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.
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CT50-N
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Manufacturer details
- Power: 50W RMS
- Distortion: 0.03% at 1W, 0.2% at 45W 1kHz
- Frequency Response: 5Hz - 35kHz at 1W
- Line Sensitivity: 0.4Vrms at Pmax
- Speaker Impedance: 4 to 8 Ohms
- Power Supply: 20W without modulation / 200W at Pmax
- Dimensions: 370 x 280 x 50 mm
- Weight: 7 kg
- Digital Inputs: 2x USB host for hard drive/USB stick/dongle, 1x USB device for PC/MAC audio connection (24bit/192kHz), 1x network input, 1x coaxial SPDIF, 1x optical SPDIF
- Analog Inputs: 2x RCA line inputs
- Remote Control: Infrared
- Price: 4200 €
The CT50N concentrates all the technology developed by Solen for its amplifiers and its DAC. First of all, the BLS (Bias Lock System) registered by Solen, performs the instantaneous measurement and the control of the quiescent current of the active elements. Unlike most amplifiers which have a simple temperature compensation, the locking device developed by Solen provides a very high stability of the operating point and the symmetrization of the push-pull. Consequently, the optimum distortion point is guaranteed at any listening level and in the operating temperature range. Moreover, due to the control, this amplifier maintains a very controlled bias and very low heating on average.
This integrated amplifier-router therefore includes a "dual-mono" amplifier on a parallel push-pull architecture (Circlotron) with trans...
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:
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CV20-N Tube Amplifier-DAC
- Positioning: A compact entry-level tube amplifier-DAC designed for modest rooms and budget-minded users.
- Description: Integrates a tube amplifier circuit with built-in DAC and digital inputs in a lightweight design, offering an accessible introduction to tube warmth. In contrast to the higher-powered models, it delivers lower output and fewer connectivity features, making it ideal for small spaces and those prioritizing affordability over advanced functionality.
CT50-N Amplifier-DAC
- Positioning: A digitally oriented transistor amplifier-DAC aimed at users needing modern connectivity and versatile input options.
- Description: Features an integrated DAC with an embedded server and Bias Lock System for enhanced current stability and a detailed, balanced sound. Compared to the tube-based CV40 series and the entry-level CV20-N, it offers a broader range of digital functionality and connectivity.
CV40 Tube Amplifier
- Positioning: A classic high-quality tube amplifier that uses the traditional Circlotron design for precise dynamics and spatial imaging.
- Description: Uses a full tube push-pull architecture with EL34 tubes to achieve natural warmth and refined imaging that capture the essence of analog sound. When compared to the entry-level CV20-N and the refined CV40-EL84 variant, it stands as a proven, high-end solution.
CV40-EL84 Tube Amplifier
- Positioning: A premium refinement of the classic tube amplifier that optimizes tube selection and power regulation for enhanced tonal balance.
- Description: Uses a similar Circlotron layout as the CV40 but replaces EL34 tubes with EL84 tubes and includes regulated high-voltage supplies and automatic polarization, yielding improved tonal purity and ease of maintenance.
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Used
Solen
What if you spend more?
For those who demand the best, but want to keep things simple. The Z40+ Integrated amplifier delivers the magic, realism, and 3D soundstage of our patented ZOTL technology, all in one (gorgeous) package. A single-component solution, the Z40+ Integrated amplifier incorporates the acclaimed ZOTL40+ Reference power amplifier, a Berning-designed preamplifier, and LTA’s digital control system–beautifully packaged in a Fern & Roby-designed case. The Z40i+ generates up to 51 watts per channel. This means the Z40i+ can easily drive speakers with sensitivity ratings at or above 85db for critical listening. For smaller rooms or non-critical listening, it can drive speakers rated down to 80db. In any configuration, listeners enjoy startling realism, plentiful bass, low noise, plus gorgeous mids and highs.
