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B006JC5HHE Price: $489 Score: 1000.000 Category: Electronics Rating: 4.2 Votes: 9 Find similar products Bellari Moving Coil Matching Transformer (MT502). Use MC Cartridges with MM Phono Sections This American-Made Step-Up Transformer Rivals the Performance of $1000 Units The Bellari MT502 allows low-output moving-coil cartridges to be used with any standard moving magnet phono preamp Completely passive the MT502 uses high-quality hand-wound transformers to convert the low output of a MC cartridge to a higher voltage more suitable for a MM phono stage Nestled beneath 24k Gold plated covers these transformers are extremely quiet and stable allowing maximum signal transfer with minimum loss The MT502 provides up to 30dB of gain to a MC cartridge allowing even the lowest output MC cartridges to be used! The MT502 has selectable impedance settings (50/100 Ohms) and a ground lift switch Mates perfectly with other Bellari phono preamps but works great with any MM phono section Use an MT502 to upgrade the capabilities of built-in MM phono sections such as those included in receivers integrated amps and preamps! All Bellari products are manufactured in the USA.	B0849KVSF3 Price: $79.99 Score: 5.952 Category: Electronics Rating: 4.1 Votes: 43 Find similar products ART Precision Phono Preamp. ART is proud to introduce the Precision Phono Preamp for those seeking to connect their turntable to PA or stereo in one quick and easy step. This standalone phono preamp interfaces both types of turntable cartridges Moving Coil (MC) and Moving Magnet (MM) to a wide variety of audio systems. The Precision Phono Preamp’s extraordinarily low noise amplifier allows connection to MC cartridges without picking up noise or distortion that transformers can exhibit. The audio is kept pristine with a low-cut filter to remove rumble and low frequency feedback, commonly undesirable for DJ’s and home use. Analog inputs on the ART Precision Phono Pre amp are switchable between Moving Magnet and Moving Coil. The unit changes both the gain and the cartridge loading to suit the selected cartridge. The front gain trim control with the signal present/clip LED allows the user to optimize the output for a wide range of cartridges.
B074XNDT35 Price: $8.99 Score: 5.848 Category: Electronics Rating: 3.1 Votes: 23 Find similar products KNACRO DC 10V-24V Low-Pass Filter NE5532 Bass Tone Subwoofer Pre-Amplifier Preamp Board. Power supply voltage: DC12V-24V DC single power supply. Frequency range: 22Hz-300Hz. Audio input: mono or two-channel. Audio output: monaural. PCB Size: 78x32mm, thickness: 1.6mm. PCB Materials: FR-4 ultra-hard glass plate. Finished plate net weight: 30g. Plate mounting holes center to center spacing: 70x24mm, hole diameter: 3.2mm. Potentiometer shaft center to center spacing: 32.5mm. Special reminder: This board is a board bass preamp, directly connected to the speaker will not say anything, must be connected to the subsequent stage amplifier board made of pure active subwoofer to speak, pure stage power amplifier board selected according to individual needs of the degree of shock, The greater the power of pure power amp bass more shocking. The so-called low-pass filter plate is to filter the human voice more than treble part, retain the low frequency part is amplified to improve the bass reproduction efforts will not hear the human voice and high-frequency sound when playing the instrument. The buyer must understand this knowledge, in order to avoid the only, do not know how to use. Most of the market before the subwoofer preamp board are basically dual power, the majority of DIY enthusiasts, is not very convenient to use, after all, a single power supply is relatively easy to find, the premise of guaranteeing effective, we have introduced a single-supply subwoofer home board, you can share a stage with the power amplifier boards, DIY is very convenient. Package included: 1 x Low-pass Filter NE5532 (with 2 rotary potentiometer cap).	B01MV5QTLJ Price: $32.15 Score: 5.747 Category: Electronics Rating: 4.5 Votes: 58 Find similar products Dayton Audio DAEX30HESF-4 High Efficiency Steered Flux Exciter with Shielding 30mm 40W 4 Ohm. Quick Overview The DAEX30HESF-4 30 mm steered high flux exciter is one of the most powerful in Dayton Audios line of exciters capable of handling up to 40 watts. A pre-attached 3M VHB adhesive ring combines with four screw-down mounting tabs for maximum energy transfer. Product Highlights High output exciter design handles up to 40 watts RMS Specially designed neodymium motor and proprietary voice coil 3M™ VHB™ adhesive ring with four mounting holes Low inductance (only 0.3 mH) motor for extended response Product Manuals / Spec Sheets / Downloads Dayton Audio DAEX30HESF-4 Specification Sheet AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis Product Description