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CONFIGURING THE S170i

TRIGGER SETUP

The S170i is equipped with 3 12-volt trigger outputs that may be used to turn on, activate, or otherwise control ancillary components or systems, such as power amplifiers, projector-lifts, lighting systems, and more. Their function could be as simple as powering up and down your NAD S250 power amplifier, or as complex as readying an entire home-theater room for use. For more technical information on the S170i’s 12-volt trigger outputs, see Appendix 1, or consult your installing NAD audio specialist.

Simple 12-Volt Trigger Configuration Example: Powering the NAD S250 Power Amplifier

The following example employs the S170i’s 12V Trigger #1 to turn the S250 amplifier on and off in concert with the preamplifier.

Using the 12V Trigger cable supplied with the S170i connect the S170i’s rear panel 12V Triggers jack marked #1 to the 12V Trigger input jack on the power amplifier. Note that this custom cable provides an 1/8th-inch mini-plug on one end for the S170i, and a special, DC-style plug on the other to fit the S250 amplifier’s trigger input.

From the OSD Main menu, select the <Trigger setup> item using the remote’s [Cursor ], and [Enter] keys. The <Trigger 1> listings should appear as follows (these are the defaults):

polarity Posit.

delay No duration Infin.

If any other settings are in place, use the remote’s [Cursor ] and [Cursor ] keys to change them to the above conditions.

THX AUDIO SETUP

THX Surround EX creates a sixth, “center-back” channel intended for reproduction by one or more loudspeakers located behind the listening area. With recordings bearing the Dolby Surround EX mark, this delivers a specifically engineered center-back channel that is encoded into the left/right surround channels-precisely as the center channel was encoded into the left/right front channels in matrix-encoded Dolby Surround mixes. However, the THX Surround EX processing will often produce a useful center-back effect even from software that was not, originally, deliberately encoded for EX playback.

BASS LIMITER

The S170i incorporates a Bass Limiter that you can set to eliminate any chance of your subwoofer producing audible distortion. You will do this by auditioning a built-in test-noise signal the S170i sends to your subwoofer, and increasing the Bass Limiter’s “headroom” setting to the point of audible distortion. The Bass Limiter now prevents any program-material signals exceeding this level from being sent to the subwoofer.

CONFIGURING THE BASS LIMITER

From the <THX Audio setup> menu, use the remote’s [Cursor ] and [Enter] keys to select the <Bass limiter setup> item. Using the same keys, set <Bass limiter> to “On” and <Limiter noise> to “On”; you will hear a soft rumbling from your subwoofer. (If you do not hear sound from the sub, check your subwoofer audio and power connections, check Speaker Setup, below, and/or check the subwoofer’s own “hardware” control settings)

Now use the remote’s [Cursor ] keys to move to the <Limiter level> item, and [Cursor ] to decrease the limiter setting by 1 dB increments. As you do, the test-noise from the subwoofer will increase in level. Listen for the point at which audible distortions (harshening, “clacking,” “chuffing,” or other

extraneous elements) become evident, then use [Cursor ] to return (increase) the limiter level by 1 or 2 dB until the distortion ceases. This establishes the “distortion-free” limit for your current subwoofer setup. It is advisable to return and re-check your Bass Limiter setup after you have completed the Level Setup routines (see below).

Even after the Bass Limiter is set you may usefully engage its test-noise to “search and destroy” the room-rattles that are inevitably excited by high-level subwoofer output. (Window-treatments, electrical wall-plates, and hanging artwork are three common sources.)

Should you ever change subwoofers, or reposition your current subwoofer or listening position, you should repeat the Bass Limiter setup routine.

With a high-performance subwoofer, this routine can get rather loud. It is often best to await an opportune moment when spouses/children/pets are not at home to perform Bass Limiter setup fully.

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NAD S170iAV owner manual Trigger Setup, THX Audio Setup, Configuring the Bass Limiter

S170iAV specifications

The NAD S170iAV is a sophisticated audio-video receiver designed to deliver superior sound quality and enhanced user experience, making it an ideal choice for audiophiles and home theater enthusiasts alike. This model integrates advanced technologies and offers a robust feature set, ensuring it meets the demands of modern audio-visual environments.

One of the standout features of the S170iAV is its multi-channel amplification capabilities. The receiver supports a wide range of audio formats, enabling a true surround sound experience that immerses users in their favorite films and music. With its impressive power output, the S170iAV delivers clear and dynamic sound, capable of filling even the largest rooms with high-fidelity audio.

The S170iAV incorporates NAD's innovative Direct Digital Technology, which eliminates unwanted noise and distortion, providing a clean and precise sound. This technology allows the receiver to maintain an exceptional signal-to-noise ratio, ensuring optimal audio clarity, whether playing music or viewing cinematic content. Furthermore, the receiver's high-quality DAC (Digital-to-Analog Converter) enhances the overall sound performance, making it suitable for high-resolution audio formats.

Connectivity is another strong point for the S170iAV. It features multiple HDMI inputs and outputs, facilitating easy integration with various devices, including Blu-ray players, gaming consoles, and streaming devices. The receiver also supports 4K video pass-through, allowing users to enjoy the latest high-definition content without compromising quality.

For those who appreciate flexibility, the S170iAV supports various streaming services and comes equipped with built-in Bluetooth and Wi-Fi capabilities. This enables users to stream music effortlessly from their smartphones or tablets, further enhancing the receiver's functionality. Additionally, its user-friendly interface and compatibility with control apps make navigation simple and intuitive.

The design of the NAD S170iAV is both elegant and practical, featuring a sleek, modern aesthetic that fits seamlessly into any home decor. Its robust build quality ensures durability, while thoughtfully placed controls provide easy access to essential functions.

In summary, the NAD S170iAV is a powerful and versatile audio-video receiver that combines cutting-edge technology with high-quality performance. With its advanced features, extensive connectivity options, and user-friendly design, the S170iAV stands out as an excellent choice for anyone looking to elevate their home entertainment experience. Whether for cinematic viewing or music enjoyment, the S170iAV is built to deliver exceptional audio quality and reliable operation.