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
- Tonally sweet and detailed
- Able to engage with faster material
- Impressive phono stage with low noise and plenty of gain
- Extra functionality that works a charm
- 21-watt output is sufficient for any listening level
- Connectivity options
Product Considerations
- Dinky volume control is a little sensitive to over adjustment
- Input indicator is invisible at any distance
- Block type PSUs mean that they aren't quite as compact as expected
Comparisons (according to reviewers)
- The Node Nano is fractionally better doing its own decoding than the Stereo Box E, when the Node Nano is connected via the analogue out against the coax
Takeaway: The Stereo Box E is a sweet and detailed amplifier with impressive phono stage and sufficient output, which makes it a genuinely good piece of affordable two channel hifi. It provides new arrivals the starting point they need to build systems of their own
All
Stereo Box E
reviews
Manufacturer details
- Output power: 2 x 21W/40W at 8/4ohms (1%THD)
- Frequency response (20Hz-20kHz): < (-0,3dB; -2,5dB) at 4ohm
- SNR: 90 dB - 'A' weighted
- Channel separation: 60dB @ 1kHz
- THD: < 0,12% at 5W / 4 ohms
- Gain: 25dB
- Dimensions W x H x D: 206 x 51 x 115 (186)mm
- Weight: 2kg without power supply
- Power consumption in standby: <0.5W
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:
- Pro-Ject offers a range of turntables and components that focus on simple setup and ease of use, often arriving pre-configured, making them particularly appealing to beginners.
- They prioritize sonic performance, often incorporating higher-end components like carbon fiber tonearms and Ortofon cartridges, even in their more affordable models.
- Pro-Ject is known for its all-in-one audio systems that combine a turntable, amplifier, and receiver into a single unit, aiming to provide component-like sound quality in a smaller, more convenient package.
Select products
A2
- Positioning: The entry-level, fully automatic turntable designed for ease of use and convenience.
- Description: Offers a fully automatic operation with a sub-chassis design that isolates the tonearm and platter from vibrations, making it ideal for small spaces where speakers are close to the turntable. Unlike the more manual and high-end models like the Signature series, focuses on user-friendly features and affordability, making it suitable for those with a limited budget who still want quality sound.
The Classic Reference
- Positioning: Positioned as a mid-range turntable, combines traditional design with modern technology.
- Description: Features a high-end EVO 9 AS HG tonearm and a precision motor control system, providing excellent sound quality with a touch of luxury. It offers more advanced features compared to the A2, such as a balanced XLR output.
RPM 10 Carbon
- Positioning: A high-end turntable known for its innovative design and superior sound quality.
- Description: With its carbon fiber chassis and 10" Evo tonearm, delivers exceptional sound clarity and stability. It stands out from the Classic Reference with its advanced materials and design.
Signature 10
- Positioning: A premium turntable that combines mass-loading with magnetically-floating principles for high-end audio performance.
- Description: Features a 10" single-pivot tonearm and a magnetically decoupled platter, providing a resonance-free listening experience. It offers more precise adjustments and a higher level of performance compared to the RPM 10 Carbon.
Signature 12.2
- Positioning: The flagship model, representing the pinnacle of Pro-Ject's turntable lineup.
- Description: Boasts a groundbreaking 12" 3-point pivot tonearm and a flywheel belt drive system, ensuring the most accurate and stable playback. It surpasses the Signature 10 with its larger tonearm and enhanced stability.
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?
Pro-Ject Audio Systems was founded with a passion for analog audio reproduction. Our very first product, introduced in 1991, was a record player – a time when the entire industry was turning its back on vinyl. We didn’t jump on the bandwagon when vinyl became hip – we were instrumental in bringing vinyl back.
We manufacture – not only assemble – 95% of our products in the EU. Raw materials come in – finished products leave the factories. Since we make everything ourselves, we are able offer a 25 year spare part availability!
Today, we offer one of the broadest ranges of high-fidelity products in the world, including turntables, CD players, DACs, streamers, phono preamps, amplifiers, speakers, and a variety of accessories designed to enhance your system and vinyl care.
