Initial System-Level Setting

The following steps will set the playback level of the system to the correct level for all tests that follow.

Turn the system volume to minimum.

Cue the R.A.B.O.S. Test CD to Track 2 and press Pause II. This track will produce band-limited pink noise in both the left and right channels.

Press Play ›. With the RSLM positioned as described above, increase the system volume until the RSLM display indicates –10dB. See Figure 5.

Figure 5. RSLM indicating the correct system level to begin tests (–10dB)

When you have completed this adjustment, press Pause II.

Setting the Subwoofer Test Level

Each of the following test tracks is about one minute long. This is normally much longer than required. Press Pause II or advance to the next test as soon as you are ready.

This step will set the subwoofer levels for measurement purposes. The objective is to scale the subwoofer’s output to make full use of the RSLM indicator range. Scaling is optimum when a 0dB reading is observed on the highest peak without triggering the over-range indication. Later, you will rebalance the subwoofer to the main speakers.

The three R.A.B.O.S. controls, ¶, • and ª, should be set to fully clockwise positions, and all measurements should be conducted with their level controls in this position. Confirm this setting before you begin this test.The Level control ¡ should be set to the mid position.

Cue Track 3 and Pause II. Track 3 continuously steps through all subwoofer test tones for approximately 1 minute. Each tone will play just long enough for the RSLM to give a stable reading.

To get accurate measurements, it is necessary to play the TSS-SUB4000 quite loud. The 0dB indication is about 94dB. At this level, frequencies below 100Hz can cause doors, win- dows, furnishings and other objects in the room to vibrate. This frequently results in clearly audible buzzes and/or rattles that come and go as each test tone plays. Strong buzzes not only sound bad; they can cause measurement errors. If you hear a buzz

or rattle during this test, it is highly recommended that you locate the source and eliminate its effects. This is actually a valuable room-diagnostic tool.

Press Play ›. As Track 3 plays, watch the RSLM carefully. Watch for peak readings. The peak reading may be no more than a brief flash. Readjust the subwoofer’s Level control ¡ until the peak level observed is 0dB without triggering the over-range indication. See Figure 6.

Figure 6. Adjusting the subwoofer levels for a 0dB peak

When finished, press Pause II.

Performing Low-Frequency Measurements

Read the following instructions fully before beginning tests.

For the following steps, you will need a Measurement Template and a pencil.

Figure 7. R.A.B.O.S. Measurement Template

7TSS-SUB4000

TSS-SUB4000 specifications

The Infinity TSS-SUB4000 is a cutting-edge subwoofer that takes home audio systems to a whole new level. Renowned for its deep, powerful bass response, this model seamlessly integrates high-tech features with robust build quality, making it a standout choice for audiophiles and casual listeners alike.

One of the main features of the TSS-SUB4000 is its high-performance 12-inch driver. This driver is expertly engineered to deliver exceptionally rich and full low-frequency sounds, making it ideal for both music and movie playback. Complementing the driver is a powerful built-in amplifier that provides peak power output. This combination ensures that the subwoofer can handle demanding audio tracks without distortion, allowing listeners to fully experience the depth of their favorite songs and soundtracks.

The TSS-SUB4000 also incorporates advanced technologies, including a sophisticated bass reflex design. This design enhances airflow and reduces turbulence, resulting in clearer and tighter bass reproduction. The incorporation of a phase control feature allows users to fine-tune the subwoofer to match their listening environment, ensuring it integrates perfectly with their main speakers.

Another key characteristic of the Infinity TSS-SUB4000 is its versatile connectivity options. It comes equipped with both line-level and speaker-level inputs, providing flexibility for various setups. Whether used in a traditional stereo configuration or as part of a more complex home theater system, the TSS-SUB4000 adapts to any audio configuration with ease.

In terms of build quality, the subwoofer is housed in a robust enclosure designed to minimize resonance and unwanted vibrations. The sleek finish not only makes it visually appealing but also ensures durability, allowing it to withstand the rigors of regular use.

Moreover, the Infinity TSS-SUB4000 features intuitive controls located on the rear panel, enabling users to adjust volume, phase, and crossover frequency to optimize sound output according to their preferences.

In conclusion, the Infinity TSS-SUB4000 subwoofer stands out in its category due to its powerful bass performance, advanced technologies, and user-friendly design. It is a worthy investment for anyone looking to enhance their audio experience, ensuring that every note and sound effect is delivered with clarity and impact. This model represents the perfect blend of innovation and practicality, solidifying its position as a top choice among home audio solutions.