
VIEW
Reviews for QED Performance Audio 40i Cable Pair
SKU
Performance Audio 40i
Customer Reviews
4.9 /5.0 of 31 Reviews
Superior quality, just
Daniel
4 Jan 2026
Verified Buyer
The quality is undoubtedly very high. Precisely because these are prestigious cables, I would suggest to the supplier that they should also be available individually.
In my case, I needed two different lengths for the right and left channels, as I had to manage two active speakers. Since my DSP is located near the left one, I needed one long and one short cable, given their considerable bulk. I therefore had to order two pairs of different lengths, of which I have to set aside two cables.
It would also be practical if the cable lengths were more varied. For example, instead of the 2m cable, 1.5m would have been enough for my use, and instead of the 0.6m cable, a length of 0.4m would have been enough.
Thank you.
In my case, I needed two different lengths for the right and left channels, as I had to manage two active speakers. Since my DSP is located near the left one, I needed one long and one short cable, given their considerable bulk. I therefore had to order two pairs of different lengths, of which I have to set aside two cables.
It would also be practical if the cable lengths were more varied. For example, instead of the 2m cable, 1.5m would have been enough for my use, and instead of the 0.6m cable, a length of 0.4m would have been enough.
Thank you.
Shift Toward Refinement
Jonathan O
13 Sep 2025
Verified Buyer
I replaced the TCI Tiger II with the QED Performance Audio 40i between my DAC, preamp, and power amp (Triangle Genèse + Audiolab setup).
The change brought a noticeable shift—less punchy and energetic, more refined and balanced. It feels more “audiophile,” if that’s the right word. Personally, I enjoy the smoother presentation.
Great value and fast international delivery from FutureShop.
The change brought a noticeable shift—less punchy and energetic, more refined and balanced. It feels more “audiophile,” if that’s the right word. Personally, I enjoy the smoother presentation.
Great value and fast international delivery from FutureShop.
A fine pair of cables
Johnston Lowry
5 Aug 2025
Verified Buyer
A fine pair of brilliant cables, well made, play good, and excellent value.
Beautifully made product and sound
Johnston
4 Aug 2025
Verified Buyer
Delighted with the quality of this proportionately priced pair of cables.
Great value!
Great value!
BRILLIANT QUALITY AND PERFORMANCE
CARLTON .W
1 Aug 2025
Verified Buyer
EXCELLENT PERFORMING CABLES FROM A DISTINGUISHED BRAND - THEY GIVE A DETAILED AND SOLID SOUND THAT ENHANCES THE LISTENER TO GIVE A PLEASURABLE EXPERIENCE AND GIVE THE BEST QUALITY TO ANY HI-FI SYSTEM THAT REQUIRES THE BEST FOR THEIR AUDIO EQUIPMENT - I WOULD RECOMMEND THESE CABLES IF YOU WISH TO UPGRADE YOUR CURRENT SETUP
Great quality and good value
Paul Hoult
17 Feb 2025
Verified Buyer
I have always been sceptical of spending a lot of money on cables, but having bought a few now, I can see the benefits. The audio becomes fuller, and details you missed before become apparent.
QED Performance 40i RCA Interconnect cable
Simon
10 Feb 2025
Verified Buyer
Very pleased with this cable for the price. It extracts a lot of detail from the sound source, Cambridge Audip MXN10 Music Streamer
Excellent service from Future Shop.
Excellent service from Future Shop.
Brilliant product, excellent service
Nick Hirst
7 Oct 2024
Verified Buyer
Great cables that do make a difference and excellent service from Futureshop!
Good cable
RH
8 Feb 2024
Verified Buyer
For its price point, this is a really good interconnect. Purchased for my study system to connect a streamer: BW 685s2 on half-weighted BW stands/ Audioquest 14/4 Slip (SW, joined cores)/ Rega Brio/ Cambridge MXN10, streaming hi res.
I already have a Cambridge CXNV2 joined to a CXA81 using QED reference 40, which is a great interconnect and better than 40i for sure. But this has the same smooth, balanced, engaging sound. It might lack immediate 'whack' (there are cables out there that are quite dramatic), but during extended listening, there is no fatigue, and it copes with all music types.
The Brio is a touch bright, and this cable softens that. Composed and great value cables; I always go back to QED. In my view, it's good to stick with what you know and like. Every variable in the hi-fi world makes a difference - good or bad -and getting things right can be time-consuming. Yes, that's half the fun - I was making my own loudspeaker cabinets over 50 years ago - but there comes a time to put all that experience to good use!
I already have a Cambridge CXNV2 joined to a CXA81 using QED reference 40, which is a great interconnect and better than 40i for sure. But this has the same smooth, balanced, engaging sound. It might lack immediate 'whack' (there are cables out there that are quite dramatic), but during extended listening, there is no fatigue, and it copes with all music types.
The Brio is a touch bright, and this cable softens that. Composed and great value cables; I always go back to QED. In my view, it's good to stick with what you know and like. Every variable in the hi-fi world makes a difference - good or bad -and getting things right can be time-consuming. Yes, that's half the fun - I was making my own loudspeaker cabinets over 50 years ago - but there comes a time to put all that experience to good use!
No distortion or interference
John Cummings
28 Dec 2023
Verified Buyer
I only buy QED cables because of the high quality, clear sound, and no distortion. I have compared QED cables to other cheaper products, but you can’t beat QED, so I don’t even have to think about anything other than QED.
Do yourself and your wallet a favour and buy the right cables to begin with.
Thank you, Future Shop, for the fast, friendly service and shipping. The cables were well-packed, and I received them in record time.
Do yourself and your wallet a favour and buy the right cables to begin with.
Thank you, Future Shop, for the fast, friendly service and shipping. The cables were well-packed, and I received them in record time.