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Product Strengths
- Balanced and musically persuasive presentation, making it convincing across various music genres
- Superb control coupled with a timbrally rich sound and expansive sound image—wonderfully nuanced and inviting
- Transparent, detail-oriented sound that doesn't sacrifice the body and soul of the music
- The design uses David Berning's ZOTL technology, aiming to deliver tube richness with solid-state resolve and speed
Product Considerations
- May require higher sensitivity speakers to perform optimally, especially in larger rooms
- The lack of dedicated subwoofer outputs might be a drawback for some users
- Its transparent nature means that poorly mastered recordings will be revealed as such
Comparisons (according to reviewers)
- The Z40+ leans to a richer and more fluid sound, whereas the SoulNote A-2 is more concerned with resolution and clarity
- Compared to Pass Labs XP30 preamp and a First Watt F7 power amp, the Pass Labs sounded warmer, fleshier, and bigger, however, the Linear Tube Audio amp had more life to it
- Compared to Pass Labs XP30 preamp and an XA25 Pass Labs amplifier, the Linear Tube Audio has more density to the sound and is more solid sounding than the XA25 with the XP30
Takeaway: The Z40+ offers a unique combination of tube and solid-state qualities, providing a detailed yet musical listening experience. Its design and high-quality components aim to deliver a transparent and honest sound, suitable for a wide range of music and audiophiles who appreciate sonic purity
Video review
Our take on the brand
The amplifier is the interface between your signal sources and the speaker system, whatever is lost at this position is lost forever and conversely, whatever is introduced is also amplified. Amplifiers are also products for everyday use. Some successfully deviate from the conventional, they remind us of the strive for perfection – a human virtue we like to recognize and being close to.
There is a distinctive mood of luxurious puritanism to be found in the appearance of most Copland amplifiers. However, with the CTA407 tube amplifier we have compromised simplicity, introducing a fair deal of electronics supporting the audio stages of the amplifier. The forty LED diodes on the front panel (10 for each tube) are the visual part of the CTA407 tube bias and diagnostic system. And yes, the LEDs can be turned off if you don't want to read the status of your power tubes on the fly.
The CTA407 will automatically adjust for any tube in the 6550/KT88/KT120/KT150 family. The CTA407 servo system is not only a lossless automatization of the bias adjustment – it is an integrated part of the CTA407 internal high pass filtering, closely matched to the transfer function of the amplifying circuitry and a vast improvement to the overall fidelity of the amplifier.
The CTA407 employs five line-level inputs including a tape monitor loop and a built-in RIAA phono circuit accommodating moving magnet, as well as high output moving coil cartridges. It is a development of the CTA405 amplifier, an object of desire for audiophiles worldwide since its launch more than a decade ago.
The push pull output stages consist of a pair of matched power tubes in fixed ultra linear configuration, providing the low distortion of triodes and the power of tetrode valves. A pair of 6550 or KT-family tubes in push-pull configuration can deliver more than 100W of audio power. Moderating the power output, the CTA407 delivers 2x50W in high biased class A/AB mode. In practice, this means that the amplifier can deliver most its power in class A state.
Due to the quality of the output transformers, superb linearity is achieved before feedback is employed, reducing the requirements for internal lag compensation networks, and ensuring high stability after the 18dB negative feedback loop is closed. The CTA407 can provide an extraordinarily accurate reproduction of music without tendency towards listening fatigue, featuring strong dynamics and a wide flexibility in the choice of speakers.
The vanishing low perceived noise from the amplifier itself is a bliss, especially for owners of high efficiency speaker systems. The CTA407 employs motor driven volume control and can be fully controlled by the Copland RC102A remote control unit.
Our summary
Product Strengths
- The CTA407 balances accuracy and musicality, creating an amplifier that is greater than the sum of its parts.
- Utterly silent at idle, with neither noise from the amp itself nor through the speakers.
- It delivers the recording with surprising punch and attack within its power output limits.
- The amplifier is well-built, with every control feeling precise in use, exuding functionality.
- It offers a balanced, expressive, and composed performance.
Product Considerations
- The CTA407 is a big amplifier and requires plenty of room in any system.
- The buttons on the remote are prone to sticking.
- It has no headphone output.
- The moving magnet phono stage might not suit all users, as many prefer MM/MC onboard phono sections or separate phono stages.
Comparisons (according to reviewers)
- Vs Copland CTA405: The CTA407 traces back to the CTA405, specifically the CTA405 and not the CTA405a.
- Vs Copland CTA408: The CTA407 replaces both the 405a and the CTA408.
- Vs Yamaha A-S3200: The Copland amplifier doesn't have quite the same control over bass frequencies when playing loudly.
- Vs Audio Research I/50: The Copland amp seems more dynamic and plays with more authority in the bass range.
- Vs Rotel Michi X5: The Copland amplifier doesn't have the same endless power.
Takeaway: The Copland CTA407 delivers a sophisticated and controlled sound, with a rich and nuanced tonal character. It is a well-engineered tube amplifier that offers a balance of power and refinement for an engaging listening experience.
