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.
All
Merlot
reviews
Manufacturer details
- Up to 384kHz PCM and up to 11.2MHz DSD
- USB, AES, Coax, PLink inputs
- USB compatibility with Windows, Apple OS, Linux
- Headphone output with separate volume control
- Balanced and unbalanced line level outputs
- Differential discrete DAC
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:
- Playback Designs emphasizes a comprehensive digital source approach to digital audio, offering a range of components designed to work seamlessly together for optimal performance and interoperability.
- The company's products, particularly the Merlot DAC, leverage custom, state-of-the-art algorithms implemented via FPGA, allowing for continuous improvement through user-installable firmware updates rather than relying on off-the-shelf solutions.
- Playback Designs' founder Andreas Koch's extensive background in DSD development, including his involvement with the Sonoma workstation and SACD standardization, informs the design and capabilities of their products, particularly in DSD playback.
- They developed the PLink interface which is a proprietary high-quality optical link for transporting the digital signal between Playback Designs components while maintaining galvanic isolation.
Select products
MERLOT DAC
- Positioning: An entry-level digital converter and headphone amplifier aimed at accessible high-fidelity sound.
- Description: Offers support for up to 384kHz PCM and 11.2MHz DSD in a straightforward design ideal for small room setups and tighter budgets. Compared to the more complex Edelweiss and Dream series, it provides solid digital-to-analog conversion with versatile connectivity but without added preamp functionality.
MPD-6
- Positioning: A high-resolution digital-to-analog converter with integrated volume control in the Edelweiss series.
- Description: Features fully differential discrete DAC architecture with low jitter performance. Compared to the entry-level Merlot DAC, it offers refined analog stages and greater technical sophistication while still coming in below the more advanced Dream series products.
8-Series DAC
- Positioning: A focused digital-to-analog converter from the Dream series built for dedicated audiophiles.
- Description: Uses double differential discrete DAC technology with ultra high end analog stages and multiple regulated power supplies. In comparison with the DAC/Preamp, it emphasizes pure conversion without the added control features, positioning it as a streamlined solution within the Dream lineup.
8-Series DACAI
- Positioning: A versatile digital converter and preamplifier in the Dream series designed for expanded functionality.
- Description: Builds on the same double differential DAC approach by adding integrated analog volume control and multiple input options. When compared with the standalone DAC unit, it offers more comprehensive control while remaining less focused on raw power than the flagship amplifier.
8-Series Amplifier (SPA-8)
- Positioning: A flagship stereo power amplifier in the Dream series with dedicated processing for each channel.
- Description: Uses an ultra-low-noise differential linear-phase input along with advanced thermal TRAK technology and discrete Class-A stages to deliver robust, distortion-free power, making it ideal for large rooms and high-budget systems targeting expansive soundstages. Compared to the converter units, its design centers on high-current amplification and low distortion, offering superior performance for dynamic and demanding setups.
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 do not use any standard DAC chip solution from the open market, but rather developed our own proprietary conversion algorithms and programmed them into general FPGA processors that are field upgradeable. In other words, every improvement or change in algorithms can be downloaded from our website and loaded into our products, all by the end user. More details are here.
For one of the most critical components in any DAC we, again, are not using any standard technology, but rather developed a very unique and proprietary algorithm that takes into account the very sensitive properties of our human hearing system and they way it perceives clock jitter. More details here.
When we were part of the DSD creation team at Sony we were tasked with a very challenging project: the definition of a high speed digital communication protocol that would support any PCM and DSD format (i.e. sample rate). This link should be able to transmit any audio data from any source to a DAC. The solution I came up with is based on a high speed fiber optic data link as it is used in super high speed data links where secure data recovery at the receiver is crucial. While the speed of transmitting audio data is well and way below the capability of such fiber optic links I still chose this physical link because of its superb data and clock integrity / stability. In addition the fiber optic media provides a galvanic separation between digital source and core DAC circuitry. This alone already results in an audible improvement. All our products support this link and we call it PLINK. We use it to connect external transports, servers or USB interfaces to our DACs.
What's your approach to customer support?
We see customer support as an opportunity to show to the customer who we are and how much we care. Usually, I answer all inquiries and customer support requests personally, within 24 hours and with as much technical info as possible. While some of our dealers possess good technical know-how and are able to interact with customers on that level directly, other distributors do not provide any technical support. Either way we encourage customers to contact us directly for any help.
I often get feedback from customers that this kind of direct and expert support ultimately convinced them to buy our products. So obviously the way we do it is not standard in our industry.
What are your favorite tracks for showcasing the strength of your products?
There are many excellent recordings that can demonstrate the behavior of our of DACs, but it is mostly a function of the listener's taste in music. For instance, people who do not like classical music do not hear its finesses when played on our equipment etc. For my own personal taste I often use any DSD re-mastered track of Pink Floyd or Roger Waters. This is also because most of these tracks were mastered using my designs and with that they show off specifically the "analog-like" behavior during transients of our DACs and the resulting 3-dimensionality of the sound stage.