What's your approach to customer support?
Pro-Ject Audio Systems has a worldwide network of dealers and distributors. We ensure that our team members are highly knowledgeable in the field of high-fidelity audio setup and repairs. In the event of a need for support, the first point of contact is the local dealer. If the dealer cannot handle the problem, the second tier is the distributor in the respective country. By handling as many problems as possible locally, we can ensure the quickest and smoothest resolution.
What are your favorite tracks for showcasing the strength of your products?
Aside from one of the audio industry’s widest range of high-fidelity products, Pro-Ject also produces limited runs of high-quality vinyl records. 7Ray’s Jazzy Zoetrope is a double album of fine Jazz standards played by 7Ray and his quartet. One of the two records was recorded live at our headquarters in the Weinviertel region of Lower Austria. We produced the whole album in AAA for the highest analog purity. Here’s a link to the records we offer, which double as fine reference recordings across multiple musical genres.
What other products pair best with yours?
Used
Pro-Ject
What if you spend more?
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Our summary
Product Strengths
- Noted for its impossibly small and ultra-compact size, making it suitable for compact living spaces
- Offers a feature-rich design with an integrated phono stage, aptX HD Bluetooth connectivity, and additional RCA and TOSLINK digital inputs
- The unit runs cool due to its Class D amplifier design, making it energy-efficient
- Connectivity is praised, particularly the aptX HD Bluetooth, which delivers superior streaming quality
- Delivers a lively and engaging sound with excellent detail across phono and digital connections
Product Considerations
- The limited power output (23W at 8 ohms, 40W at 4 ohms) may be better suited to smaller listening spaces and efficient loudspeakers
- Some reviewers found the bass to be slightly lean, lacking heft or roundness
- The included remote control's button configuration for volume and input selection is unconventional
- The phono stage may benefit from an upgrade with an external phono amplifier for improved performance
- One reviewer found the line out voltage for the subwoofer is not strong enough to drive a powered sub
Comparisons (according to reviewers)
- Compared to the Pro-Ject Stereobox DS2, the MaiA S3 is more affordable and has digital inputs and superior Bluetooth connectivity
- Compared to the Rega Io, the MaiA S3 has strength in depth—specifically referring to the detail across the line, phono and digital connections
- The MaiA S3 is described as more resolving and ultra clean compared to the Rotel amplifier, with the Rotel offering a slightly more colored and warm sound
- Compared to the Technics amplifier, moving to the MaiA S3 results in a faster transit response, especially noticeable in classical music, while the Technics sounds slow in comparison
Takeaway: The Pro-Ject MaiA S3 is a compact and versatile integrated amplifier that delivers impressive sound quality and a range of connectivity options, making it an excellent choice for audiophiles with limited space. It is especially appealing to vinyl enthusiasts looking for a convenient and high-performing solution.
Video review
Our take on the brand
The FX10H is an evolution of our amazing FX10. They both share the same sonic signature and are twins, but the FX10H incorporates the most requested features and revisions to reduce noise. The FX10H has a blacker background that gives it a more detailed holographic sound than its predecessor. New features include a 1/4in headphone out, RCA sub out, an all-new remote, and many more improvements.
Product Strengths
- Offers a 'seductive, silky mid-range' where voices live
- The top end is extended but smooth, making it not a bright amp that would fatigue the ears
- The headphone amp is 'quite good' and comparable to higher-dollar headphone amps
- It has a dedicated subwoofer output on the back, making it easy to hook up a subwoofer
- Upgraded from the standard FX-10, it's been improved with better ventilation and tweaked circuit to create less heat, and it also comes with upgraded stock tubes
Product Considerations
- The FX-10H runs pretty warm, although improved ventilation helps
- It is 12 watts per channel
Takeaway: The FX-10H is a well-made, easy-to-use tube amplifier that delivers a beautiful, rich, and musical sound. It is a great choice for anyone wanting to experience the warmth and depth of tube amplification.
