In a perfect condition, the load would be purely resistive, but due to motors in factories and houses, the load is in fact inductive. A difference of phase appears between the power in the grid and the power in the load. Resistive attenuators work by using a network of resistors that takes in the amp's power, saves some for your speakers, and releases the extra energy as heat. The resistive values of the balanced-T circuit are firstly calculated as . It's not a 100% efficient system so some of the power generates heat. Kamanda~SD. Not only OP should get a 2 ohm attenuator, you need to be careful in the cable connecting the amp to the attenuator and from the attenuator to the speaker. A few observations along the way. Reactive Power Splitters are constructed in two designs, either the Wilkinson design or the toroidal design. Either it is a full load, or you can plug a speaker in to it and bypass the load entirely. Power Attenuator. Thread starter GreatGreen; Start date Feb 5, 2020; GreatGreen Power User. 2) there are simple "boring" attenuators, very good ones, and anything in between,you choose. This allows you to play your tube amp without a speaker cabinet. Feb 6, 2016 . Fantastic design, something the new Boss Waza Tube Amp Expander does as well. The resulting signal itself isn't very useful without any sort of speaker cabinet emulation. A load is used in most attenuator designs, regardless if they are passive or active. The first is that it changes the tone, and the second is that it changes the feel and dynamics. Loaded with a 'silent speaker', Weber's most robust attenuator has a main volume knob and three-position treble compensation switch. two notes has some very good attenuator/load boxes with the small torpedo captors. AT-30E. The reactive load simulates the impedence response curve of a speaker. 15dB Resistive Attenuator DC-6 GHz 2W 4.3-10 Indoor Login to view price & order. Whether the reactive load box or the speaker cabinet is providing the resistive load doesn't matter, as long as it's being applied. I have a CAB M as well for silent recording and headphone playing. two notes torpedo captor. On the grid, electricity power is supplied with an AC signal. A speaker, or even just the motor of the speaker, has inductance and resistance. What's different about the Suhr Reactive load versus existing products is that the reactive load technology represents your guitar amp signal as accurately as possible without loosing the dynamics commonly found from resistive loads. I had the Alex attenuator, Powerstation V1 and a custom attenuator made by Cameron. If you are looking strictly for a load box, the Palmer is only a better choice if you may require the built in speaker emulation filter. Table of Contents. I'm bumping this because I'd like to hear from someone who can explain the difference between a resistive vs. reactive load's effect on the OT. The DI output is tapped off before the load, with a simple voltage divider. Reactive Power Splitters consist of single input and multiple (two or more) outputs. Of the two, resistive loads are far more common. Kapo_Polenton 05.16.2022. The size and length of the cable becomes a lot more important. Reactive is much better in terms of feel and eq response,, though, I'll say the Two Notes VB-101 had some voodoo going on with it's resistive load because it felt great, just a little hyped in the top end due to the load correction. Buy this product as Renewed and save $35.62 off the current New price. Also, the Palmer requires a separate model for 8 or 16 ohms, where the Rivera is switchable. . It provides an 8 load for your tube amplifier (maximum 100 watts), and . The problem is, a resistive load changes the frequency response and dynamics of a tube amp, as far as guitarists are concerned. 2 Boss Waza Tube Amp Expander (11) New from $1,338.99 Used from $850 Resistive Attenuators Attenuators have been around since the 1970s, and the first models were purely resistive. The more you attenuate, the flatter the sound and feel gets because they don't replicate the impedance curve of speakers. budda Do not criticize as this Contributor Joined Jan 22, 2007 Messages 29,443 Reaction score been looking at the fryette, suhr, universal audio and two notes products. Both are in the same price bracket as the Reload and while they're slightly more oriented towards live use, both would be well worthy of consideration. Radial Engineering ProAV2 . >Randall Aiken >reaiken at ix.netcom.com >1996/01/04 Power in Resistive and Reactive AC Circuits. Passive resistor networks fulfil two functions. It's the only attenuator which does this. The impedence load interacts with the output transformer. impedance is usually measured at 400Hz, and can vary widely over the. The bottom line, however, is always "how does it sound?" There are two common complaints. Feb 5, 2020 #1 Has anybody run a rig like this? i am currently looking for a reactive load box/attenuator. The