What other products pair best with yours?
As a digital "pure-bread" listener I do not use analog sources myself and only our own electronic designs (including amplification) for playback paired with a variety of different loudspeakers from mid-size to professional near-field monitors. The latter are usually more revealing and neutral than most consumer or audiophile speakers, but are only suitable in small studio environments. Over the years I have been working closely with brands such as Hafler (professional speakers), Evolution Acoustics, Stenheim and many speaker manufacturers.
Used
Playback Designs
What if you spend more?
What competes at this price?
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Our Summary
Product Strengths
- Exceptional build quality with a blend of expertly crafted wood and metal, creating a visually striking and durable statement piece
- Dynamic, rich, and effortless sound with excellent detail, texture, and the right amount of tube magic
- Powerful output capable of driving demanding headphones while maintaining clarity and control
- Versatile performance with a variety of headphones (dynamic and planar) due to its output transformer design, often improving sound for warm or neutral headphones
- Value added by its ability to be used as a pre-amplifier in a stereo system
Product Considerations
- Large size and weight (around 15kg) require ample desk space and sturdy furniture
- Generates heat, which could be a concern in warmer environments without adequate ventilation
- Accidental switching of 'On/Off' is possible due to the touch-sensitive bar in the front not being intuitive, so use with care around pets
- Too powerful for some very sensitive IEMs, potentially resulting in overwhelming sound or audible hiss, though this is not the intended design for the amplifier
Comparisons (according to reviewers)
- Vs HIFIMAN Susvara, Envy empowers Susvara's natural presentation while giving it all the dynamics and slam needed
- Vs Cayin HA-300MkII, Envy exhibits more linear mid-to-high frequencies and offers a more transparent sound, while HA-300MkII has a warmer—more engaging midrange
- Vs AURIS Headonia 2A3, Envy performs at the same level, with technically incredibly strong aspects
- Vs Octave V 16, Envy completely demolishes the V 16 when it comes to energy, control, timbre, and resolution
- Vs Ferrum OOR, Envy is more powerful sounding, while also being more detailed with better tonality
Takeaway:
The Felix Audio Envy is a high-end headphone amplifier for audio enthusiasts who want the best quality sound to bring out the magic in their favorite headphones. Its stunning design and versatile performance make it a worthwhile addition to any serious audiophile setup.
Video review
Our take on the brand
Our Summary
Product Strengths
- Possesses the transparency, resolution, detail retrieval, and coherency of an electrostatic rig combined with the musicality of a single-ended triode amplifier
- Tone and timbre are natural, beautiful, rich, and edible
- Exceptional volumetric cube (soundstage) and ability to render depth and width
- Reveals space via endless microdynamic details, nuance, and spatial cues, creating a 'you-are-there' experience
- Svelte and aesthetically clean design, available in black or silver, with a minimalist front facade
Product Considerations
- Sub-bass reach is a limitation; it expertly handles mid and upper bass, and even the initial steps of the deep bass regions remarkably well, though not the deepest bass
Comparisons (according to reviewers)
- Vs Viva Egoista STX: The Trilogy H1 did not offer the incredible clarity or openness of the Viva Egoista STX, but it was closer in quality than expected
Takeaway: The Trilogy H1 Energizer combines electrostatic capabilities with single-ended triode qualities, resulting in a sublime musical experience. It brings forth music with exceptional detail and a delicious tonality, making it a remarkable first electrostatic product from Trilogy.
Video review
Our take on the brand
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Our Summary
Product Strengths
- Improves the performance of headphones, making them sound better
- Images become larger and more distinctly tactile
- Delivers credibility and immersivity, putting headphones into the same ballpark as a good stereo
- Elegant and compact design
- Considered by some to represent the pinnacle of headphone amplification in design and execution
- Placement of RCA's are so close that any high-end RCA cable that has any kind of larger jack assembly will simply not plug in over-and-under into the same-numbered set
Product Considerations
- Some softening of bass impact in comparison to others
- Least apparent power
- Balanced outputs were not included in the original design
Comparisons (according to reviewers)
- Vs HeadAmp GSX Mark II—the E.A.R. has better tone/timbre, imaging, and stereotypical tube benefits to soundstage; HeadAmp has 'blackest' backgrounds, with deepest apparent reach to the bass
- Vs Cavalli Audio Liquid Gold—the E.A.R. has better tone/timbre, imaging, and stereotypical tube benefits to soundstage; Cavalli has widest/tallest sound stage, with best specificity of placement
Takeaway: The EAR HP4 headphone amplifier is a top-tier product with elegant design that elevates the listening experience by improving headphone performance and creating immersive sound. It is an amplifier that inspires listening and immersion in music.
Video review
Our take on the brand
Questions? Ask the brand's dealers.
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