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
6CB5A Single Ended
reviews
Video Review
Manufacturer details
Features
Specifications
- Input Sensitivity: 1.5V (standard version), 1.75V (parallel version)
- Input Impedance: 100 kOhm
- Inputs: SE (RCA)
- Power Output: 8W per channel (standard), 16W per channel (parallel version)
- Driver Tube: 6N7 (standard version), 6J7 (parallel version)
Description
8 Watts per channel input sensitivity 1.5 V interstage transformer coupled input impedance 100 kOhm SE ( RCA) inputs 2 chassis ( external power supply) 6N7 driver tube
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:
- VinylSavor specializes in creating fully customized, hand-wired audio amplifiers and preamplifiers, built to order according to individual customer specs.
- The brand is known for its use of directly heated triodes and silver-wound transformers in the signal path, aiming for a capacitor-less design and optimized signal transfer.
- They offer extensive tube rolling options within their designs, often supporting a wide range of tube types and offering a generous warranty on tubes supplied by them.
Select products
Select product comparisons
300B Integrated Stereo Power Amplifier
- Positioning: The entry-level integrated amplifier offering basic stereo power in a compact design.
- Description: Comes with 5W per channel, headphone and speaker outputs, and multiple inputs, making it ideal for small rooms and those on a budget. Compared with higher models that feature interstage transformer coupling or dual chassis designs, it provides straightforward functionality without additional circuitry complexity.
300B Single Ended Stereo Power Amplifier
- Positioning: A mid-tier stereo amplifier designed to deliver slightly higher power and improved sonic clarity.
- Description: Offers 8W per channel with interstage transformer coupling and a 6SN7 driver tube, making it better suited for users needing more performance than the integrated version. Compared to the entry-level model's simplicity, its design brings enhanced power handling and sound reproduction without resorting to separate mono chassis modules.
300B Single Ended Mono Power Amplifiers (2 chassis)
- Positioning: A pair of mono amplifiers in a dual chassis setup aimed at providing focused, balanced sound.
- Description: Delivers 8W per channel using interstage transformer coupling and the 801A directly heated driver tube. Relative to the stereo units, their dual chassis design offers improved channel separation while keeping costs lower than more complex assemblies.
300B Single Ended Mono Power Amplifiers (4 chassis)
- Positioning: A refined pair of mono amplifiers featuring a four chassis design with external power supplies for enhanced stability.
- Description: Provides 8W per channel with the same high-quality tube and transformer coupling but adds improved thermal management for greater reliability in larger or critical listening settings. When compared with the 2 chassis model, the extra chassis and external supplies deliver better performance consistency.
300B Single Ended Mono Power Amplifiers - Silver
- Positioning: The flagship mono amplifier pair engineered with silver wound transformers for premium performance.
- Description: Uses silver wound transformer technology to reduce distortion and achieve tighter sound control. Compared to all other models in the lineup, its enhanced build quality and precise transformer design set it apart as the top choice.
See All Products
Avg. Product Price
$10,001-$20,000
Used For Sale
0
Available (Scroll Down)
Brand Popularity
551
of 900+
Badges
Top 50 Brand
Top 250 Brand
Products Listed
38
Founding Year
2008
Our take on the brand
VinylSavor stands out for its unique use of transformer coupling and transformer volume control in preamps, along with vacuum tube rectified high voltage supplies and low impedance circuits. The brand's equipment, personally built and tested by Thomas Mayer, is engineered with custom-made transformers and multiple chokes for excellent power supply performance, eliminating the need for expensive power conditioners or exotic cables.
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?
Fully transformer coupled designs. The use of directly heated triodes not only as output tube but also as drive rand preamp tube. 600 Ohm LCR RIAA EQ in phono stages. Custom triodes for the Intrepid series (Thomas Mayer ONE, TWO and THREE). Possibility to customise each product to specific needs.
What's your approach to customer support?
