Circuit Wiring

The five center frequencies are independently set using external capacitors, and therefore act as an output stage buffer amplifier and tone control section is a series of its own, it is possible to do fine control over the frequency bandwidth. By using two BA3812Ls, you can create a 10-point graphic equalizer. Great header and pieces can be set by external components.

The recommended power supply of 8V, but this circuit can work well for supply voltage 9V. Limit the maximum voltage is 16V.

The circuit is given in the diagram operates in around 5 frequency bands:
100Hz , 300Hz , 1kHz , 3kHz , 10kHz

The five center frequencies are independently set using external capacitors, and therefore act as an output stage buffer amplifier and tone control section is a series of its own, it is possible to do fine control over the frequency bandwidth. By using two BA3812Ls, you can create a 10-point graphic equalizer. Great header and pieces can be set by external components.

The recommended power supply of 8V, but this circuit can work well for supply voltage 9V. Limit the maximum voltage is 16V.

The circuit is given in the diagram operates in around 5 frequency bands:
100Hz , 300Hz , 1kHz , 3kHz , 10kHz

The order of 4 or sealed rear chamber bandpass system is essentially a system of watertight enclosures with the addition of an acoustic filter for the driver. The resulting system usually provides a lower cut-off frequency, the compromise that a larger case. The space can be reduced by two drivers in isobaric configuration.

4th-order bandpass systems generally show better able to handle the functions that the other major systems are considered. The transient response and is second only to the sealed enclosure systems, making it a good choice for subwoofer applications.

Since all output 4th order bandpass system is via the port, the largest diameter possible for the port area should be used to minimize noise from the port. The ports must be incinerated where possible, for the same reasons.

4th order Isobaric Subwoofer Box Design

The 4th order bandpass system rarely allows a perfect bandpass response - there is usually an out-of-band noise present in the production. A notch filter can be used simply to reduce the noise as audible. Otherwise, a lowpass filter used in series with the driver, but the in-band response system may be affected if this approach is taken.

As the speaker sound 4th order band pass issued by the openings or ports on the port side of the box, the port noise inevitable.

This unwanted noise can be minimized by a notch filter and the largest diameter possible for the port of the area should definitely be used. Another option is to burn the ports of the 4th order bandpass room as this will certainly help to reduce unwanted extra from the subwoofer.

WOOFER / MID MODEL - 5MP60 / N

Specifications :

Source : alectronics.blogspot.com

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Take Classic raises the piece for 5.1 narrator classification performance. It includes a powerful 200-watt subwoofer with a front-firing seaport, 8-shuffle driver and wavy Elliptical Surround™ in support of deep with the intention of you feel when much as hear. The Convergent Source Module (CSM), with its 3-shuffle poly-titanium woofer and .75-inch hyperbolic aluminum-pitch tweeter, focuses sound for clearer dialogue and stirring melody. The CSM gives soundtracks a dynamic frequency range and a colossal soundstage, used for smooth, realistic sound from every one satellite lecturer and the base channel. song and motion picture lovers rejoice. Take Classic puts the passion back into your favorite films.

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Convergent Source Module

The Convergent Source Module, before CSM, provides broad dispersion, low distortion and amazing midrange performance. The lecturers midrange and tweeter are positioned inside close proximity to individual an alternative and accomplish seeing that a single source, by this means increasing overall dispersion and falling some lobing effect. The chambering of the middle and tweeter lowers the drivers resonance, plummeting distortion.

wavy Elliptical Surround knowledge

Energys patented ridged Elliptical Surround technology (U.S. patent #6,725,967, Canadian patent #2,407,123) increases excursion, eliminates distortion and raises efficiency on woofers and subwoofers. The Elliptical Surround encompasses the conduit, allowing it to move identically concerning both instructions, follow-on in come up to nil distortion. And while standard designs are often plagued with surround dimpling, which causes them to give off in and off of segment and distort on all listening levels, Energys designs arent influenced by dimpling on all, as a substitute proprietary grooved Elliptical Surround expertise allows representing a better conduit come up, resultant trendy greater efficiency. This design as well lets the conduit do greater crest to peak movement, in this way allowing it to travel added than bend in half the distance of the competition. These attributes enable Energy woofers and subwoofers to move incredible amounts of air, ultimately allowing them to joke about drop frequencies with greater low lean-to and fidelity.

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Technical Specifications

Performance Tips: 

The center channel spokeswoman needs to be alive centrally located so so as to the dialogue appears to be approach from the center of the screen. It needs to be more than or else underneath the overseer, while faithfully to it as feasible. If youon the subject of using a rear projection television, the nearly all likely option is to place it over the screen. If you say a front projection method, you have choices-rack mounting, otherwise placement on furniture, in support of illustration. It is principal, though, to place the orator so to facilitate its front frame is even with the edge of the shelf or else stand underneath it. unsolicited diffraction occurs whilst the foundation channel is too far back into a cabinet or else other exterior with edges with the aim of possibly will impede sound dispersion.

