Explanation of Features and Controls

Refer to Figure A.

1)Polarity switch: This two position switch allows the best match of acoustic output between the subwoofer and the main stereo speakers in the region of the crossover frequency between them. The “normal” position maintains phase from input to output, the “reverse” position changes polarity or phase by 180 degrees.

2)Power switch: This three position switch controls the power status of the subwoofer.

Off: Turns the unit off.

Auto: Places the unit in the standby mode, in this mode the subwoofer will automatically turn on when an audio signal is applied to either the high or low level inputs.

On: Turns the unit on regardless of whether a signal is present or not.

3)Subwoofer crossover : This rotary control adjusts a variable low pass filter to set the upper frequency at which the output of the subwoofer begins to roll-off. Continuously variable from 60 Hz to 160 Hz, it matches the upper frequency characteristics of the subwoofer to the low frequency response of the main stereo speakers.

4)Line level output: These RCA phono jacks provide a line level, stereo output that tracks the level of the full range signal at the line level or speaker level input. This output is provided for those wishing to “bi-amplify” their main stereo speakers.

5)Line level input: These RCA phono jacks accept a line level full range signal from the preamplifier output of a receiver or preamplifier. This full range signal is processed and amplified to power the subwoofer.

6)Speaker level input: These spring loaded terminals for speaker wire accept a stereo, speaker level, full range signal from a receiver or power amplifier. This signal is processed and amplified to power the subwoofer.

7)Fuse: For continued protection replace fuse with same type and size listed.

8)Level control: This rotary control adjusts the level of the subwoofer and is used to balance its volume with that of the main stereo speakers.

9)Status LED: This two color light emitting diode shows the status of the subwoofer electronics. “Red” indicates that the amplifier is plugged in and the power switch is either off or in standby mode with no input signal present. “Green” indicates that the amplifier is operating with signal present at the input from the preamplifier, receiver, or power amplifier.

Installation using line level inputs

A) Using a preamp or receiver with line level outputs.

If a preamplifier output is available on your receiver, or you have a preamplifier, connect it to the stereo line level RCA type input jacks on your subwoofer. Use quality shielded cables and connectors. Connect one set of shielded cables from the preamplifier output to the subwoofer input. Connect a second set of cables from the subwoofer outputs to the input of the power amplifier for your main stereo speakers. Refer to Figure D.

Note: Do not use the tape monitor output from your receiver or preamplifier because its signal level will not vary with the setting of the preamp volume control.

Preamplifier

OUTPUT

R L

Power Amplifier

R INPUT L

- + + -

Right Left

Speaker Speaker

FIGURE D

TB2 specifications

The DCM Speakers TB2 is a remarkable addition to the realm of audio equipment, bringing exceptional sound quality and innovative design to music enthusiasts and home theater aficionados alike. Renowned for their exceptional engineering and commitment to providing high fidelity sound, DCM offers a speaker that is deeply rooted in the quest for audio excellence.

One of the standout features of the DCM TB2 is its driver configuration. The speaker features a 6.5-inch polypropylene woofer, designed to deliver powerful bass response, ensuring that low frequencies are bold without overwhelming the midrange and treble elements. Accompanying the woofer is a 1-inch silk dome tweeter, which produces smooth high frequencies with a natural warmth. This combination allows for a well-rounded soundstage, suitable for various genres of music as well as movie soundtracks.

The TB2 utilizes advanced technologies to enhance its audio performance. DCM engineers have implemented a unique Time-Align technology, which ensures that sound waves from each driver reach the listener at the same time. This results in a coherent audio image, making it easier for listeners to pinpoint the location of individual instruments and vocals. Additionally, the speakers are designed with a rear-firing bass port, which enhances low-frequency output while allowing for flexible placement within a variety of room settings.

Another significant aspect of the DCM TB2 is its construction. The cabinet is crafted from high-quality materials, ensuring durability while minimizing unwanted resonance. The design is both functional and aesthetically pleasing, combining a contemporary look with classic audio principles. The compact size of the TB2 makes it a versatile option for both bookshelf and stand-alone configurations.

Moreover, the DCM TB2 is engineered for compatibility with a variety of audio systems, including home theater setups and high-fidelity stereo systems. With an impedance of 8 ohms and a sensitivity rating of 88 dB, the TB2 can be efficiently driven by various amplifiers, making it suitable for entry-level systems as well as more advanced configurations.

In conclusion, the DCM Speakers TB2 stands out for its robust engineering, advanced technologies, and harmonious sound reproduction. Offering an exceptional listening experience, it is an attractive option for anyone looking to enhance their audio experience, whether for music or movies. With timeless design and modern performance capabilities, the TB2 is poised to remain a beloved choice among audiophiles.