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BI-AMPLIFIED 

STUDIO MONITOR 

INFRASONIC BLOW SERIES 

 

Premium Digital Module BLOW4D 

User’s Manual 

English 

Summary of Contents for BLOW4

Page 1: ...BI AMPLIFIED STUDIO MONITOR INFRASONIC BLOW SERIES Premium Digital Module BLOW4D User s Manual English ...

Page 2: ...g amplifiers that produce heat 8 The device should be installed so that its location or position does not interfere with its proper ventilation For example it should not be situated on a bed sofa rug or similar surface that may block the ventilation openings or placed in a built in installation such as a bookcase or cabinet that may impede the flow of air through its ventilation openings and aroun...

Page 3: ...ure The analog input connector provides for an XLR balanced input and a TRS 1 4 phone jack balanced or unbalanced input BLOW4 also has its optional DA 912 digital input connector This connection provides the AES EBU XLR input S PDIF RCA input and RCA thru output It supports a 192 kHz sample rate at a 24 bit resolution as well as a high end D A converter with 123 dB dynamic range You can also adapt...

Page 4: ...ced unbalanced inputs EASC Enhanced Acoustic System Compensation Technology Input sensitivity control High frequency 3 step tilt controls switch Acoustic space control switch Bass cut off frequency control switch 4th order active crossover network Front Illuminant Logo lamp and protection indicator High strength cabinet constructed MDF composite with radius edges 1 2 DA 912 INCLUDED IN BLOW4D XLR ...

Page 5: ... dome High Frequency Transducer 2 4 Polymer coated paper fiber cone low frequency Transducer 3 Front Illuminant Logo Lamp and Protection Indicator The white Lamp means that the unit is on normal operation mode The red Indicator stands for the protection mode 4 Slotted Bass reflex Port ...

Page 6: ...ncy for a subwoofer system There are 3 selections Flat 80Hz and 100Hz 1 Power On Off Switch and AC Inlet Use to power on or off the unit 2 Analog Inputs XLR input and 1 4 TRS Balanced input Connector Impedance 20kΩ BLOW4 accepts balanced and unbalanced connections 3 Input Source Select Switch You can select digital or analog input source 4 Input Sensitivity Control Use the Sensitivity Control to s...

Page 7: ...te DO NOT try to use Coaxial input for analog audio signals 3 Source Select Control Switch You can select the type of input between AES EBU XLR and S PDIF Coaxial 4 Digital Thru out Connector Connect from the one speaker unit to the other through a RCA cable 5 Channel Select Control Switch You can select the playback channel according to the position of each unit in stereo 6 Status indicator LED 1...

Page 8: ... Be careful to handle it Positioning monitor speakers correctly in the control room is very important to their performance In order to monitor with your speaker units at their maximum capability appropriate listening environment and correct placement are required Please see our suggestions Two speaker units and the listener should align to form a regular triangle Refer to the following diagram The...

Page 9: ... 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 BLOW4 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 Fo...

Page 10: ...l in 3 steps of 2dB below 500 Hz The following graph shows how Room Compensation Control affects the response of the speakers Example of the room acoustics Cut off Low Frequency Control You can use this switch to adjust the bass roll off in a multi channel surround system or to balance your room resonance A subwoofer makes a deep low frequency sound You can mix how a sub and BLOW4 harmonize using ...

Page 11: ...the rear panel Turn on the power to the BLOW4 The unit is equipped with a protection circuit an interval of a few seconds is required before the unit will operate normally 4 2 ANALOG AUDIO INPUT Connect the male side of an XLR balanced cable to the XLR input or TRS balanced or unbalanced cable to the TRS input of the rear panel Input Select Switch should be set to analog input Refer to the followi...

Page 12: ...nput of the rear panel Connect THRU to the RCA coaxial input of the other unit with RCA cable Select the channel of each unit s panel Input Select Switch should be selected on digital input Select the source of digital input according to the type of digital input Refer to the following diagram Another unit Current unit Connecting of Digital AES EBU and S PDIF cable ...

Page 13: ...magnetically shielded Impedance 8 ohms Low Frequency Vent Type Front ported Slotted aperture Internal cabinet volume 3 7 liters Enclosure Construction 13mm Vinyl laminated M D F Dimensions 154 mmW x 254 mmH x 217 mmD Weight 6 25 kg Amplifier Crossover Power amplifier topology Class A B Power amplifier with Servo loop DC Over load and Over Temperature protection Supply monitoring protection with Mu...

Page 14: ...IEC power INLET 5 2 DA 912 Connector XLR input AES EBU IEC60958 RCA input S PDIF EIAJ CP1201 RCA thru output Sample Rates 192kHz 176 4kHz 96k Hz 88 2 kHz 48 kHz 44 1 kHz 32 kHz Tolerance 3 Word Length 16 24 Bit Digital Analog Converter 24 bit 192kHz Multi bit delta sigma with 8xdigital filter Total Harmonic distortion Noise 0 0005 1kHz 3dBFS Dynamic range 123dB A weighted 1kHz 60dBFS User interfac...

Page 15: ...and un repaired A breach of this warranty shall not include any other damages SIMS Corp will not be liable for consequential special indirect or similar damages or claims including loss of profit or any other commercial damage even if its agents have been advised of the possibility of such damages and in no event will SIMS Corp accept liability for any damages to the purchaser or any other persona...

Page 16: ...BLOW4 BLOW4D User s Manual 16 ...

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