Bypass this or that volume control...are we really bypassing, or are we paying even a small price. In order to balance this tradeoff in a more desirable manner, a variable-gain controller is proposed, which switches the controller gain based on the magnitude of the patient flow. For the comfort of the patient, fast pressure buildup (and release) and a stable flow response are desired. We know some more tricks since then as well, so I'm sure there will be something coming that will satisfy that market. Variable Gain Control. Or is this actually acting as a gain control directly on the amp? No, a voltage controlled resistor is effectively what is happening in a JFET, like those we use in our products, but they are not part of the volume control for us. I. Charley was so excited, he called up John Curl to tell him what he was able to do and John couldn't believe him! The effectiveness of the control strategy is demonstrated in experiments on different test lungs. The Computer Audiophile Why not use the great volume control and other tech in a newer flagship component that addresses problems people have *now* in the streaming age? A variable-gain or voltage-controlled amplifier is an electronic amplifier that varies its gain depending on a control voltage. A great volume control is *necessary* but the KX-R/Twenty is 6-7 years old or more and Ayre’s needs to innovate to catch up or even remain competitive in the market. Well, if we were to equate the KX-R to simply a volume control, then can see your point. This type of circuit has many applications, including audio level compression, synthesizers and amplitude modulation. However, linear controllers typically need to balance between these conflicting objectives. Variable gain amplifiers deliver unmatched performance for signal chains that require high dynamic range. Would be interesting to see a head-to-head comparison of these technologies at some point, though suspect that the answer to "which one is best" will likely be, "it depends.". The is a nice series to show here on AS. I simply don’t see the value in paying $25k for a volume control and 6-7 extra inputs plus taking up unnecessary rack space when the dollars can be used more wisely somewhere else. It features the superior performance of the Gen 3 Pinnacle image intensifier with manual gain control to optimize resolution in variable lighting conditions for better situational awareness. Functionally, the gain of the a… The VGT is a variable gain amplifier stage, so closest to the third option. This feature sets the PVS-14 apart from other popular monoculars that do not offer this feature. Variable gain amplifiers to meet your varying performance requirements Gains up to 1000V/V and bandwidths to 4.5GHz - get the right gain at the right time We offer a wide range of variable and programmable gain amplifiers capable of improving the dynamic range of a circuit with the ability to adjust the amplitude of the signal in real time. tradeoff in a more desirable manner, a variable-gain controller is proposed, which switches the controller gain based on the magnitude of the patient flow. I strongly suspect any analogue contraption, and nothing irritates me more than being able to pick the steady loss of quality as the contacts of the mechanical parts degrade with time - refreshing the contact area is not a solution! The effectiveness of the control strategy is demonstrated in experiments on different test lungs. I sometimes wonder why people don't put in as many as they can on an analog preamp considering the price difference is so negligible. I'm really looking forward to the time that I'll be blown away by it. Hey Rhmmmm, appreciate the response. You said yourself the KX-R Twenty hasn’t been updated since 2014. It's pretty rare in our design process for that to happen and the KX-R Twenty was born. As far as an R-series DAC, well, there's a bit more to that story. COPYRIGHT: (C)1992,JPO&Japio Proceedings of the 5th ICEENG Conference, 16-18 May, 2006 Military Technical College 5th International Conference Kobry Elkobbah, on Electrical Engineering Cairo, Egypt ICEENG 2006 FUZZY LOGIC VERSUS VARIABLE GAIN CONTROL OF SWITCHED RELUCTANCE MOTORS Amged El-Wakeel* A. Eliwa* G. El-Nashar** ABSTRACT This paper presents a comparative study of speed control for switched … • September 19, 2020. The op amp variable gain circuit below maintains input impedance over the range of the gain, providing a distinct advantage in some instances. It is not uncommon to need an adjustable gain in an analog signal processing chain. I never really thought of the volume control until I used the volume control in HQPlayer for the first time and realized how good essentially perfect channel matching and balance were. In a radio apparatus including a plurality of variable-gain amplifiers and at least one frequency converter which are connected in series, a gain controller includes a plurality of gain control lines and a gain control signal generator. Units are constructed of high grade components to give the ultimate gain flatness and stability performance. On 10/15/2020 at 8:29 AM, Ryan Berry said: https://en.m.wikipedia.org/wiki/Voltage-controlled_resistor. The gain control lines are connected to the variable-gain amplifiers, respectively. The Total RE Remains Constant To Dc, Keeping The Bias Fixed. In order to balance this tradeoff in a more desirable manner, a variable-gain controller is proposed, which switches the controller gain based on the magnitude of the patient flow. 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