audioXpress January Inside This Issue · Supplemental Material · Digital Login. Voice Coil December Inside This Issue · Digital Login. Trending. Please note! We do not make coils wound on plastic bobbins due to risk of microphony, nor do we use ferrite cored coils that saturate abruptly. All Jantzen coils. audioXpress 1. Horn Theory: An Introduction, Part 1. By Bjørn Kolbrek. This author presents a two-part introduction to horns—their definition, features.

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And in spite of the New Economy’s dictum that the consumer is king, the kingdom the consumer inherits is not entirely his. They are brand new high quality bulbs not the cheap junk from China. In fact, it can be used to calculate passive crossovers for use with speakers by entering 8 ohms as the terminating resistance. In this article from audioXpress archives, originally published in JulyCharles Hansen describes four hybrid power amps that anyone might consider for their own designs.

Now that turntables are back in force, this excellent project not only allows some knowledge about a vital part of the motor’s rotational speed adjustment, but it also dives into one of the most crucial aspects of a record player for anyone interested in a little DIY or restoration projects.

A Power Supply Spreadsheet

Each file has two main pages: Kit includes 4 bulbs and 4 new filter caps they auddioxpress GM factory color.

Audikxpress how the differential line receiver inverts an input signal applied to this new input and how the power amplifier also inverts the signal, so the phase is maintained at the power amplifier’s output. We think that’s more to it. If the tube’s output clips, the solid-state amplifier will trace horizontal lines.

I know this because the few times that I have mentioned a power OpAmp in these pagesI have received a ton of e-mail from gainclone fanciers. The tube, in his example a pentode, receives the input signal and the solid-state amplifier slavishly follows the tube’s lead.


This article was originally published in audioXpress, March And he is right, as long as no loudspeaker with an impedance of less than ohms is driven. We also discuss Audloxpress Testing issues among other things. Shouldn’t I be worried about the 12AX7’s inability to drive an 8-ohm load, even with the help of a 50W solid-state power amplifier? This article was originally published in audioXpress, May Want to know more?

Well, let us engage in some more topology alteration. Or is it just a hybrid amplifier? This program’s goal is to provide a quick and easy display not only of the frequency response, but sudioxpress of the resistor and capacitor values for a passive and active filters and crossovers. In this article, Joel Hatch explains how to build a variable frequency synchronous motor controller to control turntable speed.

This article was published in audioXpress, January May 28, by Mark Driedger. This article was originally published in audioXpress, March I have described Aikido frontends driving gainclones beforebut I would prefer a simpler solution, such as the following circuit, which I have shown before.

New Hybrid SE OTL? & Aikido Gainclone & Circlotron Lie Detector

A TDA power amplifier—which is much like the famous gain-clone power OpAmp, the LM —supplies all the needed heavy current swings into the loudspeaker and also feeds the tube, whose plate resistor attaches to the output and whose cathode resistor attaches to a 95V negative power supply rail. The Audio Voice Newsletter. This article was originally published in audioXpress, December In over 30 years of designing loudspeakers, I have found the following measurements taken as a group provide the strongest predictor of loudspeaker preference available to us today.

The Tube CAD Journal’s first companion program, TCJ Filter Design lets you design a filter or crossover passive, OpAmp or tube without having to check out thick textbooks from audiospress library and without having to breakout the scientific calculator.


So is the above amplifier an OTL? Let’s read what the good folks at Bur-Brown have to say about their INA differential line receiver: This article was originally published in audioXpress, October No doubt that you have been told that in multi-gauge loudspeaker cable, the high frequencies travel through the thin wires and the lows travel through the fat wires, exclusively.

Four Hybrid Solid-State Power Amplifiers

The entire system runs on 8 AA batteries and should operate for approximately 4 hours continuously. Before we get to the severe part of the audio-autopsy, below is an illustration of the AC relationships within the amplifier.

LG’s latest range of soundbars expands on the collaboration with Meridian Audio for the electroacoustic design and adds Artificial Intelligence capabilities that the Audixopress brand has been developing now for all its consumer electronic products.

Imagine going to the bank to ask for a new business loan and having to tell bank officer that you wish to create a DIY audio magazine… When the laughter dies away, so will have all your hope of creating the magazine. December 12, by Gary Galo. The INA holds two sets of 12k and 6k precision resistors and these resistors can be wired up in two ways: A pot with audioxprdss levels and precision metal film resistors that is hard to beat for sound or facility, as he describes it.

This article was originally published in audioXpress, September With updated sections formore online exposure than ever, this is audioxpress time to secure your entry and promote your business!

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