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Comparison ESI U22 XT vs Behringer U-PHORIA UM2

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ESI U22 XT
Behringer U-PHORIA UM2
ESI U22 XTBehringer U-PHORIA UM2
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Form factordesktopdesktop
Number of channels
2 in
2 out
2 in
2 out
ConnectionUSB 2.0 type BUSB 2.0 type B
DAC
24 bit
96 kHz
16 bit
48 kHz
Frequency range20 – 20000 Hz
Preamplifier1 pcs
1 pcs /XENYX/
Inputs
Total Jack / XLR audio inputs
x1 Combo XLR and x1 Jack
x1 Combo XLR and x1 Jack
MicrophoneCombo XLR 1 pcsCombo XLR 1 pcs
InstrumentJack x1Jack x1
LineCombo XLR x1 / RCA 1 pairCombo XLR 1 pcs
RCA (pair)1
Outputs
Total Jack/XLR audio outputs
Jack x3
Jack x1
LineJack x2RCA (1 pair)
RCA (pair)1
To monitorsJack x2RCA 1 pair
HeadphonesJack x1Jack x1
Features
Phantom power
ASIO
Front headphone output
Headphone level adjustment
Software includedBitwig Studio 8-Track, Audified inTone 2 ESI Edition, Steinberg Cubasis LE
General
ОСWindows / macOSWindows / macOS
Power supplyUSBUSB
Dimensions (WxDxH)175x120x45 mm128x118x46 mm
Color
Added to E-Catalogoctober 2016july 2015

DAC

Characteristics of the built-in DAC - a digital-to-analog converter for converting digital audio into line-level analog audio, usually in stereo format.

— Bit depth. Bit size of the digital-to-analog converter (DAC) used in the device. In this case, the meaning of this parameter is as follows: the bit depth of the DAC must be no lower than the bit depth of the audio signal with which the converter is planned to be used, otherwise the device will not be able to effectively cope with the conversion. As for specific values, the standard options in modern audio interfaces are 16 bit, 24 bit and 32 bit.

- Sampling frequency. The sampling rate of the digital-to-analog converter (DAC) installed in the audio interface. Let us recall that such a converter is responsible for converting digital audio into an analog audio signal. The paragraph usually indicates the maximum value of the sampling frequency, for which one of the standard values corresponding to a certain sound quality is used ( 48 kHz, 96 kHz, 192 kHz).

Frequency range

The audio frequency range supported by the device. Most often we are talking about the range of frequencies that a device can produce in an analog audio output signal.

In general, the wider the frequency range, the fuller the sound, the lower the likelihood that the audio interface will “cut off” the upper or lower frequencies. However, it must be taken into account that the human ear is capable of hearing sounds at frequencies from 16 to 22,000 Hz, and the upper limit decreases with age. So from a practical point of view, it makes no sense to provide a wider range in audio technology. And the impressive numbers found in high-end devices are rather a “side effect” of advanced electronic circuits and are given in the specifications mainly for advertising purposes. Also remember that the overall sound quality is affected by many other factors besides frequency range.

Line

The type of line input provided in the device. Uses the line input to feed audio from an external source to the audio interface.

The following types of connectors can be used for line input:

mini-Jack (3.5 mm). A socket for a standard mini-Jack plug (3.5 mm). The connector serves as an audio input for two stereo channels. It is designed primarily for portable electronics such as smartphones, pocket players, etc. In stationary devices, Jack (6.35 mm), XLR and RCA are more popular.

Jack (6.35 mm). A common audio connector for transmitting an analog signal. In design, this type of socket is as similar as possible to a mini-Jack (3.5 mm), but differs in size. Jack connector (6.5 mm) provides tight contact and is less susceptible to interference. It also supports a balanced connection - high-quality transmission of audio signals over fairly long wires with effective protection against interference.