Dayton Audios DAEX30HESF-4 steered high flux exciter is one of our most powerful. It has a specially designed neodymium motor system that imparts strong forces on even the most rigid surface for maximum output. For use with medium sized amplifiers, this steered high flux exciter incorporates a 4 ohm voice coil to extract maximum power. A wide frequency response is permitted due to this exciters low inductance of only 0.3 mH. Four threaded screw holes are integrated into the exciters shell and combine with a 3M VHB (Very High Bond) adhesive, permitting this exciter to be securely coupled to a wide range of materials, even upside-down mounting and attaching to moving objects. Two solder tabs offer quick, permanent wire attachment. Note: An exciters frequency response and sensitivity are completely dependent on the exciters designated surface. Thinner, smaller materials will tend to be louder and create a mid/tweeter response. Thicker, larger materials (with multiple exciters) will be slightly quieter but result in a more full-range sound. To understand more about exciter technology, here is a link to the Exciters Buyers Guide . Product Details Speaker Series Exciters Model Number DAEX30HESF-4 List Price $29.99 Color Silver Unit of Measure Each UPC 848791001574 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 0.4 Speaker Type Exciter Power Handling (RMS) 40 watts Power Handling (max) -- Continuous Program Power -- Impedance 4 ohms Sensitivity -- Frequency Response -- Voice Coil Diameter 30 mm Magnet Weight -- DC Resistance (Re) 3.8 ohms Voice Coil Inductance (Le) 0.31 mH Resonant Frequency (Fs) 300 Hz Mechanical Q (Qms) -- Electromagnetic Q (Qes) -- Total Q (Qts) -- Diaphragm Mass Inc. Airload (Mms) -- Moving Mass Of Diaphragm (Mmd) -- Mechanical Compliance of Suspension (Cms) -- Surface Area Of Cone (Sd) -- Volume of Displacement (Vd) -- BL Product (BL) -- Compliance Equivalent Volume (Vas) -- Maximum Linear Excursion (Xmax) -- Drivers Mechanical Losses (Rms) -- Entry / Exit Diameter -- Surround Material -- Voice Coil Wire Material -- Voice Coil Former -- Basket/Frame Material -- Magnet Material -- Overall Outside Diameter 2.25 dia. (2.75 across mounting tabs) 1.25 adhesive tab dia. Overall Depth 1.125 H Baffle Cutout Diameter -- Mounting Hole Diameter -- Bolt Circle Diameter -- Product Weight --.
B000CCN15C Price: $220 Score: 5.682 Category: Electronics Rating: 4.3 Votes: 80 Find similar products Behringer SUPER-X PRO CX3400 High-Precision Stereo 2-Way/3-Way/Mono 4-Way Crossover with Limiters, Adjustable Time Delays and CD Horn Correction. BEHRINGER SUPER-X PRO CX3400 High-Precision Stereo 2-Way/3-Way/Mono 4-Way Crossover with Limiters, Adjustable Time Delays and CD Horn Correction Professional stereo 2-way/3-way/mono 4-way crossover featuring state-of-the-art Linkwitz-Riley filters with 24 dB/octave Professional stereo 2-way/3-way/mono 4-way crossover featuring state-of-the-art Linkwitz-Riley filters with 24 dB/octave Individual Limiters on each output for optimal loudspeaker protection Individual Limiters on each output for optimal loudspeaker protection Adjustable time delay for phase alignment between drivers Adjustable time delay for phase alignment between drivers CD horn equalization for constant directivity horn compensation CD horn equalization for constant directivity horn compensation Absolutely flat summed amplitude response, zero phase difference Absolutely flat summed amplitude response, zero phase difference Low Sum function provides mono output for subwoofer operation Low Sum function provides mono output for subwoofer operation Individual output Gain controls for all bands Individual output Gain controls for all bands Individual output Mute switches for easy band adjustment Individual output Mute switches for easy band adjustment Individual Phase reverse switches for instant phase correction Individual Phase reverse switches for instant phase correction Switchable 25 Hz Low cut filter on each input for low-frequency driver protection Switchable 25 Hz Low cut filter on each input for low-frequency driver protection Servo-balanced and gold-plated XLR connectors for all inputs and outputs Servo-balanced and gold-plated XLR connectors for all inputs and outputs Ultra-high precision potentiometers for ultimate accuracy and repeatability Ultra-high precision potentiometers for ultimate accuracy and repeatability Illuminated switches for secure operation in dark stage environments Illuminated switches for secure operation in dark stage environments Shielded toroidal mains transformer for minimal noise interference Shielded toroidal mains transformer for minimal noise interference High-quality components and exceptionally rugged construction ensure long life High-quality components and exceptionally rugged construction ensure long life Conceived and designed by BEHRINGER Germany Conceived and designed by