Car Amplifier Installation Guide
Turn the key to your car and listen to the radio at low volume. Not at full power crank. You get a distorted sound, or a speaker can blow the air. You will feel the vibration in the car audio system More »
JL Audio 12TW3 and 10TW3 Car Subwoofers Drivers
JL Audio announced new TW3 car subwoofer drivers, which delivers a powerful combination of shallow and unbelievable ability to tour, available in 12 inches model: 12TW3 and 10 inches sizes model: 10TW3 More »
12-Step and 24-Step Series Attenuator Switches for Gainclone
This is attenator as a modification of the first version of the switch gainclone be used More »
The AVI 10 Inches Active Subwoofer for Home Theater and Multimedia Surround Sound
For kinds of music, but also some movies and TV shows often means a portion of the content of low-frequency special effects, there is an advantage in the use of 10 AVI \\\"is under the ADM9T It television, surround-sound AVI 10 \\\"Sub is essential More »
12AU7 Tone Control for Tube Amplifier Circuit
12AU7 tone control of the tube amplifier. So I would talk to my experience that I bought when I used the first amplifier, actions 12AU7 tubes More »
Indeed Hi Fi Labs 6N11 Tube Class A Headphone Amplifier
Indeed Hi Fi Labs 6N11 Tube Class A Headphone Amplifier
The review is a double review between the Indeed 6N11 Tube Class A Headphone Amplifier Versus the Qinpu Q1 + Indeed L-top 6N3 Buffer Amplifier combo. First off the Indeed Hi Fi Labs 6N11 Headphone amplifier is a Hybrid amplifier using a Chinese military grade class tube, if you see a J on any Chinese tube it means that this is military grade. The indeed amplifier is a combo of the 6N11 tube and the IRF63o Mosfet.
500 Watt High Power MOSFET Amplifier
500 Watt High Power MOSFET Amplifier
Amplifier circuit these days,We would like to musical you pro the MOSFET 500 watt amplifier is amplifier on my kW shares the same circuit and main PCB design. The barely real difference is the figure of output procedure to the device. We encompass using The IRFP448 design while the MOSFET amplifier 14 O / P procedure. These amplifiers can live used used for almost a few effort with the aim of requires in high performance, low apply din, distortion and brilliant sound quality.
Bridge Your Stereo Amplifier to Double Subwoofer Power Amp
Bridge Your Stereo Amplifier to Double Subwoofer Power Amp
A stereo power amplifier is limited in its output power by two main factors – the impedance of the load and the internal power supply voltage. To obtain more power, one has very limited choices – other than the purchase of a more powerful amp.
The load impedance can be lowered, but if the load happens to be a pair of standard loudspeakers this is not viable, since the impedance is set by the drivers themselves. Increasing the power supply voltage is generally a bad idea, since most commercial amps do not have a wide safety margin with component ratings, and will probably be destroyed if the voltage were to be raised sufficiently to obtain even 50% more power.
Dayton DTA-1 T-Amp Review
Dayton DTA-1 T-Amp Review
There are plenty of reviews on the net about the original version of this amp and they all say how amazingly awesomely awesome it is; worth more than ten times its price, crisp, clear, natural, sweeter than tubes, faster than that swimmer guy in the Olympics; a lot of positive feedback.
We have been listening to it nearfield since it fits so nicely on our slim and sexeh desk. Nearfield is a term used to describe when your speakers are “up close” to you, as they might be on a desk upon which you are working. It just means that you are hearing the speakers directly, without the colorations that arise from sound interacting with room conditions.
Isobaric Subwoofer Set-up
Isobaric Subwoofer Set-up
In my quest to minimise enclosure size, I stumbled upon a strange concept that allows to effectively halve the equivalent volume (Vas) for a given loudspeaker. In practice this means that the volume of the enclosure can also be roughly halved. The catch is that two identical loudspeakers must be placed ‘in series’, such that the air in between them stays at the same pressure. This configuration is therefore often called ‘isobaric’, ‘isobarik’, or ‘push-pull’. In a certain sense, it turns the two loudspeakers into a single equivalent speaker that has twice the driving force. The most compact way to implement it is to mount the two speakers against each other as shown in the bottom part of the image. It is not often used, for the simple fact that it doubles the costs and power requirements for the amplifier. But in my case, those were subordinate to the strict requirement of minimal size.
100 Watts Simple HiFi Mosfet Amplifier 2SK1058 2SJ162
100 Watts Simple HiFi Mosfet Amplifier 2SK1058 2SJ162
My friend Gianfranco was looking for a project amplifier powerful sound and warm. Fixed point had to be HEXFET. I did see some of the proposals with both bipolar and with HEXFET, with some front-end valve but the realization challenging and the relatively high cost of running without anything negative feedback or low feedback had focused on something more affordable. I did not agree. But the end had to have it and then he was master of his choice.
Choosing Fixed Resistor Types
Choosing Fixed Resistor Types
Fixed resistor types. There are many different Types of fixed Resistors available, from very small surface mount chip resistors up to large wire wound power resistors
Carbon composition
This type of resistor was once the most common type available, but now is seldom used as they have been overtaken by metal oxide or carbon film resistors. This resistor is considered too large nowadays for most applications and also has a large negative temperature coefficient. The resistance values would often change because of heating or aging effects.
Single Supply Low Noise Op-Amp Tone Control
Single Supply Low Noise Op-Amp Tone Control
This is single TL072 low noise op-amp tone control circuit. This circuit is a hybrid low-pass, high pass and one-pole circuits with attenuation and gain. This circuit is the solution for limits cost because it requires a minimum component. Here is the low noise Op-Amp tone control circuit. At my schematics TL072 using single supply.
TPA12A LM12CL TDA7265 TDA7293 TDA7294 High Efficiency Class D Designs for Small Hi-Fi and Stereo TV
TPA12A LM12CL TDA7265 TDA7293 TDA7294 High Efficiency Class D Designs for Small Hi-Fi and Stereo TV
The range of supplies that can be accommodated and outputs available now is large (the stereo TDA7265 (25+25W/8R) is useful for small hi-fis, stereo TVs, etc) and high efficiency class D designs can prolong battery life. The 50W+ TDA7293/4 series, which have DMOS output devices, offer a robust solution (the ’3′ can be paralleled for high currents into low impedances) and are seen in a number of ‘audiophile’ amplifiers and kits, like the Velleman K8040 and the Quasar 1218. In excess of 100W can be obtained from a single TO3 can with the TPA12A and LM12CL.
Fostex FE208 Sigma in Folded Horn Enclosure
Fostex FE208 Sigma in Folded Horn Enclosure
I started gluing up the cabinet pieces beginning with the speaker frame and the top of the cabinet being glued to the side first. Since there are not really clamps to hold these pieces in place, lay the cabinet side on the floor or a sturdy table, glue both pieces and fit together. Set another board on top of the glued pieces and weigh it down with books or something similarly heavy I used cans of paint, lots of them! Do both cabinets at the same time. Be absolutely certain each board you glue is perpendicular to the side panel ? check it twice. Errors here will ruin your project. Remember that you cannot have any gaps between boards in your enclosures. I did not use any screw or nails in my construction, so it limited me to how many pieces I could glue together at a time. Usually I glued one piece per cabinet side, waited 8-12 hours and glued another. You?d be surprised how fast they went together.
