SYMPTOM

9.Constant level whining noise (most noise with source unit volume at minimum)

CAUTION:

10.Radiated noise: crackling noise on FM which is not present when playing tape or CD (noise varying slightly with accelerator but is present at all times)

PROBABLE CAUSE

Check for a ground loop in the system. Turn the system off and one by one change the ground connections (by changing to a different contact point,scraping the level constant irrespective of metal clean of all paint, rust or grease). Turn the system on and check for whining noise after each ground change.

Do not disconnect the Power Amplifier's ground when the system is on. This could damage the amplifier.

Check for defective signal cables. Disconnect signal cables at the amplifier and listen carefully for noise. If the noise dis- appears, run a test pair of signal cables. If there is no unde- sirable whining noise, reconnect to the amplifier with the new pair of signal cables. Check battery ground connection to the vehicle chassis to make sure it is tight and clean. Check battery negative terminal connection to make sure it is tight and clean.

Check if the noise is actually radiated noise: Tune a portable radio to the same FM station. Move the portable radio close to the vehicle engine. If crackling noise comes from the portable radio, then the noise you have in your vehicle audio system is radiated noise.Check with a VOM (volt meter) to make sure the antenna is really grounded to the vehicle chassis.

To ensure a true ground, break the plastic covering of the antenna lead and solder a piece of heavy wire (minimum

14 gauge) to the braided shield. Ground the other end of the wire at the same point as the radio ground.

Check spark plug wires. They should be suppression-type wire and less than 2 years old. Otherwise, replace them with good quality suppression cables.

Make sure engine block is grounded to the vehicle chassis at a bare metal spot (scraped clean of paint, rust and grease).

Make sure hood is also grounded. If not, use a ground strap (which is available from any auto parts store) to ground the hood to the vehicle chassis.

COUSTIC.COM

SPECIFICATIONS:

161SE Amplifier

 

 

 

Rated Power @ 14.4 V (0.1 % THD):

4

Ohm Stereo

2 x 40 Watts

Rated Power @ 14.4 V (0.1 % THD):

2

Ohm Stereo

2 x 80 Watts

Rated Power @ 14.4 V (0.2 % THD):

4

Ohm Mono

1 x 160 Watts

Frequency Response:

 

 

20 – 20,000 Hz ± 0.5 dB

Input Sensitivity:

 

 

0.1 – 5 V

S/N Ratio @ rated power:

 

 

100dB

High-Pass Filter Crossover Frequency:

 

 

80/120 Hz (18dB/Oct.)

Low-Pass Filter Crossover Frequency:

 

 

80/120 Hz (18dB/Oct.)

Dimensions:

 

 

11" W X 23⁄8" X 71⁄4" L

 

 

 

(280 X 60 X 185 mm)

Due to continual product improvement, all specifications subject to change without notice.

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Coustic 161SE owner manual Specifications, Symptom
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161SE specifications

The Coustic 161SE is a cutting-edge audio amplifier designed for audiophiles and music enthusiasts seeking premium sound quality. With its sleek design and robust features, this amplifier encapsulates the essence of performance and modern technology.

One of the standout features of the Coustic 161SE is its power output. It delivers an impressive 1,600 watts of peak power, promising a dynamic audio experience. This allows users to drive even the most demanding speakers without sacrificing audio clarity. The amplifier is built on a Class AB design, which is known for producing less distortion and a more natural sound, making it suitable for both high and low-frequency audio playback.

The Coustic 161SE is also equipped with advanced signal processing technologies to enhance audio playback. It incorporates a low-noise design that minimizes interference and maximizes sound fidelity. With a frequency response range of 10Hz to 40kHz, the amplifier reproduces a wide spectrum of audio frequencies, ensuring that every note is captured with precision.

Moreover, the product features adjustable crossover settings, allowing users to tailor the sound to their personal preferences. This versatility makes it an ideal choice for various audio setups, whether used in a home theater system, a car audio system, or for professional audio installations.

User-friendly controls come standard with the Coustic 161SE. The front panel features simple adjustments for gain, bass boost, and high-pass/low-pass filters, providing intuitive access to key audio settings. This ensures that users can quickly dial in their desired sound without fuss.

Another significant aspect of the Coustic 161SE is its robust build quality. The amplifier is housed in a durable chassis designed to withstand prolonged use, while its heat dissipation technology prevents overheating during extended play sessions.

In addition to the technical specifications, the Coustic 161SE exhibits a modern aesthetic, featuring a glossy finish and backlit controls. This design not only enhances its appearance but also ensures visibility in low-light conditions.

In conclusion, the Coustic 161SE amplifier stands out in the competitive audio market with its powerful performance, versatile sound tuning options, and elegant design. Its advanced technology and user-friendly features make it an exceptional choice for anyone looking to elevate their audio experience. Whether for casual listening or professional applications, the Coustic 161SE promises to deliver immersive sound like never before.
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