The MPS1620P is a self-powered two-way monitor from the professional range of M&K Sound, a company with Danish headquarters that grew out of Miller & Kreisel, and its operation manual is dated November 2017. The maker positions it for reference work across recording, editing, processing and final mixing of music and film sound in stereo or multichannel rooms, used either on its own or together with any powered M&K subwoofer.
Key specs that matter
A 6.5-inch polypropylene woofer and a 1-inch low-compression soft dome tweeter each have their own amplifier - 100 W RMS and 200 W peak for the woofer, 50 W RMS and 100 W peak for the tweeter. Bass reach depends on the chosen mode. Ported in normal mode the monitor covers 45 Hz to 22 kHz within 2 dB, ported full range with wall or console loading reaches 35 Hz, sealed full range stops at 60 Hz, and sealed with the high-pass filter engaged starts at 80 Hz. Maximum output is 106 dB at 100 Hz, total harmonic distortion stays below 0.025 percent, and signal-to-noise ratio is 100 dB. The black satin cabinet measures 32.1 x 21.3 x 29.7 cm and weighs 9.2 kg.
Engineering and use context
A removable plug in the rear port turns the monitor from a reflex design into a sealed one. Combined with a Normal/Full Range bass switch and a fixed high-pass filter with a 24 dB slope, this gives five operating modes. Inputs cover balanced XLR or 6.3 mm jack and unbalanced RCA, and a sensitivity switch offers Fixed, +4 dBu and Variable positions, the last adding plus or minus 6 dB of gain around the +4 dBu reference. Input impedance is 11 kohm unbalanced and 22 kohm balanced, and the balanced input accepts up to 24 dBu. System and tweeter trim pots exist for calibration by qualified engineers. A recessed LED on the front shows when the speaker is aimed on axis, and an included L-bracket fits floor stands or wall brackets. Power draw is 15 W in standby, 30 W average and 240 W maximum, with a 115/230 V selector at the rear.
Pairing
With the port plugged, the monitor hands deep bass to an M&K subwoofer, and the maker points to its BMC-1 bass management controller, which sums up to five channels into one or two sub outputs. When a preamp, monitor controller or AV processor already provides both high-pass and low-pass filtering, the sealed mode without the internal filter is the intended choice. A mixing desk or monitor controller suits the balanced input, while a hi-fi preamp or TV connects over RCA.
Alternatives
The M&K Sound MPS2510P is another powered monitor from the brand, with two 180 W amplifier channels and switchable vertical directivity.