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Comparison Onkyo A-9130 vs Onkyo A-9110

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Onkyo A-9130
Onkyo A-9110
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Main
ByPass Direct mode. WRAT technology. Range 10 – 100000 Hz. DAC. Subwoofer output. remote control. Standby mode.
Device typeintegrated amplifierintegrated amplifier
Element basetransistortransistor
Amplifier parameters
Number of channels22
Frequency range
10 – 100000 Hz /+1, -3 дБ/
10 – 100000 Hz /+1, -3 дБ/
Power per channel (8Ω)30 W30 W
Power per channel (4Ω)60 W50 W
Signal to noise ratio106 dB103 dB
Signal to noise ratio (Phono MM/MC)81 dB78 dB
Damping factor9595
Harmonic distortion0.08 %0.08 %
Channel sensitivity / impedance
Line input
200 mV
47 kOhm
200 mV
47 kOhm
Phono MM/MC
4 mV
47 kOhm
4 mV
47 kOhm
REC output
200 mV
2.3 kOhm
200 mV
2.3 kOhm
Connectors
Inputs
Phono
coaxial S/P-DIF
optical
control input (IR)
Phono
 
 
 
To amplifier (Main)RCA
RCA5 pairs4 pairs
Outputs
to subwoofer
 
For acoustics2 шт2 шт
REC (to recorder)1 pairs1 pairs
On headphones6.35 mm (Jack)
Front panel
display
headphone output
display
headphone output
Features
Adjustments
bass control
treble adjustment
balance adjustment
level adjustment
loudness
bass control
treble adjustment
balance adjustment
level adjustment
loudness
More features
By-pass/Direct
ММ phono stage
external devices control
By-pass/Direct
ММ phono stage
external devices control
General
Remote control
PSUinternalinternal
Power consumption150 W130 W
Standby consumption0.2 W0.2 W
Dimensions (WxDxH)435х330х129 mm435х330х129 mm
Weight8 kg7 kg
Color
Added to E-Catalogdecember 2018december 2018

Power per channel (4Ω)

The nominal sound power output by the amplifier per channel when a load with a dynamic resistance (impedance) of 4 ohms is connected to it. See Power per Channel (8Ω) for more information on power rating and its relationship to impedance.

Signal to noise ratio

In itself, the signal-to-noise ratio is the ratio of the level of pure sound produced by the amplifier to the level of extraneous noise that occurs during its operation. This parameter is the main indicator of the overall sound quality — and very clear, because. its measurement takes into account almost all the noise that affects the sound in normal operating conditions. A level of 70 – 80 dB in modern amplifiers can be considered acceptable, 80 – 90 dB is not bad, and for advanced audiophile-class devices, a signal-to-noise ratio of at least 100 dB is considered mandatory.

If the specifications do not specify for which output the signal-to-noise ratio is indicated, it usually means its value for the linear input (see "RCA (par)"). This is quite enough to evaluate the quality of the device for this parameter. However, some manufacturers indicate it for other inputs — Main, Phono; see below for more on this.

Signal to noise ratio (Phono MM/MC)

signal-to-noise ratio when the amplifier is driven through the Phono input. This interface is for connecting turntables; its features are described in the “Inputs” section below, and for the meaning of any signal-to-noise ratio, see the corresponding section above.

Inputs

— Euroblock. Analogue audio input (usually line level) using a Euroblock connector. This connector, used mainly in professional audio equipment, is remarkable in that it is attached to the wire using terminals. This is extremely convenient when working with stripped wires (which is often required in professional applications): screwing such a wire to the plug once and connecting / disconnecting the plug to the Euroblock connector is much easier than constantly unscrewing / screwing the terminals. In addition, such a connection is often made balanced (see "XLR (balanced)" below). Inputs of this type are found mainly in information and information-concert amplifiers (see above).

— Phono. Dedicated input for connecting to the amplifier turntables; often has a suffix indicating the type of cartridge that is compatible, such as "Phono MM" or "Phono MM/MC" (see "Advanced — Phono Stage" for details). Despite the proliferation of digital formats, these players are still highly regarded by audiophiles for their high quality and fidelity, and are often used in premium audio systems. However, connecting a "turntable" has its own characteristics — in particular, it requires a phono stage (for more details, see ibid.) — and standard inputs are unsuitable for this purpose. Therefore, a Phono jack is a must if you want to connect your turntable directly, without an external phono stage.

USB B. The USB interface is widely used in com...puter technology for various peripherals. The presence of a type B input means that the amplifier can be connected to a computer as an external controlled device (slave). Most often, with this connection, it is used as an external sound card or audio interface — this provides higher sound quality and more extensive options for its settings than most built-in sound cards, even expensive ones. However, the matter is not limited to this: in some models, via USB type B, you can update the firmware or change the special parameters of the amplifier.

Coaxial S / P-DIF. Digital audio input, a variation of the S/P-DIF interface based on a conventional electrical signal (the second variation, optical, is described below). Usually uses a common RCA connector, known as a "tulip", but has rather strict cable requirements. The bandwidth of any version of S / P-DIF is quite sufficient even for high-quality multi-channel sound, and the coaxial version itself is simpler, cheaper and more reliable than the optical one, but more susceptible to interference.

Optical. Input for transmitting digital sound using light signals, via TOSLINK fiber optic cable; one of the versions of the S/P-DIF standard. The main advantage of optical fiber over traditional electrical cables is complete insensitivity to electrical interference; at the same time, it is more expensive and requires rather careful handling (in particular, it does not tolerate sharp bends).

