Rotel A14 integrated amplifier with built-in DAC test: honest transistor amplification

In the world of audio, it sometimes seems that the latest technologies have completely replaced classic solutions. However, there are devices that remind us of a simple truth: the most important thing in an amplifier is honest and powerful sound. This is the spirit of the Rotel A14 integrated amplifier, which we will take a closer look at today.

Homestyler WWSunsky-online WW

This model is interesting in that it combines a transistor circuit that has been proven over the years with a modern digital unit. The manufacturer did not chase after trendy “features” but focused on playback quality. The result is a kind of “workhorse” for the discerning listener who appreciates the essence of music.

In this article, we will take an unvarnished look at what the Rotel A14 can do, how it sounds with different speaker systems, and how convenient its built-in DAC is for listening to music from a computer or streaming services. Let's find out if this amplifier lives up to its reputation as a reliable and musical device.

Switching and control

Geekbuying WWGeekbuying WW

Based on the description, it is easy to imagine the rear panel, densely packed with inputs (though only unbalanced) and additional interfaces: preamp output, output to a second pair of speakers, control switching, including triggers and RS232, LAN connector, and an additional USB port exclusively for charging connected devices. That's a lot, isn't it? Yes, but in this case, it's not just convenient, it also allows the device to be used with a large number of different devices. As I wrote above, while separation of functions is welcome in high-end devices, for a mid-range “combine,” the more, the better.

The rear panel of the Rotel A14. The device has more connectivity options than is often the case.

Although in terms of “bigger and better,” there are certain questions about the device. For example, it can only be connected to the network via cable, with no Wi-Fi. This connection can only be used for service needs, such as firmware updates or control — this connection does not support any streaming functions (however, high-quality streaming in this price range is unlikely, which is probably why it was not implemented).

The standard remote control is quite convenient and does not take long to get used to.

However, if you want to use the Rotel Remote app (available for iOS and Android), you will also need to connect a cable. I should note that, in my opinion, the app is rather primitive, and the iOS version was noticeably slow. I don't know how it works on Android, but I wouldn't count on simple control. I hope the company will refine and update it, and we will get another convenient way to work with Rotel equipment. In the meantime, if you approach the connection correctly, you can easily get by with just a few buttons on the standard remote control.

Under the cover of the fourteenth

ChicMe WWChicMe WW

Now it's time to look under the cover of the device. Everything looks decent on the outside. The assembly is neat, and the construction is solid and reliable. Of course, there are no expensive audiophile components, but who would look for them here? Instead, there is classic class AB transistor amplification (80 W / 8 ohms per channel) and an impressive toroidal power transformer. Class D amplification is now common in this segment, but so far, everything I've heard has not convinced me of the clear advantages of class D. There have been a few exceptions where the sound was perhaps not bad, but definitely not better. Therefore, I will list the amplifier section of the Rotel A14 as a plus, but I will leave my conclusions until after listening.

Inside the Rotel A14: class AB transistor amplification, a heavy toroidal transformer in the power supply. In general, the case is quite tightly packed, including the DAC board.

Overall, the device's case is filled to capacity: there are several boards in the design, including a DAC board built on an AKM chip with support for signals up to 32-bit/768 kHz, which occupies the upper part of the case. The DAC understands signals up to 24-bit/192 kHz via optical and coaxial connections, and DSD and DoP are supported via USB. For Windows systems, you need to download and install a special driver from the Rotel website; OSX systems recognize the DAC natively.

The amplifier's phono preamplifier is designed to work only with MM cartridges and has no settings. Overall, this is logical, and perhaps an attempt to build a budget phono preamp with MC cartridge support would be unnecessary in this case.

The Rotel A14 is a transistor amplifier that does not try to sound like a tube amplifier and does not embellish the music. It simply reproduces what is recorded honestly: without excessive softness, but also without aggression. Well-balanced sound, clear bass, transparent highs, and a convenient built-in DAC make it an excellent choice for those who want quality sound without unnecessary frills. This is an amplifier you can trust — it doesn't lead, it reproduces.

First warm up, then listen

Sunsky-online WWhidemyname

I structured the testing process as follows: first, I connected the amplifier to an external DAC to evaluate it specifically as an amplifier, and then I switched to the built-in DAC in conjunction with a computer. I switched between speakers and headphones, listened to vinyl records, and finally left the connection with various gadgets.

Out of the box, the amplifier sounds sharp and rough, so I sent it to work on noise signals for a while, but without listening. After a few days of such operation, the device was sent for testing.