In support of not here or else utterly front channels, the distance concerning the speakers be supposed to live 6-8 feet on smallest amount for the greatest stereo imaging. The optimum extent identity is rectangular, with the speakers along solitary of the shorter walls, facing the opposite margin. If probable, figure out not place speakers hostile to a fence or else by rear of a bookshelf; corner placement is generally the most evil option. Try to keep the speakers-especially rear vented models-next to smallest amount two feet from the plane behind it, save you manipulation a vent plug. pro superlative results mounting on a rear cage up, pose the speakers so they flank the major listening area and item with regard to the front of the opportunity. They be supposed to be situated raised to a height of approximately six feet and ought to ideally give a window of six feet involving them.

The three a good number normal subwoofer locations include corners (which can upshot taking part in boomy otherwise exaggerated low frequency response), placement along a mountain, away from the corner (producing moderate low performance with increased fidelity terminated corner placement), otherwise beside a front spokeswoman (creating a better blend with the front speaker, but sacrificing overall volume). Experimentation with subwoofer placement is highly encouraged; slight adjustments can create giant differences clothed in sound reproduction. To test subwoofer placement, install it in the short term in your chief listening attitude and march around the listening space while on stage a familiar bit of melody until you catch the most excellent sounding position.

Actually, 5.1 channel amplifier consists of 6 amplifiers 1 channel mono, which has certain specifications on each canals. Has 6 channel surround sound amplifier that consists of Front Left | Center | Front Right | Rear Left (Left Surround) | Rear Right (Right Surround) | and LFE (Subwoofer).


For clarity I give a simple illustration of the layout and the circuit for these speakers.

5.1 Speaker Setup

Accoustic Field Generator

Acoustic Field Generator is generating acoustic sound with surround effects are adjustable with a standard Dolby Surround, able to produce surround sound is good enough but not too much need of funds. Technological developments as if not only focused on one area alone but on all fronts. The development of technologies that exist today one of them is in the field of audio. With more advanced audio technology today not only as mere entertainment but has become a hobby, hobby is not cheap of course. Many audio enthusiasts trying to make music sound that sounded to be very hard to make music sound as live, the addition of the amplifier, woofer or special speakers that cost is not cheap.

The sound effects are living seems to now is something that most do not have to exist in every good audio devices. This effect is basically a surround effect that can lead to sound as though coming from different directions and his voice can still be heard clearly. Currently Compo-tape tape that has been a lot of these facilities surround sound but not good enough when heard from a considerable distance because of the effects surroundnya missing. This is because the distance is too far listener and speaker, speaker layout is not quite right, or the effect of unfavorable surround.

Surround effects are nice and can be heard with a good surround system is a system that is in movie theaters and to make it not a bit prangkat needed funds. However, if satisfaction remains the number one then the fund is not a major problem. To find a middle ground between price and quality surround effects it was attempted to make the Acoustic Field Generator that can produce surround sound is good enough but not too much need of funds. Acoustic Field Generator is capable of generating acoustic sound with surround effects are adjustable with a standard Dolby Surround.

Accoustic Field Generator Construction


Basically an Acoustic Field Generator built from op-amp circuit and filters. Op-amps are usually used as a voltage amplifier in the Acoustic Field Generator is more widely used as active filters. The filter in the tool is very instrumental in creating an acoustic sound that is really clear, but in practice, almost all the filters, do not miss the precision of the signal with a specific frequency. An op-amp is good for this application is the op-amp which has a wide bandwidth, rise time, slew rate and fast setting timenya. In addition to op-amp and active filter, theres more important parts of the power supply. This is the part that is instrumental in creating excellence acoustic sound because of the bad power supply which is the only producer of noise, which will enter into a voice signal path so that should clear acoustic sound into an acoustic sound with the addition of reverberation (noise). The power supply used is the twin power supply + / - 18 volts DC. Part Acoustic Field Generators

Before we start doing this project, it helps us know in advance about the function of each speaker.

Front Channel

Channel Front is a forward channel input signal LR. LR signal is passed to an amplifier with gain = 1 so that this signal is passed without change / to filter the input signal LR. Front Left and Front Right, is a public speaker that we encountered in stereo amplifier, consisting of a woofer and tweeter. Woofers generally produce low tone sound with a frequency range ranging from 80Hz - 250Hz, while the tweeter produces a high tone with a frequency range between 15kHz - 20kHz. For projects that we will create, its good we use a good quality woofer, with a size of 10 inches and a type piezoelectric tweeter for each speaker fronts.

In this section is the core of this hard perangakat. These sections produce surround effects. To produce the surround effect is required special IC MN3005 / 8 and MN3101. Both these ICs will delay the incoming signal in several phases, so that the signal output from this phase will be left with a signal phase of the signal lain.Pada this section L and R are deducted (LR) and then passed in the buffer, filter LPF, delay line, filter LPF (7KHz) and the last is a splitter between the signals R and L. Circuit which causes the surround effect is 75KHz LPF circuit that produces its output fed to the Right Rear 75KHz LPF amplifier input while it diparalel with the Left Rear amplifier input so as to produce two signals L and R which is basically a LR signal a phase lag with the original signal phase.

Rear Left and Rear Right, also known as surround speakers. This speaker is generally a semi-midrange speaker (usually used on television or Mini Compo), commonly called satellite speakers. In a movie surround speakers are used to generate the audible sound of distant voices or sounds that move from the back of our approach. In a music surround speakers produce sound backing vocals and generally sounds like guitars, violins and trumpets sounded clear here.