Switching from an RCA connection to a balanced connection changes how noise travels between two devices. The principle is well known: two signals of opposite polarity, a separate ground, and an input stage that subtracts one from the other. The cable must still preserve this balance from end to end. This is the territory of the second tier in AudioQuest’s Rivers series, positioned between the Red River and the Yukon.
Triple Balanced geometry is based on three independent conductors: one for the positive signal, one for the inverted signal, and a third reserved for the ground reference. The shielding covers the entire length and carries no signal. The distinction is far from cosmetic. On a cable where the shield serves as the return conductor, radio-frequency interference picked up by this enclosure modulates the devices’ ground reference, and that modulation ultimately appears in the audio signal. By separating the two functions, the Mackenzie leaves the shield with its sole role as a barrier. The same geometry is found on the RCA version of the cable, where the two signal conductors remain separate from the ground.
The conductors are made of Perfect Surface Copper+, the finest copper in the AudioQuest catalogue, surpassed only by the PSS silver reserved for higher series. The work focuses on surface condition: the wire is protected at every drawing and manufacturing stage to remain smooth, with the brand aiming to reduce distortion related to grain boundaries. This marks the difference from the Red River, which remains one step below in metallurgy.
All conductors are solid rather than stranded. AudioQuest’s argument concerns the electrical and magnetic interaction between adjacent strands, which a solid conductor eliminates by design. It is best understood for what it is: a matter of purity and geometry, not cross-section. At audio frequencies, skin effect remains marginal with such thin cross-sections.
Achieving full-coverage shielding is easy. Preventing captured radio frequencies from reaching the devices’ ground plane requires more, and that is the purpose of the in-house noise-dissipation system. Three alternating layers of metal and carbon-loaded synthetics “shield the shield”: they absorb and reflect most of the interference energy before it reaches the layer connected to ground. The Red River makes do with dissipation through a metal layer; the move to the three-layer carbon network is the other structural difference between the two models.
In a contemporary hi-fi cabinet, the benefit is tangible: switch-mode power supplies, internet boxes, Class D amplifiers and lighting dimmers saturate the radio spectrum around the equipment, and this pollution ultimately enters through the interconnects.
Hard-Cell Foam insulation is nitrogen-injected expanded polyethylene, creating gas pockets in contact with the conductor. Nitrogen absorbs virtually no energy and therefore does not release it as distortion, unlike solid PVC. The foam’s rigidity has a second function: it maintains constant spacing between the conductors along the entire length, which stabilizes the cable’s characteristic impedance.
The trade-off is noticeable during installation. The Mackenzie is a firm cable, clad in a black and brown braid, which requires a few centimetres of clearance behind the rack and does not tolerate tight bends well. For constrained cable runs, it is better to allow some slack rather than force the bend radius close to the plugs. The Yukon, one tier above, uses polyethylene air tubes.
The male and female XLM connectors are assembled without solder. AudioQuest cold-welds the conductor to the pin, as solder is a foreign alloy inserted into the signal path. The ground bodies are stamped rather than machined: the metal can therefore be selected for its electrical qualities rather than its machinability. The contact is silver deposited directly onto high-purity purple copper, without the nickel underlayer commonly found on standard connectors.
This construction has a practical consequence: the cable is made to order in the Irvine, California workshops, and cannot be reterminated at home. Non-catalogue lengths and terminations are handled through the dealer, with a lead time. The conductors are oriented in a direction determined by the manufacturer through listening tests, and an arrow printed on each plug indicates the connection direction, from source to destination.
One point deserves to be stated clearly: common-mode noise rejection is the work of the receiving component’s differential input stage, not the cable. The Mackenzie cleanly carries both polarities; it does not create balance. Some devices fitted with XLR sockets convert the signal back to unbalanced immediately behind the connector; the connection works, but the expected benefit is reduced. Checking what the electronics actually do upstream and downstream avoids disappointment.
Where the balanced connection delivers on its promise, it tolerates long lengths without significant degradation, something an RCA connection handles less well. By convention, an XLR output delivers a level approximately 6 dB higher than the RCA output of the same device, a difference that becomes noticeable when comparing two inputs by ear.
The cable connects any device fitted with analogue XLR sockets: digital-to-analogue converter to preamplifier, preamplifier to power amplifier, network player or CD player to integrated amplifier, audio interface or console to active speakers. A stereo connection requires two cables, one per channel.
One caveat to keep in mind: this is an analogue cable. An AES/EBU digital connection, which also runs on XLR plugs, requires a characteristic impedance of 110 ohms and a cable designed for that purpose. Using an analogue interconnect for this connection sometimes works, but can lead to read errors depending on length and sampling frequency.
AudioQuest offers the Mackenzie XLR individually or as a pair. A standard stereo connection requires two cables, one per channel. Individual purchase is mainly intended for mono connections, such as a subwoofer with an XLR input or a center channel.
The cable has a female connector and a male connector. The female connector plugs into the source output, and the male connector into the input of the receiving component. The arrow printed on the connectors confirms this direction of flow, from the source to the destination.
It is electrically possible, but the adapter connects the inverted signal pin to ground. The connection becomes unbalanced again, the level drops by approximately 6 dB, and the benefits of the three-conductor geometry disappear. For an RCA connection, the RCA version of the Mackenzie uses the same internal design.
The pinout is compatible and phantom power would pass through without difficulty, but that is not its intended use. Mackenzie is an installation cable, rigid and made to order in a specified length. A stage cable requires flexibility and resistance to repeated handling, which this construction is not designed for.
Yes. The catalog covers several standard lengths, and AudioQuest accepts specific lengths and terminations through an authorized dealer. As each unit is assembled to order, these requests extend the delivery time.
Emmanuel
Very good product. Handle with gloves as the silver connection gets tarnished by finger sweat. Much better performance than an RCA of equivalent price.
Comment from April 09, 2025 — Experience from February 21, 2025
Benoît
Audioquest is the benchmark for me. Cable connecting my DAC to my integrated amplifier. Very high-quality manufacturing and performance.
Comment from June 02, 2024 — Experience from May 16, 2024