BEHRINGER Germany The CX3400 3-way stereo/4-way mono crossover features absolute precision, state-of-the-art circuitry, with superior-grade components, ultra low-noise op amps and balanced inputs and outputs. The CX3400 also includes a switchable pre-EQ circuit, providing enhanced performance of systems with constant-directivity horns. A user-adjustable multi-band limiter is included for the ultimate protection of individual loudspeaker system components. Sound Quality When a sound system is tuned properly, it becomes powerful, balanced and efficient. Bass content is punchy and tight, with vocals and instruments that are rich, crisp and well defined. The CX3400 crossover's accurate signal processing protects critical loudspeaker components and improves overall system efficiency. What's a Crossover? Chances are if you're reading this, you already know what a crossover is and you know that you need one. But if you are new to multi-way PA systems, here is a brief overview. Loudspeakers (which we call transducers) convert electrical signals into sound waves. And no matter how well a transducer is designed and made, it simply cannot reproduce the entire audio spectrum all by itself. Low-frequency sounds tend to push a transducer to its maximum, making it impossible for that same transducer to reproduce the treble content with the sound quality it deserves. (Try singing high falsetto next time you're bench-pressing your limit!) That is why high-quality sound systems use multiple speakers (woofers and tweeters) to share the work. When the woofer (usually the larger transducer) does all the heavy lifting, the tweeter can easily handle the high-frequency stuff. Three- and four-way systems distribute the work even more, allowing the individual transducers to reproduce the frequency range they are best suited to. It is the crossover's function to divide these tasks between the various transducers. Divide and Conquer The CX3400 provides two modes of operation: 3-way stereo, for left and right Lows (woofers), Mids and Highs (tweeters); and 4-way mono, for Lows, Low-Mids, High-Mids and Highs. In either mode, you have the option of normal (left and right), or summed-mono low-frequency output. Adjustable time delays (up to two milliseconds) are also provided, so that the sound coming from the various transducers arrives at the listener in-phase and at the same time. By using 1% metal film resistors, along with other extremely tight-tolerance components, the CX3400 is able to guarantee surgically precise frequency selection with incredibly low thermal noise. State-of-the-art, ultra low-noise op amps ensure super-quiet operation. CX3400's elegant LED matrix shows at a glance which operation mode is selected and which controls are active. Getting Connected All of the inputs and outputs accept balanced and unbalanced XLR connections. The inputs feature 25 Hz Low Cut filters for low-frequency driver protection. Mute and phase invert switches are provided for each frequency range, making troubleshooting an entire loudspeaker system a breeze. Value Stop by your authorized BEHRINGER dealer today and demo the CX3400, the super-affordable way to optimize the performance of your sound system.	B00ZUC3CVW Price: $145.95 Score: 5.650 Category: Electronics Rating: 4.8 Votes: 14 Find similar products Viking Electronics VK-FXI-1 FXO, FXS Paging Adapter. Description: ?- Viking Universal Paging Interface- Select: Fxo (Loop Start), Fxs (Ring Trip) Or Paging Port (Vox Relay) Interface Mode- No Power Supply Required In Fxs Interface Mode- Up To 6 Units Can Be Powered From One Adapter In The Fxo Or Vox Mode- 30V Dc Talk Battery For Interfacing With Fxo Or Unused Phone System Line Input/Trunk Port- Floating 600 Ohm Paging Output With Volume Control- Normally Open Or Closed Relay For External Paging Amp Activation Or Interfacing The Paging Amp With An External Background Music Source- 800 Hz Pre-Announce Page Tone (On/Off)- Compatible With 24 To 48 Volt Fxs Operation- Calling Party Control (Cpc) Detection For Immediate Disconnect- Busy Signal Detect Disconnect- 2.5 To 5 Second Vox Silence Disconnect Timer- Programmable Vox Trigger Sensitivity- 16 Or 36 Second Default Disconnect Timer- Screw Terminal Block Connections- Wall Mount Housing: (2) #6X3/4 Panhead Screws Included - Power: 12-24V Dc @ 100Ma, 120V Ac/12V Dc @ 500Ma, Ul Listed Adapter Included (Not Required In Fxs Mode)- Dimensions: 111Mm X 76Mm X 36Mm (4.38?? X 2.97?? X 1.38??)- Shipping Weight: .48 Kg (1.06 Lbs)- Environmental: 0??C To 32??C (32??F To 90??F) With 5% To 95% Non-Condensing Humidity- Relay Contacts: 30V Dc@1A, 110V Dc@0.3A, 125V Ac@0.5A- Vox Minimum Audio Signal To Activate Relay: -30Dbm Minimum / -26Dbm Minimum @ 1Khz With Vox Sensitivity Switch At Normal / Lower Positions- Vox Time Out Disconnect: 2.5 Or 5 Second- Default Time Out Disconnect: 16 Or 36 Seconds- Talk Battery: 30V Dc Vkfxi1.
