Count to ten in chinese audio amplifiers
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KATANA-100 MkII
Most guitarists would probably not consider themselves experts when it comes to the subject of natural sciences. Although you may have a vague idea of the different scientific phenomena that hide behind every note you play, your main focus as a player — quite naturally — is usually on the music itself, and the instrument. Boring science is just something that would get in the way. And yet, consider this: the everyday electric guitar player probably namechecks a bunch of famous physicists regularly, even though they might not be overly au fait with the scientific laws associated with these long-dead genii in white coats.
Hertz, Ohm, Volt, Ampere — these are all familiar names that belong in the basic vocabulary of any slightly technically-minded guitarist. These things duly considered, it can be highly insightful for you to get to know the stories — and the theories — behind those names in a bit more detail. Some amps, like the one pictured, have multiple connections for speakers. This can give you more flexibility in finding a matching setup. In practice, this means using corresponding speakers and amps.
For example, if you connect an 8 ohm speaker to the 8 ohm output on a tube amp, the internal resistance of the source that is, the tube output stage is exactly that of the load, or speaker. In this way, and only in this way, can the amp unleash its full power on your unsuspecting audience. This is also the only way you will get your amp to sound exactly like the designers intended it to sound. But what are the consequences of doing this: can it damage your equipment, or can it have a negative influence on your all-important tone?
As long as you remember this, you should be on the safe side, even with a mismatched setup. But what happens exactly when you use the various impedance combinations?
Here are a few examples:. How to connect your mismatched speakers and amps successfully. For more detail, read the three cases below! With this combination, the voltage at the speaker output will rise, while the current will almost halve.
Here, the complete opposite to Case 1 occurs: while the speaker output voltage significantly falls, the flowing current only marginally increases. Because this combination can help lessen the self-induction effect that might occur in your tubes, it is generally safer to use than the example in Case 1.
Case 3: the exotic combination of 16 and 8 ohms together, and how to hook them up together…. Is that even possible? To put it simply, yes. This can be surprisingly easy to calculate. In this case, that would mean we will end up with a total resistance somewhere south of 8 ohms. To be more exact, we can calculate the precise figure using the following formula which, by the way, only works in cases where you have two parallel resistors!
Based on these variables and peculiarities, you can start to think about whether you would prefer to use this combination with a tube amp output of 4 or 8 ohms.
As a final point, and just like with another of our recent posts — When could, would and should you replace tubes? In return, checking out the various options you have with your amps and cabs could give you way more options to improve your tone.
Verify the impedance of your speaker so you know which jack to use. If you want to use the amp with two 8 ohm cabs a 4 ohm load connect one cabinet to the 4 ohm jack, and connect the two cabinets together with another speaker cable. For two 16 ohm cabinets, connect to the 8 ohm jack and connect the two cabinets together. What about what not to do? Any common mistakes that you know that can really screw things up?
Speaker blowouts, Amp blowouts, poopy tone? This is really valuable information. Thank you so much! Most amplifiers I have are 8 Ohms, but once upon a time I had a small amp which had a 16 Ohms output.
After selling it the cab is dusting away so I want to re-use it again. What is the actual ohm jack I should use? Kinda confused on all this impedance stuff! I have a 20 watt tube amp, 8ohm speaker output jack! My 1 12 cab says 8ohms too. But why is there a LINK jack right beside it? If 8 goes into 8 why another jack?
The Cabinet is marked as 8 ohms. My research all but proves the combo speaker is 8 ohm, and the cabinet total load is 8 ohms. Sounds to me like I should be able to use the 4 ohm and 4 ohm ext jacks, but PRS will not confirm.
Our first thoughts are: yes, PRS are making things very complicated for themselves by doing it like that! But the question is: should the combo be treated as 16 ohms, or as 8 ohms?
And the next thing is: is plugging an 8-ohm cab into that OK? Well, by our experience, it would be. We hope those general musings help a bit. Have you tried plugging the cab into the different jacks to see what results you get? Hi, I am a bit confused about the impedance mismatch with 4Ohm speaker and 16Ohm Amp.
If the load gets lower, the power dissipated by the output impedance increases. Is not that a possible issue for the amp? Is it a possible cause of overheating? Thank you in advance. Hi Giovanni. I have a marshall dsl40c combo. It comes with a 16 ohm speaker attached. It has 2 more 8 ohm outputs.
Hi Christian. Thanks for the info, I was surprised too, as the mesa cabinet I traded for did have 8 and 4 jacks. What I wanted to be clear off is that starting slow and low would be OK for the amp.
Ah OK, good to know! Is that one OK? You never know, they may have a different opinion on the matter! Any help will be greatly appreciated. From your diagram my 8ohm into 4ohm should be ok. Am I correct in this thinking? Hi, I have an ashdown lil bastard 30w bass amp with 4 and 8 ohm outputs.
I want to connect it to my orange which only has 16ohm outputs. If you start gentle and work from there, generally nothing is going to break.
