MODIFICATIONS

Noise Improvement for Single Inputs:

The overall signal-to-noise ratio of the SE30 may be im- proved for single-input applications by disabling the two unused input channels. This automatically reduces the noise level of the mixing circuitry without changing the gain or other characteristics of the remaining input. It is recommended that Input 1 be used and Inputs 2 and 3 dis- abled to retain the Tone Oscillator and Aux. Line Input features associated with Input 1. To disable Inputs 2 and 3, follow the procedure below.

1.Remove AC line cord and turn off all power. Remove the top cover.

2.Locate resistors R12 and R13 (33K ohms), between In- put 2 and 3 controls and their associated Lo-cut Filter switches. Disconnect resistors R12 and R13 from switches S2 and S3. Bend removed lead of resistor away from all terminals, wires, and chassis.

3.Replace top cover. During operation, set Input 2 and Input 3 controls to zero.

Response Rate Knob Removal:

To prevent inadvertent misadjustment of the Response Rate Control for applications in which a fixed setting may be established, the knob may be removed.

1.Experimentally determine the proper Response Rate Control setting for the intended application and rotate the knob to this position.

2.Remove AC line cord and turn off all power. Remove the top cover.

3. Note that the plastic Response Rate knob (K5) extends through the front panel, over the shaft of potentiom- eter R5. Insert the blade of a standard screwdriver between the rear of the knob and the shaft bushing of R5, and twist the screwdriver ¼ turn. This will slide the knob forward on the shaft partially out of the front panel.

4.Grasp the knob and pull it completely out of the front panel.

5.Push the black plastic plug supplied with the SE30 into the hole thus exposed.

6.To permit subsequent control adjustment or replace- ment of the knob, the plug may be released by remov- ing the top cover and using long-nose pliers to pinch together the locking devices on either side of the plug body.

Telephone Line Surge Protection:

When using the SE30 to feed a telephone line subject to lightning induced voltage surges, the following part (commercially available) can be installed across the Line Output terminals to provide additional protection for out- put circuit components:

Metal Oxide Varistor

General Electric Co.

Type No. V22ZA1

29

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Shure SE30-2 service manual Modifications
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SE30, SE30-2 specifications

The Shure SE30-2 and SE30 in-ear monitors are premier audio devices designed for both audiophiles and professionals alike. Renowned for their exceptional sound quality and comfort, these models are essential for anyone serious about their audio experience.

One of the key features of the Shure SE30-2 and SE30 is their detailed sound reproduction. With a frequency response that spans from low bass to crisp highs, these monitors are engineered to deliver a balanced audio experience. The dual-driver configuration in the SE30-2 ensures that low, mid, and high frequencies are rendered with precision, allowing users to appreciate the nuances in their favorite tracks or during live performances.

Comfort is paramount in the design of the SE30 series. These in-ear monitors come with an ergonomic design and a variety of ear tip options, including foam and silicone tips, which help achieve a secure fit. This not only enhances comfort during extended use but also aids in passive noise isolation, allowing users to focus on their music without external distractions.

Shure has integrated innovative technologies into the SE30-2 and SE30 models, including a detachable cable system. This feature allows for easy replacement of worn cables and is particularly useful during live performances, where durability is crucial. The cables are also robust, with reinforced connectors that enhance longevity.

Moreover, the SE30 series is designed with versatility in mind. Whether you are using them in a studio setting, during live performances, or for casual listening, these monitors adapt to deliver optimal performance. The lightweight construction ensures that they are portable and suitable for on-the-go use, making them perfect companions for traveling musicians and audiophiles alike.

In terms of aesthetics, the Shure SE30-2 and SE30 sport a sleek, professional look, available in several color options. This not only appeals to the stylish user but also complements their refinement in sound.

In summary, the Shure SE30-2 and SE30 in-ear monitors present a compelling choice for those who seek high-fidelity audio in a comfortable and durable form factor. With attention to sound quality, comfort, user-friendly designs, and robust construction, these monitors stand out in a market filled with various audio options. Whether for professional use or personal enjoyment, the Shure SE30 series is sure to elevate any listening experience.
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