B078SW7PNN Price: $8.38 Score: 5.587 Category: Electronics Rating: 4.4 Votes: 11 Find similar products 10 Pcs/Pack 600 : 600 Ohm 1:1 EI14 Isolation Transformer Audio Transformers. Specifications: Voltage ratio: 1:1 AC impedance : EI14 600 : 600 Ohm DC impedance: 135 Ohm Power supply phase: single phase Moisture-proof mode: open Cooling mode: oil immersed air co Frequency characteristics: intermediate frequency Windability : Double-wire winding Core form: amorphous alloy Core shape: EI type Appearance structure: vertical Weight: 40 g Package Included: 1 x 10pcs/pack o Transformers.	B00DHUA4YW Price: $18.72 Score: 5.587 Category: Electronics Rating: 4.4 Votes: 149 Find similar products PAC LP3-2 L.O.C. PRO Series 2-Channel Line Output Converter. Engineered to optimize audio levels between radio and amplifier to achieve the best audio performance and avoid noise. PAC's L.O.C. PRO, redefines the line output converter. All feature full 20-20k +/-1.5db frequency response. Unique Stereo Gain controls and universal harness.
B001DF4GME Availability: Currently unavailable Score: 5.495 Category: Electronics Rating: 3.6 Votes: 14 Find similar products C2G/Cables to Go 40428 3.5mm Stereo Audio Isolation Transformer. Every installation technician has faced it or soon will - the dreaded humming from the speakers, a telltale sign of a ground loop. Ground loops are caused by voltage potential differences at the ground point on your equipment. Voltages in the range of microvolts up to millivolts or higher can cause ground loops. Ground loops occur when multiple audio/video components are powered from different outlets, most commonly, outlets that are tied to different circuitbreakers or even a different secondary from the power transformer. Ground loops manifest themselves in the form of speaker hum. Our isolation transformer easily connects into your audio/video system and breaks the ground path through cables between components. Start at the component last installed before the ground loop was discovered, and connect the isolation transformer at different ends of the audio/video cable until the ground loop is gone. Gold-plated 3.5mm stereo jacks. Please Note: While this transformer is designed to eliminate ground loops, isolating the source of the ground loop can be very difficult even for professional technicians. Sometimes the problem can be at the last added component or at the furthest from the main system; however, these might only be symptoms of a harder-to-solve problem. Please exercise patience as you work through test scenarios to eliminate your ground loop issue.	B0002ZPL66 Price: $36.75 Score: 5.464 Category: Electronics Rating: 5 Votes: 8 Find similar products Dayton Audio XO2W-3.5K 2-Way Speaker Crossover 3,500 Hz. Quick OverviewThe Dayton Audio line of 2-way crossovers were designed using a second order (12 dB/octave) Linkwitz-Riley alignment. Dayton Audio metallized polyester film capacitors are used in both the high and low pass sections. Product Highlights 18 gauge inductors were used to keep DC resistance to a minimum Unique design feature of the low pass section allows use of 4 or 8 ohm woofers All components are glued or fastened down to eliminate buzzing and vibrations High quality blue PC board uses a back plate for added rigidity Product Manuals / Spec Sheets / Downloads AddThis Sharing Buttons Share to FacebookFacebook Share to TwitterTwitter Share to MoreAddThis 6 Product Description The Dayton Audio line of 2-way crossovers were designed using a second order (12dB) Linkwitz-Riley alignment. Dayton Audio metallized polyester film capacitors are used in both the high and low pass sections. 18 gauge inductors were used to keep DC resistance to a minimum. A unique design feature of the low pass section allows use of 4 or 8 ohm woofers, perfect for building DAppolito style or multi woofer 2-way systems. The high pass crossover frequency is rated for an 8 ohm load. All components are glued or fastened down to eliminate buzzing and vibrations. The high quality blue PC board uses a back plate for added rigidity and eyelet holes for easy mounting. Available in a variety of crossover points. 300W power handling. Board measures: 6-1/2 W x 4-1/4 H x 1-3/8 D. Product Details Model Number XO2W-3.5K List Price $32.99 Unit of Measure Each UPC 844632045165 Warranty - Parts 5 Years Warranty - Labor 5 Years Product Shipping Weight (lbs.) 1 Product Weight -- Product Height 4-1/4 Product Width 6-1/2 Product Length -- Product Depth 1-3/8.