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Comparison Denon PMA-60 vs Denon PMA-30

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Denon PMA-60
Denon PMA-30
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Built-in Bluetooth and NFC interfaces. DSD support
NFC support
Device typeintegrated amplifierintegrated amplifier
Element basetransistortransistor
Amplifier parameters
Number of channels22
Frequency range20 – 20000 Hz
Power per channel (8Ω)30 W30 W
Power per channel (4Ω)50 W50 W
Signal to noise ratio110 dB110 dB
Harmonic distortion0.004 %0.004 %
Connectors
Inputs
USB B
coaxial S/P-DIF
optical /2/
 
coaxial S/P-DIF
optical /2/
RCA1 pairs1 pairs
Outputs
to subwoofer
to subwoofer
For acoustics2 шт2 шт
On headphones6.35 mm (Jack)6.35 mm (Jack)
Front panel
display
headphone output
display
headphone output
Features
Adjustments
bass control
treble adjustment
balance adjustment
level adjustment
bass control
treble adjustment
balance adjustment
level adjustment
More features
auto power off
Bluetooth /NFC/
auto power off
Bluetooth
General
Remote control
PSUinternalinternal
Power consumption35 W35 W
Standby consumption0.2 W0.2 W
Dimensions (WxDxH)200x240x86 mm200x240x86 mm
Weight2.7 kg2.7 kg
Added to E-Catalogoctober 2017september 2017

Frequency range

The range of audio frequencies that the amplifier is capable of handling. The wider this range, the more complete the overall picture of the sound, the less likely it is that too high or low frequencies will be “cut off” by the output amplifier. However, note that the range of sound audible to a person is on average from 16 Hz to 20 kHz; There are some deviations from this norm, but they are small. At the same time, modern Hi-Fi and Hi-End technology can have a much wider range — most often it is a kind of "side effect" of high-end circuits. Some manufacturers may use this property for promotional purposes, but it does not carry practical value in itself.

Note that even within the audible range it does not always make sense to chase the maximum coverage. It is worth, for example, to take into account that the actually audible sound cannot be better than the speakers are capable of giving out; therefore, for a speaker system with a lower threshold of, say, 70 Hz, there is no need to look for an amplifier with this figure of 16 Hz. Also, do not forget that a wide frequency range in itself does not absolutely guarantee high sound quality — it is associated with a huge number of other factors.

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.
Denon PMA-60 often compared
Denon PMA-30 often compared