Reviews Magnetic Resonance Spectroscopy

E-10 V.3 D2 - Sundown Audio 10" 500W RMS Dual 2-Ohm EV.3 Series Subwoofer

RMS Power = 500-watts | Xmax = 14mm one-way by 70% BL | Vented magnetic gap.
Vented pole piece with optimized geometry | Black Aluminum 2.5” voice coil former for superior heat dissipation | High Temperature 4-Layer copper voice coil wire.
Spring Loaded Terminals | Stitched-On “Mini-XL” Tinsel Leads to prevent fatigue and failure.
Specifications: DC Resistance (Re): 4.0 Ω | Resonance Frequency (Fs): 32.2 Hz | Equivalent Volume (Vas): 19.4 L | Electrical Q Factor (Qes): 0.38 | Mechanical Q Factor (Qms): 4.76 | Total Q Factor (Qts):0.35 | Force Factor (BL): 20.2 NA | Moving Mass (incl. Air Load) (Mms): 192.0 g | Suspension Compliance (Cms): 0.13 mm/N | Sensitivity: 84.2 dB 1w / 1m.
Box Recommendations: Sealed: 0.5 cu ft | Ported: 1.0 cu ft | Displacement: 0.11 ft^3 | Cutout Diameter: 8-7/8" | Outside Diameter: 10" | Depth: 5 5/8" | Recommended Tuning: 32hz | Recommended Port Area: 16 in^2.

Learn to sing in your upper range, master placement of your throat resonance, develop full-voice singing and learn how to keep your voice healthy.
This tutorial program is designed for both men and women by renowned vocalist/instructor Breck Alan and builds on the singing techniques learned in Heavy Rock to Metal beginner.
With this three-part learning system that includes DVD, Audio CD, and 24/7 online lesson support, you'll learn to sing in your upper range, master placement of your throat resonance, develop full-voice singing and learn how to keep your voice healthy.
Learn to develop key vocal techniques like direction and anchoring of resonance, reflex oriented breath support and Breck's famous warm-up routines.
Each Rock House video Includes a lesson tab booklet, iPod-ready video, and free lifetime membership to Rock House's online lesson support.

Fully automatic operation with 2 speeds: 33-1/3 rpm and 45 rpm.
Anti-resonance, die-cast aluminum platter.
Redesigned tonearm base and headshell for improved tracking and reduced resonance.
Integral Dual Moving Magnet phono cartridge with replaceable diamond stylus (ATN3600L).
High-fidelity audio with Bluetooth wireless technology.

Experience the high fidelity audio of vinyl.
Fully automatic belt drive turntable operation with 2 speeds: 33 1/3, 45 RPM.
Anti resonance, die cast aluminum platter.
Redesigned tone arm base and head shell for improved tracking and reduced resonance.
Ac adapter handles AC/DC conversion outside of the chassis, reducing noise in the signal chain..

Precision crossover network: the THX speaker Series feature carefully selected fourth order linkwitz-riley crossover network acoustic filters. This sophisticated crossover minimizes sonic frequency overlap, reduces distortion, and is an excellent choice to minimize off axis response errors near the crossover frequency..
Premium built cabinet: high density fiberboard. High quality binding posts. Magnetic grille. Each speaker cabinet is built with HDR, not MDF material. Hdf is better damped than MDF, resulting in a sonically Inert cabinet. Internal bracing has been strategically placed inside to limit unwanted cabinet resonance that could Color the sound. The center channel speaker is outfitted with high quality binding posts, and the bottom has a built-in pad to help isolate it from the surface It is placed on..
Woofer drivers: 2x 6.5" Long fiber pulp cones with fear optimized nitrile butadiene rubber (NBR) surround and aluminum shorting ring.
Midrange driver: 2" Silk dome midrange with neodymium magnet and aluminum shorting ring.
Tweeter driver: 1" Silk dome tweeter with neodymium magnet and copper shorting ring.

52% iron mixed with 48% nickel is the formula for Alloy-52, the material used in the Everly 9210 B-52 Rockers Alloy Light Guitar Strings.
This magnetically active alloy makes for an extremely durable, highly responsive electric guitar string, with awesome resonance characteristics.
It resists tarnish up to 3 times over its nickel-plated steel predecessor and delivers more sustain and overtones.

High-performance drivers and mounting system. Large magnets in an advanced magnetic circuit design. Dedicated power amps are perfectly matched to the woofer and tweeter. Enclosure is designed to kill unwanted resonances that can influence sound..
Room Control and High Trim response controls give you optimum response in any room. Noise Reduction Technology.Speaker port design can greatly influence the clarity of overall sound. Often a vortex at the either end of the port can generate air vibrations inside of the port, causing unwanted noise. By adopting a noise reduction technology that incorporates an analysis of a visual representation of the sound..
Controls and Connectivity:HS Series full-range models feature two response controls with settings that allow them to adapt to the surface acoustics of rooms of varying shape and size. ROOM CONTROL allows you to attenuate the unnatural, exaggerated low-end that can often occur when speakers are placed next to walls, while HIGH TRIM allows for more flexible control of high frequency response..
XLR and TRS phone jack inputs accept balanced or unbalanced signals. Speaker type: 2-way bi-amp powered studio monitor. ROOM CONTROL and HIGH TRIM response controls. 2-way bass-reflex bi-amplified nearfield studio moni....