— Balanced digital ( AES/EBU). The AES/EBU interface is used in the professional field to transmit audio in digital format. It can use several connection types; in this case, it means transmission over the so-called balanced line using an XLR connector. Both the principle of balanced connection and the connector itself are described in detail in the “XLR (balanced)” section below — however, in the case of AES / EBU, we are talking about a digital signal, not an analogue signal.

— COM port ( RS-232). A connector used to control the amplifier from a computer. Through it, you can change the settings, incl. and quite thin, and in some models even update the firmware. Usually, for such purposes, special software is required, which can be supplied with the amplifier.

Control input (IR). Connector for connecting an external infrared remote control receiver. When properly placed, such a receiver will allow you to use the remote control even in places where the signal from the remote control cannot reach the main (built-in) sensor — for example, in another room. For such purposes, not only sensors can be used as a separate device, but also system components that are compatible with the remote control — for example, players or tuners.

RCA

The number of line inputs in the amplifier design using the RCA interface. Unlike the Main input (see above), which can work with the same connectors, when connected to a linear RCA, the signal goes through all the stages of processing provided for in the amplifier — for example, adjusting the balance or frequencies (see "Adjustments"), etc. .P.

See “Amplifier Input (Main)” for details on the connector itself. Here we note that when using RCA as a linear interface, a pair of such connectors is considered one input. This is due to the fact that only one channel can be transmitted over one coaxial cable, so a pair is needed to work with stereo sound.

The number of signal inputs (of any type) determines how many signal sources can be simultaneously connected to the amplifier. Accordingly, it is worth choosing a model according to the number of inputs, taking into account the expected number of such sources: after all, it is easier to connect them all and select them through the amplifier’s remote control or control panel than to fiddle with reconnecting every time.

Outputs

— Preamplifier (Pre-Amp). The presence in the design of the device of a separate output for the signal from the preamplifier. In the type of amplifiers of the same name (see "Type"), such an output is available by definition and is the main, and sometimes the only one. On integrated models (see ibid.) , the Pre-Amp output allows you to connect an external power amplifier and use it instead of the internal one. This feature can be useful, for example, to connect a more powerful speaker instead of the original one, or to work in Bi-amping mode. It is worth noting that the Pre-Amp output can also be installed in power amplifiers, playing the role of a "splitter".

— Subwoofer. The presence in the amplifier design of a separate subwoofer output. Usually, such an output uses an RCA connector (see "Input to the amplifier (Main)"), and the function itself is implemented through a crossover, which selects the low-frequency range in the signal and redirects it to a subwoofer. The "own" output makes it much easier to connect a subwoofer : it does not require any additional equipment, the amplifier itself is enough. This usually provides for the possibility of working with any type of subwoofer — both passive and active; however, in the first case, you will need an additional external amplifier.

— Coaxial S/P-DIF. The presence in the design of the amplifier of the S / P-DIF output of an electric typ...e, with signal transmission via a coaxial cable. For more information about this interface, see the relevant paragraph in the "Inputs" section.

Optical. The presence in the design of the amplifier output for transmitting a digital audio signal over a fiber optic cable TOSLINK. For more information about this interface, see the relevant paragraph in the "Inputs" section.

Jack (6.35 mm). Presence of TRS type outputs in the design of the amplifier. These outputs are jacks for 6.35 mm Jack plugs and may look like the corresponding headphone jack (see below). However, this similarity is misleading: TRS produce sound on the principle of "one channel per plug" (an exception may be information amplifiers). This type of Jack connector is found mainly in high-end professional amplifiers.

Speakon. An interface used in professional audio equipment to connect acoustics to a power amplifier. It has become widespread in high power equipment, including concert amplifiers (see "Intended Use"), due to its increased reliability and suitability even for working with very powerful audio signals. But in household appliances it is rarely used.

Control output (IR). The control output allows the amplifier's built-in IR receiver to be used to control other components in the audio system, such as a DVD player in another room, out of range of the remote control, from the remote control. With this scheme of operation, the amplifier actually plays the role of a remote sensor, receiving commands and transmitting them through the control output to another device. Note that the very presence of such inputs and outputs does not guarantee the compatibility of various devices, especially if they are produced by different manufacturers; Sharing details should be clarified in the official documentation.

On headphones

The type of connector used to connect headphones to an amplifier.

— 3.5 mm (mini-Jack). The most popular audio connector in modern portable electronics, also found among stationary equipment. However it is considered not as suitable for high-quality sound as 6.35 mm Jack, since it gives an increased likelihood of interference at the connection point. On the other hand, the vast majority of modern headphones, of all price categories, are made specifically for this connector. This means that the presence of a mini-Jack socket in most cases will allow you to connect headphones directly, without the use of adapters — that is, in the best way.

— 6.35 mm (Jack). This connector is typical mainly for stationary audio equipment, including professional class. It provides a better connection quality than the mini-Jack (in particular, less resistance due to the larger contact area), and is also more durable and reliable. At the same time, it is worth noting that only some high-end headphone models are equipped with a “native” plug under such a connector; and to connect the popular 3.5 mm mini-Jack you will need an adapter, which can affect the sound quality.

Power consumption

The power consumed by the amplifier during normal operation. Some manufacturers may indicate average power values, some — indicators at maximum load. However, anyway, this parameter allows you to quite adequately assess the power consumption of the device and the requirements for connected power.

In addition, it can be useful if you have doubts about the accuracy of the claimed data on the output power (see "Power per channel (8Ω)"). The basic rule is that the total power rating of all channels cannot exceed the total power consumption of the amplifier. In addition, there are special formulas that allow you to derive the maximum possible rated power depending on the power supply and type of amplifier; they can be found in special sources.
Onkyo A-9130 often compared
Onkyo A-9110 often compared