bright, deep and light bulb switches let you select exactly how reactive it is, and in which frequency ranges and dynamic ranges the reactance is most prevalent, but no matter how you set it, it is always reactive in all attenuation modes and in the "Load" setting as well. Based on that, adding a "regular" resistive attenuator, you can build a device which both provides . This complexity comes at a higher cost, however, typically in the $200 - $300 range. So, has anyone else come across this, or, am I just hallucinating? Pros Reactive/resistive active attenuation gives the playing feel and sound of a real amp. A resistor is a resistor and will remain constant with frequency (for the most part). Instead, an electrical fan or lightbulbs can be used to add reactance to resistive load attenuators, and since they are powered by the amp signal . For T-pad attenuators that have reactive components such as inductors and capacitors . The load can be as simple as a single component or multiple . At home I have some 20watt el84 heads, and I got a Weber MiniMass 50w to go with them. An Inductive attenator would have inductive reactance, and might be useful in amplifier work because it would emulate a load caused by a speaker. I've blown 30 watt Celestion speakers while running two 4x12's. H. TAD Silencer, reactive load, with a cool infinity attenuate feature for late night playing . The. frequency range. But I understand your hesitation on that. The problem with a purely resistive load is that they don't sound very good at all. Triple Jim said: I normally buy a couple power resistors, mount them on an aluminum plate as a heat sink, add a switch, and mount them inside the back of the amp. Those with an odd number of output ports are called as N way power splitters. Use 12 gauge monster type of cable, they sell it in Guitar Center. Reactive. 20dB Resistive Attenuator DC-6 GHz 2W 4.3-10 Indoor Login to view price & order. This can be both heard and felt. A lot of people think that by using a (reactive/resistive) load box with line out and go straight into a AD convertor (or their computer sound . After 10 minutes all got stupid hot. The stated. Weber Mass. These are the cheapest ones, just a network of power resistors. ATTENUATOR LOAD TYPES: NON-REACTIVE AND REACTIVE . The LIVE is a reactive (rather than resistive) load, and you can modify your sound a number of ways, including with 8 mike simulations and with IR cabs. I remember hearing about someone using light bulbs (lamps) as attenuators back in the day. - At this point, the resistive load is being applied via the speaker cabinet, and the audio signal can be routed. The argument that the Mass is different is logical, though what it sounds like may or may not warrant the difference. What you hear coming off of the tap is the transformer reacting to the reactive load. Reactive load boxes, on the other hand, are a bit more complex. they also have some very good rack mount units that do it all pretty much. 1) the proper way to attenute is amp > attenuator > speaker. Impedance options are 2, 4, 8 and 16 ohms, and the attenuation is continuously adjustable from -3dB to over -70db. Another aspect of this discussion that is worth mentioning is that the absolute safest load for any amplifier is one that is 100% resistive with no reactive element at all. A reactive load is generally more expensive than a passive resistor based load, but some players feel that it provides results closer an amp pushing a speaker. In a guitar amp, the load is the speaker. The line out has a bypassable three-band tone stack and separate volume control. Attenuator loads fit into two categories: Resistive. Resistive attenuators and loads eliminate that impedance curve. The Studio offers much more. Mostly the weber mini mass and the Jet city Jettenuator. An attenuator is step one, I like the Two Notes Captor because it's a loadbox, Attenuator, DI out and Headphone Tap. >I have not used any of the newer reactive attenuators, so I cannot comment on their tone, but I have used this type of reactive circuit as a dummy load to feed a mixer for recording, and there is a big difference in the tone you get between this type load and a straight resistive load. 3) in my view, others may disagree, the best reactive load is Randall Aikens , google it. These are used in antenna systems, for example, where the . At max attenuation, you can use it as a load box. A reactive load or reactive attenuator lowers or completely loads down an amp's output while maintaining the impedance curve, making the amp feel, sound, and respond similarly to when it's connected directly to a cabinet. Loudest amp I've ever played. A: A resistive load is not any worse than a speaker load or reactive attenuator load. These load boxes contain a network of resistors and capacitors designed to emulate the impedance curve of a speaker. There are a few very fine units of this type on the market right now. That's why the Weber