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Studio Monitors » BLOW4D Studio Monitor

Uncolored Frequency Reproduction. Digital and Analog Input.
Adjustments for Room Acoustics. 55-Watts of Mind Blowing Audio.

BLOW4D is a a 55-Watt, powered near-field studio monitor speaker. BLOW4D features a two-way, bi-amplifier design to achieve high quality sound. Frequency response is broadened downward by a bass reflex system, and broadened upward by a natural silk dome tweeter for delicate signal reproduction. Enclosure design contributes to the broad frequency response.

BLOW4D is equipped with a DA-912 digital interface module, enabling BLOW4D to be connected to various digital inputs such as AEU/EBU(XLR), S/PDIF(RCA) and an RCA thru connector. The D/A converter in DA-912 supports up to an amazing 24-bit/192kHz sample format with 123dB dynamic range.

From the commercial studio to the home studio, BLOW4D is one of the premier solutions for near field studio monitoring. Use the controls on the back panel of the BLOW4D to your control room acoustics. With output this accurate, you'll hear what you've been missing.

Features

Units per Package

One pair (two speakers)

BLOW4

2-way bass-reflex bi-amplified 4 inch near field studio monitor
Flat frequency response (±1.5 dB, 73 Hz to 20 kHz) and wide pass-band
frequency (62Hz ~ 22kHz)
55 watt (25 watt HF and 30 watt LF) power amplifiers with servo-loop and
perfect protections.
0.75" natural silk dome High frequency transducer
4" Polymer coated paper fiber cone low frequency transducer
Full magnetic shielded enclosure and independent amplifier room
XLR and 1/4"TRS phone jack balanced/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
DA-912 (included in BLOW4D)
XLR for AES/EBU (IEC60958) and RCA for S/PDIF coaxial digital inputs
RCA thru out port for stereo connection
IEC60958 EIAJ CP1201 compatible 24-bit digital input with up to 192kHz
sample-rate
High-end 24-bit/192kHz D/A converter with 123dB dynamic range
XLR/RCA source and Left/Right channel selection switch

DA-912 Digital Interface Module

XLR for AES/EBU (IEC60958) and RCA for S/PDIF coaxial digital inputs
RCA thru out port for stereo connection
IEC60958 EIAJ CP1201 compatible 24-bit digital input with up to 192kHz
sample-rate
High-end 24-bit/192kHz D/A converter with 123dB dynamic
XLR/RCA source and Left/Right channel selection switch

Images

Blow 4 Studio Monitors

Blow4

Specifications

System / Enclosure

Two-way, bi-amplified reference monitor (bass-reflex type)
Free field frequency Response: 73Hz ~ 20kHz (+/- 1.5 dB)
Free field cutoff response 62Hz ~ 22kHz (+/- 3.0dB)
Measured Maximum Continuous: 101dB SPL / 1m
Harmonic distortion at 90 dB SPL @ 1 m on axis: 0.5% under
Low frequency driver:
- Diaphragm Type: Polymer coated paper fiber cone type
- Diameter: 4" (101 mm)
- Voice Coil: 1.0" (25 mm)
- Magnet Type: Ferrite magnet with magnetically shielded
- Impedance: 6 ohms
High Frequency Driver
- Diaphragm Type: Natural Silk Dome with Waveguide.
- Diameter: 0.75" (19mm) diaphragm
- Magnet Type: Ferrite magnet with 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

DA-912 Digital Interface Module

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 interface : Input source selector (AES/EBU/Coaxial), Channel selection (Left/Right),
Status indicator LED

Resources

The following resources are available from the Infrasonic website.

Auzentech is a trademark of Auzentech, Inc. INFRASONIC, BLOW5, BLOW5D, BLOW4, BLOW4D, INFRASONIC DeuX, INFRASONIC AMON, INFRASONIC Quartet, and JamMate, and SIMS Audio are trademarks of SIMS Corporation. All other trademarks remain the property of their respective owners.