Best Balanced Filters

Rockville REQ215 Dual 15 Band 1/3 Octave Graphic Equalizer with Sub-Output

The Rockville REQ215 is a Dual Channel 30 Band (15 bands per channel) rack mountable EQ. Dual channel (15 bands per channel). Switchable 12 Band or 6dB boost/cut range..
80Hz 24dB low cut filter. 2/3 octave filter sets. 25 Hz to 16 kHz effective equalization range. Constant Q filters. Output level LEDs (-12 to +17 dB). Low cut filter switch with status LED..
XLR inputs and outputs for balanced operation. Bypass switch with status LED. Balanced XLR input/output. Subwoofer out. Subwoofer X-Over Freq ( 30Hz - 200Hz ) selecting..
Connectors : XLR balanced inputs and outputs. Ground lift switch. Frequency Centers : 31.5 Hz, 40 Hz, 63 Hz, 100 Hz, 160 Hz, 250 Hz, 400 Hz, 500Hz, 630 Hz, 800 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 16 kHz..
Input Impedance : 20k ohms. Output Impedance : 1.5k ohms. Maximum Output Level : 11 VAC. Level Control : +/- 12 dB. Signal to Noise : 90 dB. Distortion : 0.03%. Power : 120 Volt..

LONG LASTING FILTRATION: Easily attach this biological filter to a fountain or pond pump for up to 18 months of filtration.
EASY TO CLEAN: Residue can be washed off by simply running water over the foam filters.
IDEAL FOR SMALL TO MEDIUM SIZED PONDS: The kit is best suited filtering ponds up to 750 gallons and approximately 18" deep.
ENVIRONMENTALLY FRIENDLY: The mechanical and biological filtration encourages the growth of beneficial bacteria for a naturally balanced pond.
COMPATIBILITY: This filter is specifically designed for use with the Beckett Model FR400. INCLUDES: 20 bio-balls, 5 foam filters, 5 strainers, 1 bio-box. Pump NOT included.

A truly powerful high-resolution music player, bit-to-bit playback up to 32bit/384kHz and Native DSD (DSD256) and a quad-core CPU for outstanding response and performance.
Multiple Audio Output Modes - Audio outputs: 2.5mm balanced, 3.5mm headphone & for the first time, 4.4mm balanced port.
Dual ESS ES9068AS DACs, LED Volume Wheel, MQA & MQA-CD playback support, DAC Filters,.
Up to 14.5 hours of continuous playback with 64GB of internal storage and 1 microSD card slot.
WiFi and Bluetooth 5.0 (LDAC, aptX HD) for wireless streaming including Open App Streaming for online/offline on select apps such as Tidal, Qobuz, Spotify, Amazon Music, etc..

A truly powerful high-resolution music player, bit-to-bit playback up to 32bit/384kHz and Native DSD (DSD256) and a quad-core CPU for outstanding response and performance.
Multiple Audio Output Modes - Audio outputs: 2.5mm balanced, 3.5mm headphone & for the first time, 4.4mm balanced port.
Dual ESS ES9068AS DACs, LED Volume Wheel, MQA & MQA-CD playback support, DAC Filters,.
Up to 14.5 hours of continuous playback with 64GB of internal storage and 1 microSD card slot.
WiFi and Bluetooth 5.0 (LDAC, aptX HD) for wireless streaming including Open App Streaming for online/offline on select apps such as Tidal, Qobuz, Spotify, Amazon Music, etc..

...products the perfect filter aid for the swimming pool and spa industry..
Celatom diatomaceous earth (DE) for swimming pools provides the ultimate in water clarification for a pool or spa that truly sparkles. DE is the most efficient dirt removing filter aid available, removing particles down to 2 microns. A properly balanced pool, using DE filter aid, gives you the clarity and quality you're looking for, reducing the use of chemicals and disinfectants..
Provides a sparkling pool day and night. Filters out particles associated with recreational water illness. Enhances filter productivity reducing chlorine & shock use.
Apply approximately 1 pound diatomaceous earth per 10 square feet. Example a 60 square foot pool would require 6 lbs diatomaceous earth. Measure the required diatomaceous earth amount, mix in a pail of water to create a slurry, then feed it into the filter via addition to the pool skimmer. Diatomaceous earth filters should be cleaned at least once per year..

Package Includes: (1) JBI EON208P Portable PA System / Pair 8" Speakers+Powered 8 Chan Mixer/Bluetooth. (1) RockvilIe ROCKBAR 40" 400w Soundbar....
JBI EON208P Portable PA System with Pair 8" Speakers and Powered 8-Chanel Mixer with Bluetooth. System Type: (2) Portable 2-Way Full-Range....
Channels: 1-4: XLR/1/4" Jack Combo Connectors 5-6: One pair of 1/4" balanced TRS jacks (stereo), and one pair of RCA jacks (stereo) 7-8: One pair of....
Phantom Power: CH1 and CH2 have phantom power control and share the same selection switch Hi-Z Selection CH3 has a Hi-Z selection switch used for....
Subwoofer Out: 1/4" balanced TRS jack. Treble/Bass EQ: Per-channel high- and low-shelf filters.
+/- 12dB cut and boost. System Limiter: On-board DSP....

Professional quality performance - incorporates road-proven QSC designs.
High-current toroidal transformers for greater 2 ohm power and low noise.
Independent user-defeat able clip limiters reduce distortion.
Selectable low-frequency filters (30 Hz or 50 Hz) protect speakers and increase headroom.
Balanced 1/4 inch TRS, XLR, and barrier strip inputs.

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.