# Definitive Technology DM40

Floorstanding passive loudspeaker from the Dymension series, made by Definitive Technology (🇺🇸 US).

Source: https://truescaleaudio.com/en/speaker/definitive-technology-dm40
Manufacturer page: https://www.definitivetechnology.com/en/product/floor-standing/dymension-dm40/300567.html

## Dimensions

| Dimension | Metric | Imperial |
| --- | --- | --- |
| Height | 950 mm | 37.4 in |
| Width | 261 mm | 10.3 in |
| Depth | 255 mm | 10 in |
| Weight (each) | 17.3 kg | 38 lb |

## Drivers

- 2 × 25 mm (1 in) tweeter — aluminium-oxide dome, one front-firing, one rear-firing; a rear switch drops the back one 6 dB
- 4 × 114 mm (4.5 in) mid-bass — 4.5 in.; two front-firing, two rear-firing

## Specifications

| Specification | Value |
| --- | --- |
| Type | Floorstanding |
| Power | Passive |
| Enclosure | Bass reflex, rear port |
| Frequency response | 55–23000 Hz (±3 dB) |
| Sensitivity | 87 dB |
| Impedance | 4 Ω nominal |
| Recommended amplifier | 50–250 W |
| Price (USD) | $849 each |
| Introduced | 2023 |

## About

The only Dymension tower with nothing plugged into the wall: no powered woofer, no passive radiators, no DSP — four 4.5-inch mid/basses and two aluminium-oxide domes in the bipolar arrangement, in a 25-centimetre-deep cabinet vented by a single large port on the back. It shares the DM60's width and drivers and drops the bass section, which is the whole difference in price and in reach: 55 Hz at -3 dB against the DM60's 34, so this is the one that expects a subwoofer beside it. Ordinary 4-ohm passive loading, 87 dB, 50 to 250 watts, and the same 0/-6 dB switch for the rear tweeter. $849 each.

## See it to scale

This catalogue draws cabinets at their real size side by side, which no text version can reproduce. Compare the Definitive Technology DM40 against another speaker at https://truescaleaudio.com/en/compare?a=definitive-technology-dm40