- XLR. The XLR standard is considered professional - not only because of the high quality of signal transmission, but also because of its fairly large size and the presence of locks for securely securing the plugs. However, only one channel of audio can be transmitted over one cable, so XLR outputs are usually installed in pairs - based on stereo sound. Also note that these connectors can be combined with Jack sockets (6.35 mm). They also allow y...ou to implement a connection in a balanced format with a high degree of noise immunity and the use of fairly long wires without affecting the frequency of the analog signal.

- RCA. Connector for coaxial cable with tulip type plug. The standard RCA input consists of two jacks - for stereo sound, left and right channel. One analog RCA connector can only transmit one channel of audio, so the number of such connectors corresponds to the number of channels supported by the device.

RCA (pair)

The number of pairs of RCA input connectors (pair)(see above) in the audio interface design. By “pair” in this context we mean two RCA connectors, usually intended for stereo audio - left (Left) and right (Right) channels.

Total Jack/XLR audio outputs

— Total audio outputs Jack / XLR. The total number of analog audio outputs such as Jack (6.35 mm) and/or XLR (this interface can be combined with a “jack”). Note that such connectors can play the role of both the Main output and the linear output. For more details, see the relevant paragraphs.

— mini-Jack. The standard 3.5 mm mini-Jack is usually used in audio interfaces as an analog (line) output for two stereo channels, as well as as an output for connecting headphones (see the corresponding paragraphs).

Line

The type of line output provided in the audio interface design. It outputs a line-level analog audio signal. This interface is mainly used for connecting recording devices, outputting a signal to playback equipment or to an external amplifier. And the types of connectors used for linear output can be as follows:

mini-Jack (3.5 mm). A standard socket for the popular mini-Jack plug (3.5 mm), used as a line output. This connector is mainly used to connect some models of active speakers, while two stereo channels are usually output through one mini-Jack (3.5 mm). Note that headphone outputs, which also use a mini-Jack, are considered separately - see the corresponding paragraph.

Jack (6.35 mm). A larger analogue of the mini-Jack connector (3.5 mm) for outputting an analog stereo signal. The Jack output provides a more reliable and noise-free connection, making it ideal for professional applications. Effective protection against interference is possible with a balanced connection method. To save space, the 6.35 mm output can be combined with an XLR connector (see the corresponding paragraph). The disadvantage of this design is the impossibility of using both interfaces simultaneously. Jack line outputs (6.35 mm) adhere to the “one channel per connector” principle.

- XLR. A round three-pin connector for outputting a line-level analog audio signal, oft...en with a balanced connection type. Transmission is carried out over three wires instead of two, and during it the noise induced on the wire is eliminated. This allows the use of fairly long cables without compromising the “purity” of the signal, making this type of connection excellent for professional audio equipment. XLR is also considered a professional interface, both due to the ability to work with a balanced signal and due to increased reliability: such connectors are often equipped with locks to secure the plugs.

- RCA. Analog linear audio output using RCA connectors - so-called “tulips” (due to the characteristic shape of the plugs). The standard output of this type consists of two connectors - for the left and right stereo channels. Also note that RCA connectors can be used in other output interfaces, but they have their own names.

RCA (pair)

The number of pairs of RCA output connectors(see above) in the audio interface design. By “pair” in this context we mean two RCA connectors, usually intended for stereo audio - left (Left) and right (Right) channels.

To monitors

Output connectors for connecting monitor speakers or headphones. Connecting monitors to the output of an audio interface allows musicians, sound designers, or sound engineers to monitor audio quality in real time. In audio interfaces, monitor outputs can be made in various formats, but most often there are various combinations of RCA, XLR and Jack connectors (6.35 mm), less often - the classic mini-Jack (3.5 mm).

Headphone level adjustment

Adjusting the headphone volume. This level control is provided mainly for user comfort - it allows you to set the sound level to your own preferences. This possibility is especially relevant in light of the fact that headphones are rarely equipped with their own volume controls.
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