Video review
Our take on the brand
Our summary
Product Strengths
- Half-width size is desirable for storage, as two units can fit side-by-side on a typical hifi shelf
- Strong dynamic profile, dimensionality, and power for most performance speakers on the market
- Bass is much more controlled, and leading edges are significantly more defined, compared to the previous version
- Vocals feel lifelike and tangible
- Possesses a nice overall tone and a well executed lack of dryness or 'thin' character
Product Considerations
- A single Aegir 2 box delivers audiophile fun with efficient setups, but shines best in a dual mono two amp situation
- The top of the unit does heat up slightly with use
- May not be the perfect choice for high demand electrostatics
- Requires a balanced connection from the pre amp to bring out the best from the setup
- Takes a little longer to boot up compared to the original Aegir
Comparisons (according to reviewers)
- Vs Schiit Vidar: The Aegir 2 has a sound that is more rich and thick, but still defined
- Vs Aegir G1 (original): The Aegir 2 has increased dynamics and low end control compared to the original
Takeaway: The Schiit Audio Aegir 2 is a fun power amplifier that offers a strong dynamic profile and nice overall tone. It brings dimensionality and sufficient power for most performance speakers, making it an enjoyable addition to any audiophile setup.
Video review
Our take on the brand
What competes at this price?
Our Summary
Product Strengths
- Offers a full and robust sound
- Simple, stripped-down integrated amplifier that's easy to set up and use, with the essentials covered
- Solidly made, with good build quality and well-engineered controls
- The phono stage is surprisingly good, especially if paired with a modest turntable
- Features tone controls (bass and treble) adjustable by ±6 decibels, are a notable and highly recommended feature
Product Considerations
- Lacks digital inputs and Bluetooth connectivity which are common at its price point
- Has no outputs on the unit whatsoever, which makes integrating a subwoofer rather difficult
- The remote is a large plastic letdown
- At higher volumes, depending on the speakers used, the sound can become a bit aggressive
- The power output is modest
Comparisons (according to reviewers)
- Vs Marantz PM6007: Delivers a more authentic performance thanks to its pleasing resolution and greater insight into the subtleties
Takeaway: The Rotel A8 is a great starter amplifier that's easy to incorporate into any system and has surprisingly audiophile performance for the price. Its simplicity and sound quality make it ideal for those who appreciate straightforward design and solid performance.
Video review
Our take on the brand
Our Summary
Product Strengths
- Good build quality with an all-metal casing that feels solid
- Simple manual containing all necessary information
- Versatile, with options to connect via Bluetooth, optical input, or mini jack
- Can be used as a receiver for passive or active speakers
- Has banana plug options for speaker cables
Product Considerations
- The reviewer had issues separating channels, and could only get two channels to work properly
- Remote control is made of plastic and not particularly special
- Cable management can be an issue
Takeaway: The HT4S is a versatile and well-built receiver with multiple connectivity options that can be used for a variety of purposes including sim racing. The unit is powerful and delivers a punch.
Video review
Our take on the brand
Our Summary
Product Strengths
- Detailed and expansive presentation, offering a sonic upgrade to phones, especially when portability is a priority
- Versatile, with both wired and wireless connectivity options, including balanced and unbalanced headphone outputs
- Impressively small size and lightweight design, making it pocket-friendly and convenient for on-the-go use
- Sound quality is generally linear, with fast and accurate bass, flat and clean mids, and a detailed treble that is not harsh
- XBass and XSpace features offer customized listening experiences
- Build quality and aesthetics are generally well-received, with its design standing out from other devices
- ChronoDial volume knob is particularly praised for its tactile feel and functionality
Product Considerations
- Black rubberized plastic casing can feel a bit flimsy to some users
- Some reviewers noted hiss with sensitive IEMs, especially on the balanced output
- Battery life estimation can be unreliable
- No dedicated app for the device, limiting EQ and DSP options
- Lacks a clip, making it less convenient for truly portable use
Comparisons (according to reviewers)
- Compared to the Audiolab M-DAC Nano, the Go Blu offers a wider soundstage, better separation, and dynamic sensitivity, though the M-DAC Nano is fractionally punchier in the bass
- Compared to the AudioQuest DragonFly Cobalt, the Go Blu is a wireless proposition, unlike the DragonFly Cobalt, which is a USB plug-in DAC
- Compared to the FiiO Q3, the iFi GO blu highs are a bit too brilliant, but everything else sounded quite impressive
- Compared to the NuPrime Hi-mDAC, the iFi GO Blu mids sound a lot like it, even if voices are slightly less natural
- Compared to the Hidizs S9 Pro and Aune BU2, the GO Blu provides a relaxed sound and has better build and functionality compared to the Hidizs S9 Pro, but is better when using bluetooth compared to Aune BU2, however when competing on wired terms, the Aune is clearer
Takeaway: The iFi GO blu is a tiny but mighty device that delivers impressive sound and versatility—improving the wireless music experience. It is easy to use and has some cool features, making it a good pick for anyone looking for a portable upgrade for their headphones.