I sell directly to end customers. I used to have very few resellers but due to the steep increase of production and material costs I exclusive do direct sales now to avoid price increases of the products which would otherwise be necessary. My goal is that every customer is happy and I am always available for any questions even years after the sale. When necessary I do repairs or assist in set up at the customer site.
What are your favorite tracks for showcasing the strength of your products?
I don’t have any favourite tracks, but use whatever I am in the mood for. Equipment should not be designed to work with specific music. People should use music they like for testing
What other products pair best with yours?
Admire Audio speakers.
From our interview with
Thomas Mayer
.
Brand Page
Used
VinylSavor
All of the Brand's Used Products
What if you spend more?
McIntosh
MC3500 Mk II
30000
30000
/
4
Reviews
McIntosh is one of the most iconic amplifier brands in the world, recognizable for its signature blue LED displays and distinctive industrial design. With a legacy spanning decades, McIntosh is known to many, even outside the audiophile community, and is sold in both mass-market retailers and specialized hifi stores. Their amplifiers are characterized by a warm, tube-like sound that enriches the midrange and smooths out the overall tonal balance.
Expand Details
.svg)
Our summary
Product Strengths
- Delivers 350 watts into 2-ohm, 4-ohm, or 8-ohm loads
- The design has a purity that is quite amazing
- Effortless power
- Soundstage is big
- Transparent
Product Considerations
- Not necessarily suitable for pairing with extremely cold sounding, sterile or bright speakers
Comparisons (according to reviewers)
- MC3500 is more open and airy, with base not as hard fisted, compared to Krell KSA 250
- It compares with brands like soulution, big Audio Research, and CH Precision, but at a lower cost
Takeaway: The MC3500 is an impressive amplifier that delivers a natural and pure sound, able to drive almost any speaker. If you're in the market for a McIntosh amp, this is the one that makes music sound pure, simple and unadulterated.
Video review
Our take on the brand
McIntosh is one of the most iconic amplifier brands in the world, recognizable for its signature blue LED displays and distinctive industrial design. With a legacy spanning decades, McIntosh is known to many, even outside the audiophile community, and is sold in both mass-market retailers and specialized hifi stores. Their amplifiers are characterized by a warm, tube-like sound that enriches the midrange and smooths out the overall tonal balance.
Product Page
Product Page
Balanced Audio Technology
Rex 3 Tube
25676
25676
/
1
Reviews
Balanced Audio Technology (BAT) designs all their components with fully balanced circuits and dual-mono power supplies, which deliver better channel separation and cleaner sound reproduction. BAT's signature approach includes zero global feedback and their Unistage circuit design, which amplifies the signal only once through a short signal path to preserve the original audio characteristics.
Expand Details
Our summary
Product Strengths
- 'Dynamic', 'extended', and 'smooth, yet revealing' performance
- Makes everything sound more real, providing a deeper understanding of the music
- Brings the listener closer to the essence of the original performance
Product Considerations
- Might sound a bit 'tight' when brand new, out of the box
Takeaway: The REX 3 seems to be a high-quality product that offers a very real and engaging music listening experience. It could be worth buying if you want to get closer to the heart of the music.
Video review
Our take on the brand
Balanced Audio Technology (BAT) designs all their components with fully balanced circuits and dual-mono power supplies, which deliver better channel separation and cleaner sound reproduction. BAT's signature approach includes zero global feedback and their Unistage circuit design, which amplifies the signal only once through a short signal path to preserve the original audio characteristics.
Product Page
Product Page
What competes at this price?
Thöress
SE-300B
10581
/
Released
2023
The SE300B Mono Amplifier is an all-tube power amplifier employing the famous classic 300B filamentary triode in single-ended operation mode for an output of up to 10 watts into a 4, 8 or 16 ohm loudspeaker load.