Video review
Our take on the brand
an integrated tube amplifier in class A with an output power of 2 x 40 W KT88 high-power tubes with autobias with a cathode feedback an option to immediately switch between triode and ultra-linear mode PCB’s utilize our premium CMT ™ technology perfect separation of channels by using a relay attenuator / standalone blocks for each channel/gain control by 1 dB and maximum attenuation of 63 dB the independently powered control part filter capacitors with high capacitance deliver energy to accurate and tight basses only use high-quality polypropylene capacitors have been used in the signal path absolute selection and tubes matching with above-average parameters an option of synchronous control enables the use of two amplifiers in a monoblock mode without the need of using an extra preamplifier and that is a Master/Slave mode with an output power of 80 W per channel
Product Strengths
- Impressive build quality, with robust and chunky chassis, thick top plate and high-quality connectors
- Both Ultralinear and Triode modes are offered, providing flexibility in sound and power output—40W and 20W respectively
- It can be used in a monoblock configuration without needing an additional preamplifier
- Phenomenal sound quality, with excellent bass handling, fantastic midrange, and fast, detailed yet silky smooth treble
- Transparency allows users to hear differences when making system changes
Product Considerations
- The remote control's material might feel a little sticky
- It lacks a home theater bypass analog input
- The AI 1.10 requires at least 20 cm of space at the top and back for proper ventilation
- All tubes undergo a critical selection process to ensure long-life and stable operation, so when they need replacing, customers may need to contact Canor directly to maintain optimal sound
Comparisons (according to reviewers)
- The Canor sounded better than the Dynaco ST-70, but it was clear that it was struggling at the frequency extremes
- The AI 1.10 sounds even more tubey and bold by all means—in Triode Class-A mode—at the expense of the extra illumination and even more ambient retrieval at mid & higher freq. spectrum
- The Canor sounded just a bit smoother and slightly more open and transparent in higher extremes than the Jadis Orchestra Reference
Takeaway: The Canor AI 1.10 is a versatile tube amplifier with impressive sound and build quality. With features like auto-bias and switchable modes, it could be a great choice for audiophiles seeking a flexible and enjoyable listening experience.
Video review
Our take on the brand
an integrated tube amplifier operating in class A, providing an output power of 2 x 40 W KT88 high-power tubes with autobias with a cathode feedback an option to switch between triode and ultra-linear mode instantly PCB’s utilize our premium CMT ™ technology perfect channel separation using a relay attenuator that features individual blocks for each channel. The gain control is in increments of 1 dB and attenuates up to 63 dB the independently powered control part capacitors with high capacitance in the filter provide energy for precise and well-defined bass the signal path exclusively contains high-quality polypropylene capacitors precise selection and pairing of the tubes meeting above-average parameters the synchronous control option allows the use of two amplifiers in a monoblock mode without the need for an extra preamplifier. This Master/Slave mode has an output power of 80 W per channel
Product Strengths
- Excellent build quality with imposing casework and high-quality finish
- Offers flexibility with switchable ultralinear and triode modes for different sound characteristics
- Features auto-bias with cathode feedback for safe and easy tube operation
- Precise gain control with a relay volume control and individual blocks for each channel, attenuating the signal in steps of one decibel
- Transparent yet warm organic sound profile suitable for various music genres
Product Considerations
- Generates significant heat during operation, requiring ample space for air circulation
- High power consumption of 150 watts in idle
- Switching between triode and UL modes can only be done on the amplifier itself, not via the remote
Comparisons (according to reviewers)
- The Virtus I2 is a step up from the Canor AI 1.10
- The Virtus I2 is more affordable than the Canor Virtus M1
Takeaway: The Canor Virtus I2 is a well-engineered tube amplifier with a focus on in-house manufacturing, offering a transparent and engaging sound. Its flexibility and ease of use make it a worthwhile consideration for audiophiles seeking a high-quality tube listening experience.
Video review
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What competes at this price?
Our Summary
Product Strengths
- Combines the tonal qualities of tubes with the power of solid-state amplification, combining the great aspects of both technologies
- Delivers a clean, detailed, dynamic, and musically insightful sound
- Well-built with high-quality components, including point-to-point wiring in the preamp section
- Includes a headphone amplifier powered by the same internal amp as the speakers, not an op-amp
- Multiple inputs and functions, including home theater bypass, subwoofer output, and tape output
Product Considerations
- Lacks balanced inputs and a pre-amplifier output
- The volume control can be very sensitive at low levels
- Optional MM phono stage requires additional purchase
- Requires good ventilation due to running warm
Comparisons (according to reviewers)
- Versus Cambridge Audio Edge NQ / 2 x Gold Note PA-10 setup, the EVO 300 Hybrid delivers a level of engagement that was captivating, the improvement over the normal setup slightly disconcerting
- Versus Schiit Jotunheim, the PrimaLuna bested it, with a slightly cleaner sound that let a touch more detail through
Takeaway: The PrimaLuna EVO 300 Hybrid offers a balance of tube warmth and solid-state power to give listeners the best of both worlds. Its detailed sound, robust build, and versatility make it a worthwhile addition to any audiophile's system.
