Front Panel

The main area of the display is occupied by the output display(s). Both single and dual trace dis- plays are available. In addition, each display can be formatted as a large numeric readout with bar graph, a polar graph, or a strip chart.

A complete description of the screen display options follows in the next section.

SOFT KEYS

The SR850 has a menu driven user interface. The 6 soft keys to the right of the video display have different functions depending upon the information displayed in the menu boxes at the right of the screen. In general, the soft keys have two uses. The first is to toggle a feature on and off or to choose between various options. The second is to highlight a parameter which is then changed using the spin knob or numeric keypad. In both cases, the soft keys select the parameters which are dis- played adjacent to them.

KEYPAD

The keypad consists of five groups of keys. The ENTRY keys are used to enter numeric parame- ters which have been highlighted by a soft key. The MENU keys select a menu of soft keys. Pressing a menu key will change the menu boxes which are displayed next to the soft keys. Each menu presents a group of related parameters and functions. The CONTROL keys start and stop actual data acquisition, select the cursor and toggle the active display. These keys are not in a menu since they are used frequently and while dis- playing any menu. The SYSTEM keys print the screen to a printer and display help messages. Once again, these keys can be accessed from any menu. The AUTO keys perform auto functions and are accessible from any menu.

A complete description of the keys follows in the next section.

SPIN KNOB

The spin knob is used to adjust parameters which have been highlighted using the soft keys. Most numeric entry fields may be adjusted using the knob. Some parameters with many options, sensi- tivity for example, use the knob to select the desired option. In addition, functions such as dis- play zooming and scrolling use the knob as well.

In these cases, the knob function is selected by the soft keys. The [CURSOR] key, which can be pressed at any time, will set the knob function to scrolling the cursor if there is a strip chart dis- played.

DISK DRIVE

The 3.5" disk drive is used to store data and instru- ment settings. Double sided, double density disks should be used. The disk capacity is 720k bytes formatted. The disk format is DOS compatible. Disks written by the SR850 may be read by PC compatible computers equipped with a 3.5" drive and DOS 3.0 or higher.

Only use double sided double density (DS/DD) disks. Do not use high density (DS/HD) disks.

FRONT PANEL BNC CONNECTORS

Refer to the previous section, SR850 Basics, for detailed information about each input or output.

Reference Input

The reference input can be a sine wave (rising zero crossing detected) or a TTL pulse or square wave (rising or falling edge). The input impedance is 1 MΩ AC coupled (>1 Hz) for the sine input. For low frequencies (<1 Hz), it is necessary to use a TTL reference signal. The TTL input provides the best overall performance and should be used whenever possible.

Sine Out

The internal oscillator output has a 50Ω output impedance and varies in amplitude from 4 mVrms to 5 Vrms. The output level is specified into a high impedance load. If the output is terminated in a low impedance, such as 50Ω, the amplitude will be less than the programmed amplitude (half for a 50Ω load).

This output is active even when an external refer- ence is used. In this case, the sine wave is phase locked to the reference and its amplitude is pro- grammable.

A TTL sync output is provided on the rear panel. This output is useful for triggering scopes and other equipment at the reference frequency. The TTL sync output is a square wave derived from the zero crossings of the sine output.

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SRS Labs SR850 manual Front Panel
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SR850 specifications

The SRS Labs SR850 is a high-performance audio processor designed to enhance the listening experience across a variety of applications. With its advanced technologies, the SR850 delivers superior sound quality that is particularly noticeable in environments where audio clarity and fidelity are paramount. This device caters to audio professionals, audiophiles, and casual listeners who demand exceptional performance from their audio systems.

One of the standout features of the SR850 is its proprietary SRS 3D Audio technology. This innovative feature creates a more immersive soundstage, allowing users to experience audio as if they were in a live performance setting. By adding depth and dimension, it elevates the listening experience, making music, movies, and games far more engaging.

Additionally, the SR850 incorporates SRS dialog clarity technology, which enhances speech intelligibility in dialogues and vocals. This is particularly beneficial in film and television viewing, where dialogue can sometimes be drowned out by background music or sound effects. With dialog clarity, users can enjoy crystal-clear conversation tracks without adjusting volume levels continuously.

The device also supports various audio formats, ensuring compatibility with a broad range of media. It boasts inputs for both digital and analog sources, allowing connections to various devices such as TVs, laptops, gaming consoles, and more. The versatility of inputs makes the SR850 a convenient addition to any home entertainment system.

Another impressive characteristic of the SR850 is its compact and user-friendly design. The intuitive interface makes it easy for users to adjust settings to their preference, whether they are a novice or an audio expert. The device is equipped with programmable presets, enabling users to store their favorite sound profiles, making switching between settings quick and hassle-free.

Furthermore, the SR850 features advanced EQ capabilities, granting users the ability to tailor the audio output to their specific tastes. This personalized approach to sound adjustment enhances the overall experience, allowing users to get the most out of their audio content.

In summary, the SRS Labs SR850 is a sophisticated audio processor packed with features designed to significantly uplift sound quality and listening pleasure. With its cutting-edge technologies such as SRS 3D Audio and dialog clarity, an array of connectivity options, and customizable EQ settings, the SR850 stands out as an outstanding option for anyone looking to enhance their audio experience. Whether for professional use in sound engineering or personal enjoyment in home entertainment, the SR850 proves to be a valuable asset.
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