Rotel A14 DAC amplifier

The amplifier's sound is bright, with the highs slightly brighter than normal, but overall the sound is not without charm. Recalling my previous experience, I thought that Rotel's sound is recognizable, and this amplifier maintains that continuity.

The presentation shows a slight emphasis on the fundamental tones, but this is moderate — it certainly does not sound like military marches, and the reverberations are clearly audible and discernible. However, there is a noticeable amount of power and assertiveness that cannot be ignored. In general, the device has a good sense of rhythm, the dynamics are even across the entire range, nothing lags behind, nothing is smudged, and there is no feeling of haste.

The bass is deeper and more voluminous than I expected, with good fullness. The midrange does not deviate from the overall character of the presentation, but there is a certain simplification, or rather, an averaging of the sound. The nuances and shades of various familiar recordings are less noticeable than I would like. The presentation of the high frequencies has a degree of brightness and some straightforwardness, but these traits certainly do not reach the level of sharpness or fatigue.

Rotel A14 DAC amplifier

The scene is average in width but with little depth. The images and shots are somewhat simplified, and the camera focuses, again, on the main components rather than the details and nuances.

The detail is high, but, as I said, some averaging can be heard, especially on complex recordings and large ensembles. In terms of other characteristics, the amplifier is omnivorous and copes equally well with both small ensembles and more complex recordings. Yes, there is a slight averaging everywhere, a tendency to smooth out nuances, a slight emphasis on the high frequencies, and a specific rhythmic delivery.

Listening with the built-in DAC

Redmagic WWRedmagic WW

With the native DAC, the sound is slightly different. It is a little softer, with a more accurate presentation of the upper frequencies, solid, as if rounded. There is definitely more cohesion. However, there is also a formalization, as if the sound is averaged, regardless of the recording — this is noticeable on both regular and high-resolution releases. As a result, the shortcomings of compressed formats such as MP3 are smoothed out. Of course, you will easily notice 128 kbps, but with less compression, the angularity of the sound will not so clearly indicate its “compressed” nature.

If we compare playback from a computer, a Bluetooth aptX player, and a phone connected via a cable to the USB port on the front panel, we can see that the device attempts to balance the sound to some extent and smooth out its flaws. The difference in formats is audible, and it is incorrect to compare streaming radio from a tablet with high-resolution playback from a computer. Similarly, it cannot be said that the device plays everything the same way. The difference is noticeable, but the flaws of compressed formats are not as jarring to the ear.

The display and other lighting on the device are readable but unobtrusive.

Overall, the device can produce a fairly solid, elastic sound, albeit not overly detailed, but honest, with good volume and a clear soundstage.

As for the phono preamplifier, it does its job well within the given parameters. In combination with a budget player and MM cartridge, the result will be no worse, and sometimes even better, than when using a budget external phono preamplifier. Although in some cases, for example, when listening to a lot of vinyl records, you may want to consider choosing a separate phono preamplifier.

Something similar can be said about the headphone output. Serious headphones would be excessive here, but mid-range models costing around 6-7 thousand rubles can be used, and the sound will depend equally on the headphones and the amplifier — this is definitely a case where the components should be selected with care. Although this statement is true for any component in the chain.

In summary, the Rotel A14 is exactly what you would expect it to be: a reliable and honest amplifier without any unnecessary frills. Its sound does not try to impress with extravagance, but offers a clean, dynamic, and energetic presentation of music. This is a case where the device does not come between the listener and the recording, but simply does its job well.

The built-in DAC and abundance of modern inputs make the A14 an excellent centerpiece for a hybrid system. You can connect an old vinyl player, a computer, and a TV without losing sound quality. This makes it a very practical choice for the modern music lover who values ease of setup.

Ultimately, the Rotel A14 is a smart investment in quality sound for years to come. It doesn't claim to be a high-octane exclusive, but it offers as much musical enjoyment as many people are looking for. If you need an unpretentious, powerful, and honest all-in-one amplifier, this option definitely deserves your closest attention.

ChicMe WWChicMe WWChicMe WWChicMe WWChicMe WWChicMe WW
What function do you consider the most important in a new smartphone?
Share to friends
Alexander Smirnov

Electronics engineer with over 15 years of experience in the IT industry. My passion is disassembling and assembling gadgets. On this site I share my knowledge about technical innovations, talk about how they work, and give advice on their use and repair.

Rate author
Appliances News
Add a comment