Operation of the Bass EQ Switch | MK Sound MX-350THX specs

THX subwoofers	page 8

knob sets the upper rolloff point of the Subwoofer, eliminating mid-bass and midrange that are being reproduced by your Satellite speakers. The control is a means of fine-tuning the transition between your Subwoofer and Satellite speakers, and it provides a rolloff of 12 dB/octave up to 125 Hz, where the filter shifts to 36 dB/octave. The frequency where the rolloff begins is labelled on the back panel. In most systems, including M&K Satellites, about 80 Hz gives the best blend. If you don't want to experiment, set the control at 80 Hz.

The goal is to get a balanced acoustic output in your room. This is not necessarily the same as flat electrical output. Rooms typically reinforce bass frequencies around 100 Hz, so by leaving an electrical gap, you may actually get a smooth acoustical response where it matters, in the room.

Think of this control as a mid-bass fine tuning adjustment that you set to achieve the best transition between the Satellite speakers and the Subwoofer. When you hear a smooth sound overall, well balanced between the deep bass and the rest of the audible spectrum, the control is set properly.

OPERATION OF THE "BASS EQ" SWITCH

This switch gives you two choices of subwoofer response in the deep bass region below about 30 Hz. For the flattest in-room frequency response, set the switch to the "THX" position. This position also gives you the maximum output level, dynamic range, and headroom.

The "ANECHOIC" position produces flat anechoic response, which actually results in a rising output below about 30 Hz. Its in-room output will increase as you go lower in frequency, due to a phenomenon known as room gain. Room gain means that the bass produced by a subwoofer in a room actually increases in amplitude at frequencies below 30 Hz, at a rate of about 12 dB per octave. Our own measurements in a very wide variety of actual rooms have clearly documented this fact.

In the majority of cases, we strongly recommend using the "THX" position. This will give you the most accurate (flat) response, along with maximum output and dynamic range. The "EXTENDED" position is provided for measurements and for those who might prefer that acoustic characteristic.

OPERATION OF THE "BASS LEVEL" SWITCH

When using the subwoofer with a non-THX processor, preamp, etc., this switch should be set to the "VARIABLE" position. The subwoofer level can then be set independently to match your speakers.

The "REFERENCE" level control mark is calibrated to the level set by the "THX" switch. If you set the switch to "VARIABLE" and the level control to "REFERENCE," its output level is the same as when you set the toggle switch to "THX." The +3 and +6 marks indicate the points where your subwoofer is producing 3 dB and 6 dB more output, respectively, than the "REFERENCE" level.

WIRING WITH A NON-THX PROCESSOR OR PREAMP

The "FROM PREAMP" RCA terminals on the subwoofer allow you to connect the subwoofer to preamp-level components other than THX controllers, such as preamplifiers, integrated amps and receivers with preamp outputs, high-pass filters, crossovers, standard surround sound processors, etc. All of the input connections and controls for the subwoofer are located on its large metal backplate, which can be found on the back panel of the subwoofer cabinet.

MX-350THX, MX-5000THX Mk II, MX-350THX specifications

MK Sound is a renowned name in the world of high-performance audio, and their lineup, particularly the MK-5000THX Mk II and MX-350THX, showcases their commitment to innovation, precision, and immersive sound experiences. The MX-5000THX Mk II is a powerful subwoofer designed to deliver deep, rich bass that enhances any audio system, making it an ideal choice for both home theater enthusiasts and audiophiles.

Featuring advanced technology, the MX-5000THX Mk II utilizes a high-excursion 15-inch driver that creates an impressive low-frequency response down to 20 Hz. This subwoofer is THX certified, ensuring it meets rigorous standards for performance and reliability. The design approach of the MX-5000THX Mk II incorporates a dual-firing configuration, allowing it to produce a more balanced and immersive soundstage. Its robust amplifier provides 500 watts of continuous power, with dynamic peaks allowing it to deliver visceral audio that can be felt as much as heard.

In contrast, the MX-350THX is a more compact yet equally formidable subwoofer option. Its smaller 12-inch driver does not compromise performance, delivering an impressive low-end response ideal for smaller rooms or systems where space is a premium. Like its larger sibling, the MX-350THX also boasts THX certification, reflecting its ability to reproduce cinematic sound with accuracy and impact. The subwoofer is engineered with a down-firing design that aids in better integration with room acoustics, providing a smoother overall bass response.

Another standout feature across these models is the flexibility in setup options, with multiple input configurations that support various audio sources, including high-level and low-level inputs. This versatility allows users to seamlessly integrate these subwoofers into their existing home theater or music systems.

In terms of aesthetics, both the MX-5000THX Mk II and MX-350THX are designed with clean lines and a modern look, ensuring they can fit seamlessly into any room decor. With robust build quality, these units are built to withstand the rigors of home use while delivering consistent performance.

In summary, MK Sound’s MX-5000THX Mk II and MX-350THX deliver exceptional quality and performance for both casual listeners and serious audio enthusiasts. With advanced technologies, THX certification, and versatile setup options, these subwoofers represent a significant investment in sound quality, elevating any audio experience to new heights.