high-end audio setup.
Video review
Our take on the brand
Audio Research is a hifi brand that has stayed committed to tube technology while many competitors moved to solid-state designs. The brand is known for its use of KT150 power beam tetrodes and hybrid power supply designs that blend tube amplification with solid-state regulation.
Product Page
Product Page
What competes at this price?
Aavik
I-880
70000
/
Released
2023
The primary development goal of this series was to create a powerful non-switching pure class A amplifier with the lowest possible output impedance that would contribute to a better signal and less noise, thus improving speaker performance, resulting in a much more organic sound and more musicality.
Aavik Acoustics crafts amplifiers using natural composite materials inspired by musical instruments, with their cabinets designed to enhance audio potential. Their products feature unique noise-cancelling technologies including Tesla coils and dither circuitry, while offering distinctive features like their U-300's input-specific gain adjustment system and the U-380's signature "aged-in-wood" bass sound.
Expand Details
Our Summary
Product Strengths
- Visually stylish, luxurious, well-built, and enjoyable to look at
- Offers extensive functionality including preamp gain adjustment, channel balance, mute, and display brightness settings
- Combines qualities of both tube and transistor designs, having transparency and magical realism with easy power
- Produces a clean, succinct, holographic, and exciting sound, with great dynamic capabilities
- Exceptionally well-balanced frequency response, fitting between the warmth and energetic explicitness of other amps
Product Considerations
- Massive and heavy, making it not easy to move around
- Single ended inputs only with no balanced inputs
- The vast disparity between the damping factors—synergy can vary with speakers
Comparisons (according to reviewers)
- Aavik I-880 was leaner, more illuminated, outlined and energized, spatially grander, less intimate and occupied via shorter key sound sources, compared to Trilogy 915R preamp and twin 995R mono amps
- The I-880 was internally juicy, admirably outlined, enjoyably angry, instantaneous, and powerful in the lower end range, where the twin 995Rs were boomier, fuzzier, slower and sensibly shallower on the very bottom
Takeaway: The Aavik I-880 is a high-performing, visually stunning integrated amplifier that brings music to life with both elegance and power. This amplifier is designed to be a centerpiece, both sonically and aesthetically, in any high-end audio system.
Video review
Our take on the brand
Aavik Acoustics crafts amplifiers using natural composite materials inspired by musical instruments, with their cabinets designed to enhance audio potential. Their products feature unique noise-cancelling technologies including Tesla coils and dither circuitry, while offering distinctive features like their U-300's input-specific gain adjustment system and the U-380's signature "aged-in-wood" bass sound.
Product Page
Product Page
Dan D'Agostino
Momentum MxV
65000
/
Released
2023
Combining the front end technology from the Momentum HD Preamplifier and the power section of the Momentum MxV amplifier, the Momentum MxV Integrated Amplifier delivers Momentum Series performance in a compact framework. The elegant design only hints at the advanced circuitry within its Aluminum and Copper housing.
Dan D'Agostino is an ultra-premium hifi brand distinguished by its unique copper heat sinks with holes and distinctive circular green-lit VU meters that give their amplifiers a steampunk aesthetic. Their amplifiers feature proprietary "Super Rail" technology that maintains high voltage for front-end transistors, while their three-chassis Relentless Preamplifier uses 30-pin interlocking connectors to eliminate wiring anomalies.
Expand Details
Our Summary
Product Strengths
- Strong physical presence and handsome aesthetics, featuring lacquered copper heatsinks, venturi tunnels, and Breguet-style dials.
- MxV upgrades bring significant improvements in core music reproduction areas such as sound stage, detail, and dynamics.
- The Momentum M400MxV sounds 'louder' and more powerful even when set to the same levels as its predecessors.
- The Momentum MxV amplifiers have the ability to bring out the best in loudspeakers
Product Considerations
- The D'Agostino Momentum MxV monoblock is a heavy piece of equipment, weighing 43kg apiece without optional stands.
- The Momentum M400MxV may run warm
- DIP switches for input loading are inside the unit, which requires removing the top cover when switching between cartridges
Comparisons (according to reviewers)
- The Momentum MxV amplifiers bring much of what inspired the larger Relentless Epic 800 and Relentless Epic 1600 to a smaller form factor and price point
- The early Momentum Stereo delivered around half the power of the monoblocks, compared to the Momentum Stereo.
Takeaway: The D'Agostino Momentum MxV amplifiers bring high-end performance in a visually striking package, capable of significantly enhancing the listening experience through improved detail and dynamics. The upgrade path for existing owners also makes it a worthwhile long-term investment.
Video review
Our take on the brand
Dan D'Agostino is an ultra-premium hifi brand distinguished by its unique copper heat sinks with holes and distinctive circular green-lit VU meters that give their amplifiers a steampunk aesthetic. Their amplifiers feature proprietary "Super Rail" technology that maintains high voltage for front-end transistors, while their three-chassis Relentless Preamplifier uses 30-pin interlocking connectors to eliminate wiring anomalies.
Product Page
Product Page
Pathos
InPoL Legacy
55000
/
Released
2022
Pathos introduces the new integrated amplifier with patented InPoL technology: InPoL Legacy. As Heritage was meant to be a tribute to the work of Gianni Borinato, co-founder of Pathos, a heartfelt acknowledgment of his innovations and contributions to the world of audiophiles, similarly InPoL Legacy represents the ideal legacy of Gaetano Zanini, co-founder, and owner of Pathos.
Pathos Acoustics is known for its InPol technology, which combines tube pre-amplification with solid-state amplification to create a distinctive warm yet powerful sound. The brand stands out in the hifi market for its striking visual designs that blend wood and aluminum, while using both tubes and transistors in their amplifiers to achieve their signature sound.
