VOE said:
A high quality source first, then amps and lastly speakers. In stark contrast to the above opinion I've found that speakers make the least difference for the money (see my post re: Neat Motive SX1 v MA RX6 elsewhere) compared to improvements closer to the musical source where significant gains can be achieved. Rubbish in > rubbish out etc. I've always believed this because it has been proven with the various pieces of kit I've owned over the past 30 years.
I should perhaps qualify this by adding that the improvements in sources has been typically achieved by spending an average of £1000 more on each with the CDP getting the largest boost of nearly £2000 recently. Despite what some might say not all digital sources sound the same. In theory they should if they were all perfect but........The other thing to remember is that all CDP have an analogue stage. This is probably where most differences lie. I have heard a dozen or so CDP's at the £2-2,500 price point and no two sound identical. Many years ago I did compare £350 players with £700 and £1000 players and there was a huge difference between them. If spending an extra £1000 on a pair of speakers barely reveals any differences of note with more expensive gear, what can it do with a cheaper and limiting source and / or amplifiers?
The "rubbish in, rubbish out" slogan applied to a certain extent to analog systems, but it doesn't apply to digital systems to anything like the same degree.
By contrast, the reason why some people argue for spending more on speakers is that the highest levels of distortion in the audio chain occur in the speakers, and therefore it’s the speakers that will give the best return on investment in terms of lower distortion.
Here are some distortion figures for a system comprising DAC, amp and speakers:
Speakers: 2nd and 3rd harmonic distortion (45Hz - 100kHz, 90dB, 1m):
<1%
Integrated amp and DAC: Total harmonic distortion plus noise at full power:
0.00025%
OK, the figures aren’t strictly comparable, but if the playing field were made more level the figures for the speakers would be worse than they are here. For instance, our speakers only have distortion quoted down to 45Hz, even though the speakers’ -6dB point is 25Hz. This is because including the LF distortion in the overall figure would push the distortion figure up by a long way.
By contrast, the problem with the distortion figures for the electronics is that they're so low as to be barely measurable, let alone audible.
In fact, whereas electronics manufacturers generally give distortion figures, most speaker manufacturers won’t, because they don’t look good.
Anyway, this very rough comparison suggest that there’s going to be at least 400 times more distortion in the speakers than in the amp and DAC combined, and in all likelihood the situation is even bleaker for the speakers.
So what is this system?
Well, the DAC plus amp is the Devialet 400 and it costs
£11,000.
The speakers are the mighty B&W 800Ds at
£18,000.
This is a well matched system, with ample power (400W per channel) to drive the B&Ws. And the quality of the electronics in our amp + DAC is easily a match for the speakers: spending more on better electronics, in particular a DAC, will get you no benefit in terms of lower distortion or improved SQ (which isn't to say it might not give you something you personally prefer).
So, allowing for this being a rather simplistic and crude comparison and at an extreme price point, still the argument stands: the speakers are where the vast majority of the distortion is happening, and every extra pound you spend on speakers gives you a greater reduction in distortion than every extra pound you spend on electronics.
Matt