Thöress is a hifi brand known for its unique EHT Topology, which combines single-ended triode tubes with MOSFET output stages in Class-A mode, setting it apart from typical tube amplifiers through its transparency rather than warmth. The brand's products feature a distinctive vintage laboratory aesthetic with German labeling, and include the Phono Enhancer, which lets users adjust equalization curves on-the-fly without conventional tone controls.
Expand Details
Our Summary
Product Strengths
- Pure sound, free of coloration while retaining musical detail, allows a graceful and effortless listening experience
- Natural and tangible sound due to accurate reproduction of details, creates a believable presentation
- Solid and controlled bass performance, unusual for a 300B single-ended triode amplifier
- Excellent sense of touch and tactile sound, making instruments like plucked strings and bowed violins sound very convincing
- Wide and deep soundstage with good 'air', providing a transparent and 'hear-through' sound, especially with complex music
Product Considerations
- Careful matching with partnering equipment is required, especially speakers with high efficiency
- Relatively low overall gain requires a source with a high output voltage
- Output transformer links need to be correctly set for speaker impedance, requiring dealer assistance
- Some reviewers found the top end sounding a bit rolled off before use of appropriate high efficiency speakers and source gain settings
- Changing the EL803S driver valves requires carefully matched pairs supplied by Thöress
Comparisons (according to reviewers)
- Vs Shindo Haut-Brion/Corton-Charlemagne, Thöress has more treble extension and transparency, Shindo has better upper-bass/lower-midrange substance and body—and more drive
Takeaway: The Thöress SE-300B offers a supremely musical and detailed listening experience with a focus on accuracy and sonic purity. When paired with the right speakers, this amplifier could be an excellent choice to bring out the best in music.
Video review
Our take on the brand
Thöress is a hifi brand known for its unique EHT Topology, which combines single-ended triode tubes with MOSFET output stages in Class-A mode, setting it apart from typical tube amplifiers through its transparency rather than warmth. The brand's products feature a distinctive vintage laboratory aesthetic with German labeling, and include the Phono Enhancer, which lets users adjust equalization curves on-the-fly without conventional tone controls.
Product Page
Product Page
Fezz
Audio Lybra 300B
10306
/
Released
2023
One of the finest parallel single ended 300B tube amplifier made by Fezz Audio. It provides openness and spatial sound. Powerful, sublime, very involving and uniqe to itself.
Fezz Audio distinguishes itself by being the first to implement toroidal output transformers in single-ended tube amplifiers, a design choice that enhances efficiency and reduces noise. Their Evolution series, developed in collaboration with the KABO & PYDO design studio, has been recognized with prestigious awards such as the Red Dot Design Award.
Expand Details
Our Summary
Product Strengths
- Delivers an incredibly rich, flavorful midrange and a sweet, relaxed treble
- Has a more sophisticated presentation than the utilitarian bent-metal chassis sported by most integrated tube amps on the market, and the smooth lines of the chassis help the amp stand out from the crowd
- Has a clever tube cage design with a clear Plexiglass front panel that delivers an unobstructed view of the tubes and is easy to install and remove
- Is seriously quiet, and there was effectively zero noise through any of the speakers
Product Considerations
- Can sound wildly different, depending on the impedance of the speakers
- The four slightly squishy feet underneath the amp may cause stains
- The power switch is on the rear of the chassis, which may be problematic if installing the amp in a cabinet with limited access
- Needs a good 20 minutes to warm up, and on initial startup, the amp sounded a bit thin, bright, and constipated, but after one album, it opened right up
- Limited power output (15Wpc) may not be sufficient for all speakers or listening preferences, especially when wanting to play music very loud
Takeaway: The Fezz Audio Lybra 300B is a well-designed tube amplifier that delivers a rich and flavorful sound. It can bring out the best in your speakers, offering clarity and great sound.
Video review
Our take on the brand
Fezz Audio distinguishes itself by being the first to implement toroidal output transformers in single-ended tube amplifiers, a design choice that enhances efficiency and reduces noise. Their Evolution series, developed in collaboration with the KABO & PYDO design studio, has been recognized with prestigious awards such as the Red Dot Design Award.