Video review
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Our Summary
Product Strengths
- Impressive build quality and design for the price, with quality parts and point-to-point hand wiring, which is rare these days
- Versatile amplifier integrates into different systems due to the ability to use KT88, EL34, or 6550 tubes
- Offers a choice between triode and ultralinear modes, which can be switched on the fly, and it makes a big difference in sound
- Delivers a wide soundstage with good stereo imaging and a 3D holographic presentation
Product Considerations
- Bass, especially with KT88 tubes, can be strong and might benefit from more nuance, EL34 tubes offer a better balance
- Treble can be a little bright or have a hard edge in the upper midrange, especially with revealing speakers, although this can be addressed with tube rolling
- The remote control is functional but noisy, and the volume steps may not allow for fine adjustment
- May not be suitable for those who listen at very loud volumes, as the sound can harden up at higher levels
- Stock tubes are good, but tube rolling can significantly enhance and fine-tune the sound
Comparisons (according to reviewers)
- Vs PrimaLuna Evo 300: The R8 sounds just as good, if not better, and is built just as good, if not better, but at a fraction of the price
- Vs McIntosh 152: Some reviewers preferred the sound of the R8 over the McIntosh 152 despite the significant price difference
- Vs McIntosh 252: Some reviewers found the R8 better than the McIntosh, especially in ultralinear mode
- Vs Exposure 2510: The R8 offers similar detail and refinement to the Exposure 2510 but surpasses it in acoustic body, tonal richness, scale, and dynamics
- Vs Line Magnetic 219ia: The R8 brought back memories of the Line Magnetic 219ia but had more gusto and oomph while retaining much of the magic
Takeaway: The Willsonton R8 is a versatile and great-sounding tube amplifier that offers exceptional value, making it a worthwhile purchase for those seeking a tube sound experience without breaking the bank. It can enhance the sound of speakers and allows for music enjoyment in a more engaging manner.
Video review
Our take on the brand
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Our Summary
Product Strengths
- Very fine sense of detail, especially in the midrange and treble
- Forward presentation makes instrumentalists and vocalists seem to step out in front of the speakers
- The controls have a luscious feel
- The amplifier is beautifully made with that thick gleaming fascia exciting unequivocal admiration
- Rhythmic nuances and microdynamics propelled musical lines along with foot tapping gusto
Product Considerations
- There's a small degree of hum from the mains transformer
- Can be fatiguing to listen to for long periods, especially with aggressive recordings
- Lacks the last word in texture and extension in the bass
- Doesn't present sharply defined three-dimensional images
Comparisons (according to reviewers)
- Vs Blue Circle BC3/BC3.1 and Muse 150 monoblock amps, EAR 834 has softer and less extended bass, slightly less overall detail and clarity, and a somewhat foreshortened soundstage
- Vs E.A.R. 802 preamp combined with a CLASSÉ CA 100 amplifier, the 802/CA 100 combination was quite similar in sound to the 834
Takeaway: The EAR 834 is beautifully made, looks great, and has a special sound that can really draw you into the music and make you feel like you are there. It is an integrated amplifier with a design that invites extended listening sessions.
Video review
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Our Summary
Product Strengths
- Beautiful object with its own style, unmistakably a Jadis.
- The fit and finish is up to high standards.
- Not overly romantic and not analytical, sitting right in the sweet spot, it has clarity and transparency.
- The amp's workmanship is robust and exquisite.
- Produces a big sound that's rich, warm, full-bodied and strongly profiled.
Product Considerations
- Adjusting bias is best left to a qualified technician.
- The amp has a natural tendency to roll backward unless grasped firmly.
- Straight out of the box, the Jadis was a little rough.
- Limited absolute power output.
Comparisons (according to reviewers)
- Vs Jadis Orchestra Reference MkII integrated amplifier: The Orchestra Black is a budget version of the Reference with slight internal and external changes to improve the sound and reduce the price.
- Vs Musical Fidelity: The Jadis, a 40-watt valve amp, sounds better than spec suggests.
Takeaway: The Jadis Orchestra Black is a beautiful and well-built amplifier that delivers a smooth, clear, and natural sound. It is a great option for those curious about tubes, with a rich tonal bloom.
Video review
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Our Summary
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.
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