Infrasonic BLOW5D user manual Adapting the BLOW5 to the Room Acoustics, Input Sensitivity Control

3.2.ADAPTING THE BLOW5 TO THE ROOM ACOUSTICS

Generally there are many factors affecting the monitoring of sound. For example, room size, distance from the wall, size of studio space, the reflection of the room, and the distance between speakers and user. In a multi-channel monitoring system like 5.1 surround or THX, a subwoofer is included in the system to produce low frequency effect. So it may be necessary to reduce the low frequency level of the monitoring speakers. Because of these various situations, the BLOW5 is able to be optimized to make the best of your monitoring environment.

IMPORTANT NOTES

DO NOT place any obstacles that may block the flow of air. Air is the medium of sound. Refrain from using reflective surfaces near the speakers. IE - glass, mirror or metal. PLACE THOSE MATERIALS AWAY FROM THE SONIC PATH OF THE SPEAKERS.

Input Sensitivity Control

There are many types of devices to connect to the BLOW5. The unit can be set to correspond with the varying impedances of third party devices. You can set the sensitivity to match with various kinds of input sources. A visible scale/dB mark on the sensitivity control assists users in the correct setting.

Follow diagram shows input level scales. (Sound pressure level of output is 100dB.)

Semi-pro (-10dBv)

Devices

Consumer or Mobile

Devices

Professional (+4dBu)

Devices

High Frequency Tilt Control

This switch adapts the BLOW5’s frequency response to the dampening characteristics of the control room. It tailors the overall high-frequency response by beginning at 1.0 kHz, ±2 dB at about 10 kHz. You can use this switch to adjust brightness of your speakers. It depends on room conditions and the distance of speakers from the user. The following graph shows how the treble tilt affects the response of speakers.

BLOW5/BLOW5D User’s Manual 9