Home Theatre Systems

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I have an SPL Series III CRM 300-2 300W max amplifier, and I am trying to hook up 2 Sony Explod 10in subs to it which peak at 700w. The amps qualifications are as follows: 4 Ohm Rms 70 x 2
2 Ohm Rms 85 x 2
Mono Rms 170

You are really underpowering those subs and i HIGHLY don’t recommend running them until you find a amp that matches the rms power output.

Running this way will cause the amp to not only get hot like previously stated but also, since it is trying to do much more work than it was made for it will most likely send your subs into clipping and they will blow.

Underpowering subwoofers, especially that much, is a no no in my book. But if you have to, only use one sub, then when it blows you have another to fall back on

Amplifier Tips : Do’s & Don’ts of Car Amplifiers

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Philips High Fidelity Labs Present Scarce Philips LP 6830 545 featuring classical and popular recordings in beautiful, brilliant high fidelity. Unusual gatefold album cover opens to a section called “Introducing HIGHER FIDELITY” which shows a nice array of Philips hi-fi products, which are listed below. AH784 18 W RECEIVER / AH785 30 W RECEIVER / RH545 Tri-Amp MFB SPEAKER / RH-541 Amplified SPEAKER / RH 567 Bi-Amp MFB SPEAKER / A…

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Amp 100 – amplifier $112.99 AudioSource Amp 100 – Amplifier

Sony Xplod XM-ZR704 700W 4/3/2-Channel Car Stereo Amplifier Customize & Amplify Sound From Your Car's Audio System! $93.74 Sony Xplod XM-ZR704 700W 4/3/2-Channel Car Stereo Amplifier Customize & Amplify Sound From Your Car's Audio System!

QSC GX7 Stereo Power Amplifier $539.95 The QSC GX7 amplifier is the ideal amp for professional entertainers who require maximum power, performance and portability on a limited budget. The hallmarks of the QSC brand – professional audio quality, meticulous engineering, precision manufacturing and long-term reliability – are all intrinsic to GX7. Add contemporary styling, multiple input/output options, extreme light weight(only 15.5 lbs!), and advanced protection circuitry, and the GX7 clearly represents real value – something everyone can use. Purchase a GX Series Amplifier from AMS and Recieve QSC’s after registering your product at QSC.com QSC GX7 Stereo Power Amplifier Features Power levels matched to the most popular speakers used by entertainers Optimized for maximum real-world headroom into 4 ohm and 8 ohm speaker systems  Versatile XLR, 1/4 inch TRS and phono input connectors for compatibility with any source Speakon combo outputs accept 1/4 inch TS plugs or Speakon 2-pole and 4-pole plugs Binding posts support all other speaker wiring systems Loads of power and it still only weighs 15.5 pounds The GX7 amplifier is powerful enough to handle most PA speakers on the market. Typically, loudspeaker manufacturers recommend an amplifier with power output equal to the speaker’s Program (Music) Power rating or two times (2 x) the Continuous (RMS) Power rating. The GX7 outputs 725 watts into an 8 ohm load. Owners of popular 4 ohm loudspeakers (such as dual-woofer, two-way models) will find the 700 watt (4 ohm) power of the GX5 an ideal match while the GX7’s 1000 watts will very capably power many of today’s popular subwoofers or two typical 8 ohm speakers per channel. The QSC GX7 adds the road-proven PowerLight supply to the Class H output section, for more overall output power and additional weight savings. The result is one of the highest power-to-weight ratios in the industry. A low-noise variable-speed fan with rear-to-front airflow keeps amplifiers and racks cool. As always, GX Series amplifiers are fully protected from the usual hazards of the trade, ensuring stable performance and long life. GuardRail GuardRail protection delivers full peak power while preventing detrimental overloads. During excessive clipping, or extreme overheating, GuardRail reduces gain just enough to preserve the integrity of the music, protect the speakers and keep the audience excited, without unprofessional distortion levels or shutdowns. Subwoofer/Satellite Crossover A subwoofer reduces strain on the full-range speaker, allowing it to play louder, or letting a smaller speaker do the same job. The GX Series supports this mode with a Crossover switch that splits the full-range input entering Ch 1, sending 20 Hz -100 Hz to the sub (Ch 1) and 100 Hz – 20 kHz to the top box (Ch 2). The front panel gain controls balance the sub and top box, while GuardRail optimizes peak power into the sub and top individually, for greater musical impact and dynamic range. GuardRail optimizes peak power into the sub and top