I have a 2 yr old tube meister. I am doing solo shows and the digital processor to the FOH is lacking that tube crunch. Question: I was thinking on hooking up the HK and miking it to the FOH for that tube sound, is this a good choice or should I go with the Keep in mind this is an augmentation to the digital processor.
Hmm, the real thing here is… what kind of music do you play? I have a Crate Blue Voodoo watt tube amp head that I intend to use for a bass amp I play a Fender Telecaster bass that I bought brand new when I was a kid , the amp has four output jacks and a choice of 4, 8, or 16 Ohm impedance.
If all the cabs were 8 Ohms I think the result would be the amp set for 4 Ohm load pushing onto a 2. The best thing you can do first though is find out what the exact impedances of each cab are before you do anything. You never know, one of them might be something other than 8 ohms… The other question is: will the Crate amp like being used for that?
I am fine running them both in 16 ohms or should I use 4 ohms on the combo amp ? I am thinking the dual 16 is fine but just checking. This is exactly what I was looking for! Thanks for this article. Hi Mike! Hey there! It says 8 ohms min on the back. Or do I have to unplug the main speaker and run the cab separately?
Hey there Lennon! Is there any advantage to running at either 4 or 16 ohms matched into the cab? Also at the end of the first gig i lost output, we were trying a few things to get it working cables, pedals etc and after a few minutes i found it was the input socket on the cab. Swapped the speaker connection over and it was fine for the last couple of songs. When i later checked, the socket was loose although not sure why that would cause the problem so i tightened it up and went over the solder joints on the board just in case.
It seems fine now though hasnt been used in anger since.
[^PDF/Book]->READ Designing Audio Power Amplifiers by Bob Cordell Full Read Online
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6n6p amplifier
Ask the Lord of the harvest, therefore, to send out workers into his harvest field. I am sending you out like lambs among wolves. I 4 Do not take a purse or bag or sandals; and do not greet anyone on the road. J Do not move around from house to house. M Yet be sure of this: The kingdom of God has come near. Woe to you, Bethsaida! For if the miracles that were performed in you had been performed in Tyre and Sidon, they would have repented long ago, sitting in sackcloth R and ashes. No, you will go down to Hades. X 19 I have given you authority to trample on snakes Y and scorpions and to overcome all the power of the enemy; nothing will harm you. AA Yes, Father, for this is what you were pleased to do.
Audio Amplifiers Class-D Audio Amp, Pack of 10 (TDA8932BTW/N2,11
Best stereo amplifiers Welcome to What Hi-Fi? Stereo amplifiers aren't as simple and stripped back as they used to be. The days of equipping them with just analogue inputs and outputs and a pair of speaker terminals are now no longer the norm. With laptops, smartphones and streaming services becoming ever-more popular music sources, the integrated amplifier has moved with the times. Many now contain built-in digital-to-analogue converters DACs , phono stages for turntables, USB connections for laptops and hard-drives, and Bluetooth streaming.
Analog Devices
Outstanding receivers and amplifiers for discerning audiophiles. From time to time I collect stand-out products for a gallery, and this time I'm bringing you the best receivers and amplifiers. It's a velvet brute with watts per channel of Class AB power on tap, ultra-high-resolution kHz and bit digital converters which also handle DSD files , all packed into a handsome chassis that's available in silver or black finishes. The Outlaw Audio RR stereo receiver is one seriously heavy beast. This bad boy weighs a hefty
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Cellphones and lithium-ion batteries, along with the overall trend toward lower voltages in gizmos across the board, have pushed chip manufacturers to do more and more with less and less. There are some great amplifier chips out there running on 3. This is a win on all fronts. Because these amplifiers are marketed toward use in tiny devices, the vast majority are in surface-mount technology SMT packages. There are hundreds of few-hundred-milliwatt amplifiers out there that can outperform it.
The symbol for bel , a unit for level. Symbol for susceptance and, confusingly, also the symbol for magnetic flux density. The symbol for the high voltage power supply found in battery-operated radios featuring vacuum tubes. In these designs there was an "A" supply for the filaments, a "B" supply for high voltage, a "C" supply for bias and a "D" supply for screen grids.
I couldn't resist the itch to try myself at my own schematic of a two stage amp using the russian 6N23P double triode in a long tailed pair as input stage and the 6N6P in PushPull for output duty. Audio: the main show. Mind you, the effect of tube rolling in the power supply part is as significant as the main unit if not more. It is responsible for source selection, signal conditioning and volume control.
What Hi-Fi? You can't get worthwhile deep bass out of a small enclosure period. JBL was wise not to try. I then disassembled a pair of speakers I had to scavenge the mid-range speakers, the crossovers, and the tweeters. My girlfriend complained about it not having. There is also a small Arendal logo at.
Owning one of the best multi-effects pedals for guitarists enables you to access a stack of different effects in one single unit. This makes them very attractive to guitarists looking to save space and who might be looking to consolidate a collection that's grown a little out of hand. Once upon a time, even the best multi-effects pedals were seen as perhaps a more inferior option to having individual stomp boxes.
I confirm. So happens. Let's discuss this question. Here or in PM.
Absolutely, he's right