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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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This article illustrates the problem for the midrange driver in a three-way system, which will be crossed over to a woofer on the low end and a tweeter on the high-end. July 24, by Ramkumar Ramaswamy. December 21, by audioXpress Staff. A temperature sensor and over-temperature shut-down capability are also included.

In other words, the pentode is run as a pentode, not a triode-connected pentode. The dual version features completely independent circuitry for lowest crosstalk and freedom from interaction, even when audioxpreds or overloaded.

All items in category Project Articles. I have described Aikido frontends driving gainclones beforebut I would prefer a simpler solution, such as the following circuit, which I have shown before. Starting from the idea that an op amp provides both a differential input stage and high overall gain in one package, Hansen explores the ramifications of using an op amp as a combined audloxpress and voltage amplifier stage in power amplifiers.

This is not surprising. My concern, however, is with topology and circuit functioning, not audio product reviews.

January 29, by audioXpress Audioxpres. This article by Ron Tipton details the design and construction of the TDL Model high-performance microphone preamp, using a differential input stage that used compound transistor pairs with circuit resistance values, computer optimized for very low output noise. I bought an Aikido stereo linestage kit from you some days ago, and I received it just this Monday. Each file has two main pages: The entire system runs on 8 AA batteries and should operate for approximately 4 hours continuously.


Getting the Most from THAT’s Balanced Line Drivers and Receivers

What can we expect to see? Now, the most the consumer king can aspire to is an exultant and impeccable consumption, a consumption as extravagant as his bank account allows and as correct as the experts, engineers and designers, vouchsafe. This article was originally published in audioXpress, May My focus here is on compensating for phase nonlinearities in the driver. He wrote the original article more than a decade ago for Recording magazine.

Rather, the TDA power amplifier bestows a gain of 32, auudioxpress which half remains 16 because of the -6dB 0. Like all NewClassic products, the audkoxpress Pre represents a 208 generation of affordable, high performance audio products from Parasound. The report presents a technological and economical comparison of four of the newest and most competitive systems-on-chips SoCs available on the market today from four different manufacturers.

That’s what you normally get with a quality design, but to achieve it, the author shares the complete concept, power requirements, circuit topology, construction and testing of this single-ended amp This signal is rectified, filtered, and regulated in a conventional sense. Audkoxpress 12, by Gary Galo. With updated sections formore online exposure than ever, this is audioxpress time to secure your entry and promote your business!

A pot with 64 levels and precision metal audioxpreas resistors that is hard to beat for sound or facility, as he describes it.

The INA holds two sets of 12k and 6k precision resistors and these resistors can be wired up in two ways: Not too long ago, 50 years ago let’s say, the average audiophile reigned over his system, owning an understanding of the circuitry and the mechanics involved, building and designing much of it himself, selecting and choosing the fundamentals, triode or pentode, single-ended or push-pull, rather than just choosing the appearances: June is — we have to say it — undoubtedly one of the most diverse and interesting issues we have put together.

The PB shares an almost identical feature set with the existing PB.

Koonce, and Nelson Pass: October 31, by George Ntanavaras. In this article, Ron Tipton explores the use of stroboscope discs to determine whether your turntable is set to the correct rotational speed. That was quite a mouthful and I expect that audixpress will be the differential line receiver that makes many scratch their heads but, trust me, it’s not that complicated.


They are brand new high quality bulbs not the cheap junk from China. Let’s read what the good folks at Bur-Brown have to say about their INA differential line receiver: The poor rich kid, hobbled by too much money and by a fear of grease under his fingernails, can only hope to buy, but never really own such a hotrod.

Before we get to the severe part of the audio-autopsy, below is an illustration of the AC relationships within the amplifier. Sadly, the audioXpress community lost one of its most esteemed and prolific writers. Still, this seems a petty quibble when we are offered a high-wattage, affordable, hybrid, OTL power amplifier.

Items tagged with: audioXpress archive | audioXpress

By the way, a 12AX7-based-hybrid-OTL amplifier just might sound much better than the pentode-based original, as triodes are much more linear than pentodes. The pendant line offers both 4″ WP4BT and 6.

In addition, tube circuitry is readily malleable: The PL undergoes a current swing of 70mA at full audioxpreds and I assume that the TDA presents a low output impedance, say a damping factor ofwhich would imply an aduioxpress impedance of 0. Now let us add the tube input stage back into the OTL amplifier there is not much point to having an OTL xudioxpress without tubes and let us look at where the tube’s current flows.

This article from respected author Ari Polisois deals with a single-ended amplifier with enough power to drive even the most difficult speaker xudioxpress — delivering 50W per channel.

We looked at the most-read articles of in audioXpress.