Video review
Our take on the brand
Our Summary
Product Strengths
- Delivers a neutral and transparent sound signature, providing an accurate representation of the source material
- Offers plenty of power for its size, capable of driving even demanding bookshelf speakers without losing composure
- Features built-in EQ presets and bass/treble tone controls for customizing the sound
- Built with high-quality materials, featuring an aluminum alloy chassis that is both durable and lightweight
- Has versatile connectivity options, including balanced XLR inputs, RCA inputs, USB input, and Bluetooth
Product Considerations
- Internal DAC and Bluetooth performance are underwhelming compared to the amplifier section
- The stock SBC Bluetooth codec limits wireless audio streaming quality
- EQ settings can be confusing and require some experimentation to dial in a balanced sound
- The volume knob might be slightly wobbly
- The power cord could be too short for some setups and might need to be replaced
Comparisons (according to reviewers)
- The MKII offers nearly double the power output and sounds more dynamic than the SMSL AO200 (original)
- Compared to the Yamaha A-670, the AO200 MKII offers more detail and soundstage, though the Yamaha is warmer and more forgiving
- The AO200 MKII has higher driving power, a more dynamic sound, and lower distortion than the Arylic A50+
- The AO200 MKII offers a more palpable and lifelike sound than the Topping PA5
- The AO200 MKII has better driving power at times, better EQ with no degradation, and is a better value than the Burson Funk
Takeaway: The SMSL AO200 MKII is a compact and powerful stereo amplifier with a neutral sound, making it a solid option for those who want clean sound, plenty of connectivity options, and customization features. It is a good value that can improve the sound of many speaker setups.
Video review
Our take on the brand
Our Summary
Product Strengths
- Phenomenal sound quality.
- Very usable and enjoyable interaction due to a physical volume knob.
- Plenty of power for almost everything and can drive just about anything.
- Versatile; it can be used as a desktop all-in-one, a Bluetooth portable DAC/amp, a portable amplifier, and even a DAC for speakers.
Product Considerations
- Susceptible to EMI noises, which can be a deal breaker; static noises, pops, and crackle sounds can occur when a phone is placed directly on top of it.
- Not a completely balanced architecture; the 3.5mm & 4.4mm headphone outputs sound the same.
- Charging port may not indicate charging on anything higher than an 18W charging block, and some chargers may not work.
Comparisons (according to reviewers)
- Vs FIIO BTR-7: Sounds more refined and has more detail and resolution.
- Vs SMSL C200: The C200 sounds significantly warmer with a fuller, juicier bass line and a little bit more airy, while the G5 is more focused on clean and clear edges, tidy, well-focused—and clean.
- Vs SMSL M500 MK2: The M500 MK2 sounds overall better with dynamics at the same level as the G5 and fuller, warmer tonality—and a bigger, more spacious soundstage.
- Vs Moondrop Moonriver 2: The treble is more refined, better details up top, and a sharp edge without being overboard like the Moonriver 2 can.
Takeaway: The G5 is a well-built and versatile portable DAC/amp with a neutral, clean, and dynamic sound. It is great for those looking for an all-in-one solution that can drive almost any headphone or IEM.
Video review
Our take on the brand
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