signal path
Pro Plus
streamer
1 rca → line in
A5+
integrated amplifier
2 2 × 3 m · 16–14 awg
Diamond 12.3
speakers
shared system
WiiM Pro Plusstreamer
Arcam A5+integrated amplifier
Wharfedale Diamond 12.3speakers
connection plan
the cables
1 Pro Plus → A5+line
Stereo interconnect
Pro Plus: Line output (RCA) → A5+: Analogue inputs 1–3 (any line/aux input)
Our pick for your systemour pickQED Performance Audio Graphite 0.6–3 m pair £35 RRP
The right match for a system at this level: properly made and correctly specified for the job.A step upChord Company C-line 2RCA to 2RCA 1 m pair £75 RRPWhat Hi-Fi? Award — Best analogue interconnect under £50, 2021
A worthwhile step up in shielding and construction, on a system that will show the difference.The aspirational choicePro-Ject Audio Systems Connect it Line S RCA (pair) 1.23 m pair £99 RRP
The aspirational choice: reference cable for when the rest of the system earns it.
The right match for a system at this level: properly made and correctly specified for the job.A step upChord Company C-line 2RCA to 2RCA 1 m pair £75 RRPWhat Hi-Fi? Award — Best analogue interconnect under £50, 2021
A worthwhile step up in shielding and construction, on a system that will show the difference.The aspirational choicePro-Ject Audio Systems Connect it Line S RCA (pair) 1.23 m pair £99 RRP
The aspirational choice: reference cable for when the rest of the system earns it.
There is insufficient evidence to prefer either DAC implementation for sound quality. An analogue connection uses the Pro Plus's DAC; a digital connection uses the A5+'s DAC. Chip specifications alone do not establish which complete path performs better. The connection shown is a practical wiring choice, not a sound-quality ranking.
verified with manufacturer documentation
2 A5+ → Diamond 12.3speaker-level
2 × 3 m, 16–14 AWG, banana plugs
A5+: Speakers → Diamond 12.3: red to red, black to black
Our pick for your systemour pickQED XT25 pre-terminated speaker cable (pair) 3 m pair £89.95 RRP
The right match for a system at this level: properly made and correctly specified for the job.A step upQED XT40i pre-terminated speaker cable (pair) 3 m pair from £139 RRP
A worthwhile step up in shielding and construction, on a system that will show the difference.The aspirational choicePro-Ject Audio Systems Connect it LS S speaker cable (pair, 4mm banana) 3 m pair £189 RRP
The aspirational choice: reference cable for when the rest of the system earns it.The cheapest routeQED QX16/4 PVC 4-core install speaker cable 6 m off the reel £20.52 approx. (£3.42/m)
Cable cut from a reel to the length you need, which is how an installer would wire this run and much the cheapest way to do it. No plugs are fitted and none are in the price: a binding post clamps bare wire directly, or you can fit your own banana plugs.
The right match for a system at this level: properly made and correctly specified for the job.A step upQED XT40i pre-terminated speaker cable (pair) 3 m pair from £139 RRP
A worthwhile step up in shielding and construction, on a system that will show the difference.The aspirational choicePro-Ject Audio Systems Connect it LS S speaker cable (pair, 4mm banana) 3 m pair £189 RRP
The aspirational choice: reference cable for when the rest of the system earns it.The cheapest routeQED QX16/4 PVC 4-core install speaker cable 6 m off the reel £20.52 approx. (£3.42/m)
Cable cut from a reel to the length you need, which is how an installer would wire this run and much the cheapest way to do it. No plugs are fitted and none are in the price: a binding post clamps bare wire directly, or you can fit your own banana plugs.
Keep left and right runs equal learn why →
Leave the links in place on the Diamond 12.3The Diamond 12.3 has two pairs of binding posts, joined by metal links or short jumper leads. The single run above connects to either pair with the links left in. Take them out and only half the speaker is fed — you lose the bass or the treble depending on which pair you used. Bi-wiring is the alternative: two runs per channel from the same amplifier terminals, one to each pair, links removed. It is optional, and a single good cable is the better buy before a second run.
verified with manufacturer documentation
Please verify connections with your equipment’s user manuals. See our Disclaimer & Accuracy.