Expand Details
Our Summary
Product Strengths
- Employs Pathos InPoL Technology/Dual InPoL Circuit, aiming for Pure Class A amplification and a warm, natural sound
- Delivers substantial power: 100 watts per channel into 8 ohms, and 170 watts per channel into 4 ohms
- Uses high-quality components and a power supply based on 1,800 VA toroidal transformers per channel
- Features a tube preamp (using Tun-Sol ECC803 and 6H30 Sovtek tubes) and MOSFETs in the power amplifier
Product Considerations
- The amplifier is large (540 x 800 x 300 mm) and very heavy (100 kg), possibly making it difficult to integrate into standard hifi setups
Takeaway: The InPoL is engineered to deliver a natural sound and substantial power, using high-quality components and a sophisticated design. This could be a compelling option for individuals seeking a high-end amplifier.
Video review
Our take on the brand
Pathos Acoustics is known for its InPol technology, which combines tube pre-amplification with solid-state amplification to create a distinctive warm yet powerful sound. The brand stands out in the hifi market for its striking visual designs that blend wood and aluminum, while using both tubes and transistors in their amplifiers to achieve their signature sound.
Product Page
Product Page
.png){kind=small}
True Life Audio
TSI-300
53700
/
Released
2024
TSI-300 Integrated Amplifier, is a hybrid design, designed to capture the TLA sound and capabilities in a single chassis. 2 Tube preamplifiers driving 2 Solid state power amplifiers. All in one chassis.
True Life Audio (TLA) employs a unique hybrid design in their amplifiers, combining tube and solid-state technologies with custom-designed, hand-wound transformers made in-house. Their Supreme Series features a dual-mono design with separate power supplies for each channel, and they use ultra-wide bandwidth interstage transformers while rejecting signal-path capacitors to achieve a more natural sound.
Expand Details
Our Summary
Product Strengths
- Refined and powerful sound that can compete with the best
- Big and authoritative sound, dynamics, and deep bass
- Natural and lifelike midrange, and a treble that's so extended that it allows you to find the magic in hi-rez digital
- Enormous soundstage in all directions
- Able to play loud without strain, distortion, or compression
- Offers a refined and powerful sound that can compete with the best
- Big and authoritative sound, dynamics, and deep bass
- Able to play loud without strain, distortion, or compression
Product Considerations
- The power receptacle is 20 amps, and a suitable power cord was not included
- Large and heavy amplifier weighing 55 kilos without packing material, so placement needs consideration
Comparisons (according to reviewers)
- Vs Burmester 909 and 088, the True Life Audio TSI-300 did not make singers ten feet tall, like some big systems do, but there was a stronger sense of the sound going far beyond the room boundaries, while the Burmester gear had an unexpected talent for keeping the images and the soundstage confined to a realistic, lifelike size
Takeaway: The True Life Audio TSI-300 seems to do everything it needs to do without compromise, delivering drama and raw emotion. It will appeal to those who love a big and authoritative sound, dynamics, and deep deep bass without sacrificing musicality.
Video review
Our take on the brand
True Life Audio (TLA) employs a unique hybrid design in their amplifiers, combining tube and solid-state technologies with custom-designed, hand-wound transformers made in-house. Their Supreme Series features a dual-mono design with separate power supplies for each channel, and they use ultra-wide bandwidth interstage transformers while rejecting signal-path capacitors to achieve a more natural sound.
Product Page
Product Page
Vinnie Rossi
Brama Integrated
47995
/
Released
2021
With 400 Watts RMS of output power per channel into 4 ohms and unwavering stability into 2 ohms, the Brama Integrated Amplifier's high-current, Class AB lateral MOSFET output stage drives even the most demanding loudspeakers with conviction. What sets our approach apart is how we achieve this power using only 2 matched output devices per rail, effortlessly revealing the subtlest nuances in your music.
Vinnie Rossi is a USA-based hifi brand that pioneers hybrid tube and solid-state designs, with their signature LIO system using ultracapacitor power banks instead of traditional AC power to eliminate noise. Their fully modular LIO system lets users customize their setup with various components like phono stages and DACs, while offering a 10-year warranty that reflects their build quality.
Expand Details
Our Summary
Product Strengths
- The Brama's graceful sound, looks, fit, finish, and feel make it a standout as a complete package, delivering the sonic goods.
- The Brama offers a finely resolved ease to the sound that does not trade resolution for warmth, but rather offers grace and delicacy.
- It is a completely clean, clear silent runner, with absolutely no discernible self-generated interference.
- The Brama's greatest appeal lies in presenting music as a door already open, without obstruction caused by perceived sonic shortcomings.
- It is a master at fluidity, richness without ever sounding overripe, and dynamic impact that feels right as opposed to overcooked.
Product Considerations
- The control knobs get warm to the touch, but that is just aluminum doing its heat dissipation thing.
Comparisons (according to reviewers)
- Using the Brama's pre-out as pre, the Riviera monoblocks turned the rich cornucopia of sounds into a more believably dense and dimensional garden as compared to the Brama as integrated amp.
Takeaway: The Vinnie Rossi Brama Integrated Amplifier offers graceful sound and attractive design, making it a compelling choice. Its effortless purity and full-range reach invite the listener into the music.
Video review
Our take on the brand
Vinnie Rossi is a USA-based hifi brand that pioneers hybrid tube and solid-state designs, with their signature LIO system using ultracapacitor power banks instead of traditional AC power to eliminate noise. Their fully modular LIO system lets users customize their setup with various components like phono stages and DACs, while offering a 10-year warranty that reflects their build quality.
Product Page
Product Page
Questions? Ask the brand's dealers.
All Dealers
How to buy
Amplifiers
Search all hifi products
Explore our database of 10,000+ new and 25,000+ used hifi products.