Product Page
Product Page
Tektron
TK Two 2A3/300BPSE-I
11899
/
Released
2021
Tektron Italia handcrafts visually stunning tube amplifiers in Italy, using both vintage NOS and modern tubes to achieve exceptional audio performance. Their amplifiers are distinguished by their muscular dynamic ability and flexibility to use various power tubes (300B, 2A3, 45), creating an immersive soundstage that makes voices and instruments feel palpably present in the room.
Expand Details
Our Summary
Product Strengths
- A variety of tubes can be used (45, 2A3, PX4, PX25, 300B, or 300B XLS) to produce different power outputs (1.5 to 22wpc)
- It can operate in single-ended (SE) or parallel single-ended (parallel SE) mode
- It is very adaptable—allowing for changes to input tubes and 5AR4 rectifiers to alter the amp's sound
- Built-in bias meters and pots allow for re-biasing when changing tubes
Product Considerations
- The right speaker load (high output impedance) is needed to perform optimally
- Single-ended amps shun negative feedback, which would lower their output resistance
- Speakers not well-suited for high output impedance amps may experience premature bass roll-off and a rising presence response
Takeaway: The TK2A3/300PSES-i Ref amplifier offers a lot of flexibility for tube rolling and sound customization. It is well-suited for high-efficiency speakers.
Video review
Our take on the brand
Tektron Italia handcrafts visually stunning tube amplifiers in Italy, using both vintage NOS and modern tubes to achieve exceptional audio performance. Their amplifiers are distinguished by their muscular dynamic ability and flexibility to use various power tubes (300B, 2A3, 45), creating an immersive soundstage that makes voices and instruments feel palpably present in the room.
Product Page
Product Page
McIntosh
MC2301
13500
/
Released
From the demands of massed chorale to full-on rock and roll, the MC2301 delivers the most extraordinarily lifelike and dynamic performance ever heard from a McIntosh tube amplifier. With an output of 300 Watts, it provides enough high power to drive even the most demanding loudspeaker.
McIntosh is one of the most iconic amplifier brands in the world, recognizable for its signature blue LED displays and distinctive industrial design. With a legacy spanning decades, McIntosh is known to many, even outside the audiophile community, and is sold in both mass-market retailers and specialized hifi stores. Their amplifiers are characterized by a warm, tube-like sound that enriches the midrange and smooths out the overall tonal balance.
Expand Details
Our Summary
Product Strengths
- Fast response, with detail, and a warm tube sound
- Picks up detail with speed when playing Hi-Res digital content
Product Considerations
- Lacks sound stage depth/width, power, and feel compared to the reference system (vintage MC275 amplifiers)
- Super tweeters seemed to be sleeping—as if there was no data provided at that frequency
- Lacks a big window of performance, energy, and feel, providing a smaller window of performance albeit nice with a tube-like sound
- Bass with the MC2301s was starving when compared to the 275's
Comparisons (according to reviewers)
- Vs vintage 1960s MC275: MC2301 lacks sound stage depth/width, power, and feel, a full rich lush enveloping sound, and energy that stirs emotion
- Vs later generations of the MC275: MC2301 would be superior
Takeaway: If you don't have access to vintage MC275s, the MC2301 could be a good option, providing a tube-like sound with detail and speed. McIntosh should look back and reconsider past designs.
Video review
Our take on the brand
McIntosh is one of the most iconic amplifier brands in the world, recognizable for its signature blue LED displays and distinctive industrial design. With a legacy spanning decades, McIntosh is known to many, even outside the audiophile community, and is sold in both mass-market retailers and specialized hifi stores. Their amplifiers are characterized by a warm, tube-like sound that enriches the midrange and smooths out the overall tonal balance.
Product Page
Product Page
How to buy
Amplifiers
Search all hifi products
Explore our database of 10,000+ new and 25,000+ used hifi products.
