Reviews The Low Frequency

KRK 5 Classic Studio Monitor

High/Low-frequency controls contour your sound for environment, preference, and music style, and the custom bi-amped, class A/B amp offers large headroom and low distortion.
Soft-dome tweeter with optimized waveguide provides smooth, pristine and articulate highs up to 35kHz.
The low-resonance enclosure minimizes distortion and color, and the lightweight, glass-aramid composite woofer delivers clear midrange and tight bass.
Flat Low Frequency Adjustment adding versatility and improved accuracy for mixes that translate in different environments.
Superior low-end extension with optional setting of plus-2dB KRK Bass Boost acclaimed by music creators worldwide.

High frequency transducer: XStat CLS electrostatic transducer.
Low frequency driver : 8" high excursion, high-rigidity doped fiber cone with extended throw drive assembly, non-resonance asymmetrical chamber format.
MicroPerf panel is housed within a radical aluminum and composite AirFrame.
Proprietary Vojtko topology filter utilizing custom air core coil and low DCR steel laminate inductors, polyester film capacitors in series, and low DF electrolytic capacitors in parallel.
Recommended amplifier power: 20-300 watts per channel, Crossover frequency: 500 Hz.
Convenient push-style speaker terminals for bare wires, pins, or bananas, Sturdy, 1/4-20 ETC spikes.
Frequency response: 42 - 22,000 Hz ±3 dB, Dispersion: 30-degrees x 34" line source, Sensitivity: 91 dB/2.83 volts/meter.
Nominal Impedance: 6 Ohms, 1.6 @ 20 kHz, compatible with 4, 6, or 8 ohm rated amplifiers.
Weight: 35.5 lbs. each, Dimensions: 52.1" high, 9" wide, 16.3" deep.

High frequency transducer: XStat CLS electrostatic transducer.
Low frequency driver : 8" high excursion, high-rigidity doped fiber cone with extended throw drive assembly, non-resonance asymmetrical chamber format.
MicroPerf panel is housed within a radical aluminum and composite AirFrame.
129 square inches of sound radiating surface on both the front and back.
Proprietary Vojtko topology filter utilizing custom air core coil and low DCR steel laminate inductors, polyester film capacitors in series, and low DF electrolytic capacitors in parallel.
Frequency response: 42 - 22,000 Hz ±3 dB, Sensitivity: 91 dB/2.83 volts/meter.
Recommended amplifier power: 20-300 watts per channel.
Dimensions: 52.1" high, 9" wide, 16.3" deep.

Stable Schumann frequency Generator:7.83HZ Schumann Wave Ultra-low Frequency Pulse Generator,It emits the ultra low frequency which provides a stable "ambience" within which you listen to your stereo with more perceived clarity.
Schumann Resonances&Earth's frequency:The Earth behaves like a gigantic electric circuit. Its electromagnetic field surrounds and protects all living things with a natural frequency pulsation of 7.83 hertz on average — the so-called “Schumann resonance,” named after physicist Dr. Winfried Otto Schumann.
How does the Schumann resonance affect US? Being in the Schumann wave ambience can reduce anxiety, insomnia, and reduce the negative impact of EMF on the body..
quiet Schumann frequency Generator：There is no noise at work, you will not even notice its “existence”.
With AC power adapter: it can be used in sleep and work when plugged in. In order to achieve better results, it is recommended to stay away from electromagnetic radiation equipment when using.

Professional Acoustic Design. Pick up one of high-pitched pronunciation driver+1 low frequency driver open-train double dynamic structure.Professional Acoustic Design. Pick up one of high-pitched pronunciation driver+1 low frequency driver open-train double dynamic structure..
Amazing Sound Quality. 99% of the current headsets can not meet the standard of 20-45 KHZ frequency width. It’s totally beyond your imagination. Independent bass frequency dynamic driver enhances general music administrative levels and lets every beat feel a strong bass..
Ergonomic and chic design. Transparent cavity is made of PC resin materials. Internal components can be clearly seen..

This patented JBL slip stream port design works in concert with the LSR310S low frequency driver for deep, dynamic bass response at all playback levels..
A JBL first, the XLF setting activates a specially-engineered tuning that emulates the ample bass tuning used in today's dance clubs..
The custom-designed driver in the LSR310S delivers deep low frequency response into the 20 Hz region, and 113 dB peak output, for long periods at full rated power with no risk of failure.
With balanced XLR and 1/4-inch inputs and XLR outputs you can add the LSR310S to any Studio monitor system to extend its low frequency performance.
The -10Dbv/+4 dB sensitivity switch ensures compatibility with a broad range of signal sources, allowing you to connect the LSR310S to high-output professional equipment without any danger of input overload. Maximum peak input level: +20. 3 dB.

High Frequency Transducer: 1.25" × 2.4" (3.2cm × 6.1cm) Folded Motion XT Transducer with 4.5" x 2.75" (11.4cm × 7cm) diaphragm.
Mid Frequency Transducer: 6.5” (16.5cm) aluminum cone with cast polymer basket. Sealed chamber format. Rigid structured dust cap to reduce cone break-up modes..
Low Frequency Transducer: Two 8” (20.3cm) aluminum cone with cast aluminum basket. Non-resonant asymmetrical chamber format. Rigid structured dust cap to reduce cone break-up modes..
Components: Custom air core coil and low DCR steel laminate inductors. Polypropylene film capacitors in series and low DF electrolytic capacitors in parallel. Tweeter thermal/current protection..
Inputs: Custom 5-way bi-wire tool-less binding posts.
Frequency Response: 35–25,000 Hz ±3dB, Recommended Amplifier Power: 20-400 watts per channel.
Horizontal Dispersion: 80°, Vertical Dispersion: 30°, Sensitivity: 94 dB/2.83 volts/meter.
Impedance: 4 Ohms Compatible with 4, 6, or 8 Ohm rated amplifiers..
Weight: 66 lbs., Dimensions: 48" x 11.4" x 14.4".

DUAL 21 BAND EQUALIZER With Individual LED Indicators..
INPUT/OUTPUT: RCA (4 audio sources), MP3 (1/8'') / RCA (record, main) - Frequency Response: 20Hz-20kHz.
EQUALIZATION POINTS: 32Hz, 63Hz, 100Hz+, 1kHz, 2kHz, 4kHz, 6kHz, 8kHz, 10kHz+ - Adjustment Range: ±12dB.
FLUORESCENT SPECTRUM DISPLAY - Direct / Equalizer function allows option of unfiltered pass-through.
BASS BOOSTER increases the low frequency levels - Loudness Booster increases the low and high frequency levels - Removable rack-mount brackets Included.

High Frequency Driver: Precision balanced armature delivers clear crisp high tonal range.
Low Frequency Driver: 13.5mm Diaphragm delivers deep distortion free low tonal range.
Audio Filters: Shapes the sound for maximum detail.
Passive Crossover: Directs music to high and low range speakers for precise audio reproduction.
Professional Construction: Small form factor lightweight durable design made for active lifestyles.