Comparison Yamaha A-S701 vs Yamaha A-S501

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	Yamaha A-S701	Yamaha A-S501
	from £499.00 up to £1,171.96 Compare prices 4	from £422.88 up to £749.00 Compare prices 8
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TOP sellers	Amazon.co.uk £1,172.00 Buy in shop Electricshop.com £635.00 Buy in shop AV.com £499.00 Buy in shop	Amazon.co.uk £499.00 Buy in shop Electricshop.com £423.00 Buy in shop AV.com £639.00 Buy in shop
Device type	integrated amplifier	integrated amplifier
Element base	transistor	transistor
Capacitor capacitance	12 mF	12 mF
Amplifier parameters
Number of channels	2	2
Frequency range	10 – 100000 Hz	10 – 100000 Hz
Power per channel (8Ω)	100 W	85 W
Power per channel (6Ω)	120 W	100 W
Signal to noise ratio	99 dB	99 dB
Signal-to-noise ratio (Main)	104 dB
Signal to noise ratio (Phono MM/MC)	82 dB	82 dB
Damping factor	240	240
Harmonic distortion	0.019 %	0.019 %
Channel sensitivity / impedance
Line input	200 mV 47 kOhm	200 mV 47 kOhm
Phono MM/MC	3 mV 47 kOhm	3 mV 47 kOhm
REC output	200 mV 1 kOhm	200 mV 1 kOhm
Connectors
Inputs	Phono coaxial S/P-DIF optical	Phono coaxial S/P-DIF optical
To amplifier (Main)	RCA
RCA	4 pairs	4 pairs
Outputs	to subwoofer	to subwoofer
For acoustics	4 шт	4 шт
REC (to recorder)	2 pairs	2 pairs
On headphones	6.35 mm (Jack)	6.35 mm (Jack)
Front panel	indicators headphone output	indicators 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 auto power off ММ phono stage additional speaker connect Bi-Wiring	By-pass/Direct auto power off ММ phono stage additional speaker connect Bi-Wiring
General
Remote control
PSU	internal	internal
Power consumption	270 W	240 W
Standby consumption	0.5 W	0.5 W
Dimensions (WxDxH)	435x387x151 mm	435x387x151 mm
Weight	11.2 kg	10.3 kg
Color
Added to E-Catalog	january 2015	january 2015

Price comparison

Power per channel (8Ω)

The nominal sound power output by the amplifier per channel when operating with a load having a dynamic resistance (impedance) of 8 ohms. In our catalog, this parameter is indicated for the mode when all channels of the amplifier work under load (see "Number of channels"); in the presence of unused channels, the rated power may be slightly higher, but this mode cannot be called standard.

Rated power can be simply described as the highest output signal power at which the amplifier is able to work stably for a long time (at least an hour) without negative consequences. These are average figures, because in fact, the audio signal is by definition unstable, and individual level jumps can significantly exceed the rated power. However, it is she who is the main basis for assessing the overall loudness of the sound.

This indicator also determines which speakers can be connected to the amplifier: their rated power should not be lower than that of the amplifier.

According to the laws of electrodynamics, with different dynamic load resistance, the output power of the amplifier will also be different. In modern speakers, the standard values \u200b\u200bare 8, 6, 4 and 2 Ohms, and power levels are indicated for them.

Power per channel (6Ω)

The nominal sound power output by the amplifier per channel when a load with a dynamic resistance (impedance) of 6 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 (Main)

Signal-to-noise ratio when the amplifier is operating through the Main input. For more details on the value of the signal-to-noise ratio, see the relevant paragraph above, about the Main input — p. "Input to the amplifier (Main)".

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.