The A40 is the perfect choice for background and foreground systems which require superior performance. Its Martin Audio signature sound characteristic also provides a seamless sonic transition within a multi-zoned complex using larger Martin Audio systems such as CDD or BlacklineX. It has a smooth frequency response and strong bass reproduction that extends down to 70Hz. With a nominal impedance of 16 ohms, multiple speakers can be driven in parallel from a single channel of a low impedance amplifier, thereby maximising efficiency and minimising cost.
It's a slice of pure audio luxury, with each speaker housed in a precision-engineered enclosure and furnished with some of the best driver tech Monitor Audio has to offer.
The system on test here includes four A10 speakers, which handle front and rear-channel duties and stand just mm high. Pricey they may be, but they're worth it.
Build quality is brilliant. The inert die-cast aluminium enclosures are robust and weighty, while the use of a metallic black lacquer finish, brush effect metal side trims and curved cabinets epitomise cutting-edge chic. Magnetic grilles leave no visible fixings — the icing on an already sumptuous cake. Like the Silver RX range, the drivers are attached to the enclosure using a single through bolt fixing, which eliminates a possible source of distortion and acts as a brace to resist unwanted vibration.
There's more clever tech inside the floor stands. While that doesn't sound very big, the speaker's 6-inch width and 7. They weigh 14 pounds each. The tweeter and woofer are each covered with black mesh grilles. The left speaker is easily distinguished from the right because it's the one with a volume-control knob, which is encircled in blue light. Be respectful, keep it civil and stay on topic. We delete comments that violate our policy , which we encourage you to read. The microphone, placed at the rear of the room, was on the axis of the left speaker and about 30 degrees off the axis of the right speaker.
Even without further correction or averaging, the swept warble-tone response of the speaker was unusually smooth. The very small difference between the left and right speaker curves above about 8, Hz attested to the excellent dispersion of the tweeters. The bass response was measured separately with close microphone spacing. This type of measurement is not fully valid above about 1.
The speaker was on a stand about 21 inches from the floor and at least 5 feet from any room wall. The microphone was located on the speaker axis 1 meter from the grille. By excluding a slight peak at about
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