Roland Mobile Cube Guitar Mini Stereo Amplifier $169 The Roland Mobile Cube Stereo Amplifier is small and mighty, able to handle all types of electronic instruments and audio devices, and can be used anywhere, anytime. Connect microphones, electric and acoustic guitars, keyboards, drum machines, MP3 players, you name it, and jam for up to 15 hours. Roland Mobile Cube Features Battery-powered amplifier for anyone, anywhere, anytime 5W (2.5W + 2.5W) stereo power with two high-performance 10cm (4-inch) speakers Inputs for microphone, stereo-instrument, and stereo AUX; headphone output Center Cancel function for karaoke Built-in stereo reverb/chorus, distortion and more Dedicated strap included for easy carry around Small Size, Big Sound At just 11-1/16 (W) x 4-1/4 (D) x 7 (H) inches, no larger than a briefcase, MOBILE CUBE is a traveler’s dream. Battery-powered, it can be operated anywhere — just plug in, turn on, and jam. Two high-performance speakers provide stereo sound that defies Mobile Cube’s physical size. Built-In Stereo Effects Equipped with Roland’s legendary FX engine, Mobile Cube offers high-quality stereo reverb and chorus effects. Sweeten your vocals, add fire to your guitar tone, or immerse your mixes in a rich stereo sound field. Center Cancel is also provided for minimizing vocals in pre-recorded music — great for karaoke and play-along performance. All Instruments Welcome Thanks to its variety of inputs, Mobile Cube accommodates microphones, keyboards, acoustic guitars, electric guitars, MP3 players, and more; no other instrument amplifier of this size has a stereo input port. Use it as a practice amp at home, while traveling, indoors or out. It’s great for parties, karaoke, and vocal lessons. Connect it to a mic stand for use as a monitor speaker or micro PA.

ART SLA2 Stereo Power Amplifier $269.1 The ART SLA2 Stereo Power Amplifier stems from the success of ART’s popular 100 watt SLA1. For all of you power hungry audio enthusiasts, ART presents to you the powerful ART SLA2. The SLA2 is a studio linear power amp that delivers 200 watts of clean, clear power, and will help reproduce your mixes with near pinpoint accuracy inside a single rack space. ART SLA2 Features Toroidal Transformer 200 watts per channel @ 8 Ohms 560 watts bridged mono @ 8 Ohms 10 Hz – 40 kHz within +/- .5 dB XLR, Euroblock & 1/4 inch inputs Includes tamper-proof faceplate SmartFan Silent Cooling System Low Profile 1U Rack Mountable Extemely Low noise, Discrete Linear Design All Steel Chassis One of the top features on the SLA2 is ART’s SmartFan technology. In addition to a standard cooling fan, the oversized convection heat sinks located on each side of the SLA2 silently directs heatflow outside the chassis. What makes the SmartFan smart? It’s temperture-controlled variable speed keeps the amp quiet and cool while performing at lower output. SmartFan kicks in only when the amp’s heatload rises creating an on demand cooling system in warmer environments. With the already stellar level of sound quality, the SLA2’s redesigned circuitry combined with the same straightforward user interface quickly and accurately packs the additional power punch you need. ART has also included a tamper proof faceplate for your fixed installations. Its long list of useful features measure up to an incredible value. The SLA2 is perfect for pro, project and home studios, and is a perfect compliment to the ART SLM1 Studio Linear Monitors. The combination of these two units allow project studios upgrade their existing set-up for monitoring recorded material. ART Power Amplifiers Overview Offering a superb level of sound quality, ART power amplifiers feature clean, powerful circuitry, along with a straightforward user interface. They are an excellent choice when a robust amplifier is necessary to deliver the power you need for professional and project studio monitoring. ART power amplifiers may be used in a wide variety of project and professional studio environments. Self-contained in a steel and aluminum enclosure, these units are designed for many years of reliable performance.