Dynaudio Core 59 active studio monitor test
At the headquarters of the Danish speaker manufacturer in Skanderborg, the impulse response of the speakers is tested in the Jupiter Free Impulse Measurement Room. During testing, a speaker is placed in the center of the room using a robotic crane, which can also be rotated around the structure. Another robot, which is a giant sphere of 31 measuring microphones, can even rotate in a vertical plane. The Core 59 three-way studio monitor was also developed at the Jupiter facility. It weighs 24.6 kg and measures 28x38x55cm.
The speaker case is dark grey, the amplifier is class “D”, the drivers are handmade. The Esotar Pro neodymium soft dome tweeter optimizes internal airflow. Thanks to the Hexis internal dome, it eliminates resonances, smoothes the frequency response, so dynamics are maintained even at higher sound pressures and there is no distortion.
In the case of the MSP, i.e. the center speaker with a magnesium silicate polymer drive, the neodymium magnet is connected to an aluminum voice coil. The driver allows traversal at 312 Hz and 5.1 kHz, and can also handle the mid-range, thus avoiding crossover-based distortion.
The speaker has a copper voice coil and a ceramic magnet. The “D” class amplifier has a power of 500 watts, two additional “D” class amplifiers drive the high (150 Watt) and mid-band (500 Watt) drives. Class “D” amplifiers are characterized by the fact that they can produce quite high power with minimal loss, so they are extremely efficient. The tweeter and center speaker drivers are housed in a housing with a circular front deflector that can be rotated so that it can be positioned in different directions, even in a vertical position. This allows the Core 59 to stand its ground with LCR and other multi-channel as well as Dolby Atmos studio monitor systems. Rubber pads, integrated mounts and a dedicated DSP adjustment ensure stability and flexible positioning options.
The back of the speaker is covered with a large metal plate and a very large heat sink ensures proper cooling. The Core 59’s Class D amplifiers are supplied by Pascal Audio in Copenhagen. The manufacturer promises clear sound even at high volumes. Dynaudio speakers have a life expectancy of 15-20 years.
Of the three XLR connectors on the back, two handle the monitor’s balanced analog and digital audio inputs, and the third XLR output can be used to connect to another Core 59. When using the digital input, a 4-position switch allows you to set the maximum sound pressure level of the Core 59 to 88,98,100 or 112 pcs. A second 4-position slider on the analog input helps optimize the speaker signal-to-noise ratio. The Core 59’s DSP is built around an Analog Devices 64-bit chip capable of operating at sampling rates up to 24bit / 192khz. Dynaudio’s Core 59 focuses on monitor-based DSP correction. The frequency range of the Dynaudio Core 59 speakers is between 42 Hz and 21 kHz.
The easy-to-use EQ avoids phase shifts, and the 80 Hertz filter allows you to add a subwoofer. Sound Balance, or tilt filter, offers Bright, Neutral, and Dark settings. The tilt filter was developed by Quad in the 1970s. This filter improves high sound performance.
The monitor has two position settings. The first mode, Echo or Correction Free Mode (Anechoic), is a good idea to use when the monitor is in an acoustically well-managed room or when using room correction software. Desk mode is primarily used to compensate for reflections. The second position switch corrects the position of the monitor near walls. Uncompensated, ie the Free function, is useful when the monitors are placed more than 50 cm away from the wall. The Desk function corrects for low-frequency distortions and reflections that usually occur when the speaker is placed at a distance of 50 cm or less from the wall. The Corner function, which helps to place corners within 50cm.
The speaker housing is 32 mm thick and very rigid, providing linear sound generation over the entire spectrum. The speaker also comes with an operation book that provides detailed instructions on how to place them and the listening tests that are recommended to perform in order to set up the DSP correctly. For those who do not use room correction software or hardware, Dynaudio recommends using a pink noise, measuring microphone, and real-time analyzer (RTA) to monitor the performance of the Core 59 in the room. After that, it is recommended to use the DSP settings for a flatter frequency response. The free Dynaudio Meter iOs downloadable app also features pink noise and RTA. (Pink noise = 1 / f noise, a noise whose power spectrum density, i.e., energy / hertz ratio, is inversely proportional to frequency.)
During testing, we went to a sound recording studio of about 25 square feet, where the walls were treated with acoustic panels, so the sound was ideal. We first listened to Vivaldi’s Stabat mater. The accuracy of the speaker was impressive! Detailed sound, an extensive stage image, powerful, deep sounds and clarity were experienced in all ranges. It was characterized by extraordinary dynamics and detail, the instruments were separable from the vocals, there were no crossing problems in the mid-ranges. They had the same experience playing the soundtrack to Schindler’s List, which we listened to in a performance by the NL Orchestra.
The detail and accuracy of the Core 59 studio monitor is truly astounding, both the mid and high ranges sounded clear and perfect, we found no flaw in the sound. On the downside, we can only mention that this studio monitor is mostly recommended for larger rooms in studios and it is certainly good to reach deep into our pockets if we want to buy it. However, for those who don’t mind the cost and may have a larger area, feel free to choose a Dynaudio monitor, you won’t be disappointed with the sound.
Acoustic treatments greatly contribute to the optimal sound of the speakers. When choosing speakers, keep in mind some important considerations! It doesn’t matter what the room where we are going to use the speakers is, how big, what shape, what type of walls, and the acoustics of the room or studio also matter a lot. It is also important that we use the monitors for professional or hobby purposes. Completely different types of speakers are required when used in a recording or mixing studio, or attached to home theater systems, and listening to stereo music also requires different speakers.
Written by Róbert Polgár