uses speaker voice coils - to match the inductance of actual speakers. Bad Cat Unleash Guitar Power Attenuator. The Suhr Reactive Load delivers a simple solution to capture all of the warmth, and dynamics of your sound, without the hassle of miking a speaker cabinet during a live or recorded performance. Loads can be categorized as non-reactive or reactive. Headphones or nothing for the most part, at least that was my experience. Resistive vs Reactive Loads. Here is the (edited) original post: A speaker presents a varying impedance load to the amp. It's using the power from the tube amp to move the voice coil and produce sound. It'd be a reactive load rather than resistive. But since the grunt of the signal is absorb by the initial reactive load and the series resistance interact with the speaker reactance, response is maintained both from the speaker and the amp's point of view. It's the only attenuator which does this. 30dB Resistive Attenuator DC-6 GHz 2W 4.3-10 Indoor Login to view price & order. Consider a circuit for a single-phase AC power system, where a 120 volt, 60 Hz AC voltage source is delivering power to a resistive load: (Figure below) AC source drives a purely resistive load. There is a reason the Torpedo thing kicked off by all guitar guys that didn't know IRs existed: The reactive load in the thing makes it better to play (and the usability means even non-computer guys could use it, still way too expensive though). The cheaper ones are purely resistive so the more you attenuate the duller the tone gets. Speakers generally have a large resonant peak that. Ideal for tube amps up to 30 watts, and pedalboard friendly, this petite version of the company's 100-watt unit attenuates your amp's volume with the very same reactive load and transformer-coupled tech. Two Notes Torpedo Captor Guitar Power Attenuator. It'd have to be automotive lamps rather than standard house lamps, due to the voltages and wattages in question. "Take these three items, some WD-40, a vise grip, and a roll of duct tape. They present the amp with a resistive load with the same rating as the speaker and they convert electrical energy into heat. It has a high cut function which corrects for some of the top end loss that commonly occurs with attenuators. Gold Supporting Member. The power dissipated at the load would be . The only thing is that scaling this to multiple attenuation levels would be quite complex so it still uses resistive l-pads to go quieter. In electronics, a "load" is a part of a circuit that dissipates power and does some work. For a bass player, this means it can produce results that are similar to an amp driving a speaker cabinet, something a resistive load box cannot achieve. I know a speaker's impedance and hence it's reactive load is all over the place whereas a resistive load- as in a cheap attenuator- is set at 4, 8 or 16 ohms. . - The Suhr RL IR box has two channel pathways: a dry, and a wet. Talent hits a target no one else can hit; Genius hits a target no one else can see. Most combo amps have internal speakers that can be unplugged from the amp chassis using a 1/4 phone plug. I usually calculate the resistors to give me 1/2 a watt on the low switch position and full power on the other position, but you can pick resistors for any attenuation you like. can be as much as 5 times the rated impedance, or even higher. So the amp still sees a reactive load even though it isn't coming from the attenuator. Jun 25, 2022 #6 itsGiusto Tele-Afflicted Joined Dec 31, 2017 A taper pad attenuator connected to a load impedance of 50 is required to reduce the level of an audio signal by 18dB from an impedance source of 75. For one, I don't think an attenuator is going to be your solution in a dorm. There are two problems with this approach - first, the resistor ladder itself can become a part of the load, which means that the amplifier sees a simple resistive load. Either type can be safe for your amp and can provide great results. The Power Soak is indeed legendary, it's the source of all the "Dude, you gonna blow your amp up!" They are simple by design and therefore, generally less expensive, many of which come in the form of a DI Box. The Fryette is also a reactive load, compared to most attenuators that are resistive loads. 100-watt Precision-compensated Reactive Power Attenuator with DI Output, Analog Cabinet Simulation, Dual Impedance Controls, Solo Mode, Presence Switch, Bypass Mode, and Line Output $795.00 Or $23.00/month with 36 mo. With built-in 50 W power tubes (6L6 power tubes) The power station can be mainly used for three applications: Power reduction of powerful amplifiers without the disadvantages of conventional power attenuators; as a gain for small amps; and as a high-quality, adjustable reactive load for silent recording Keep in mind my Plexi is freaking loud. The main difference to be noted between resistive and reactive load attenuators is the fact that a reactive attenuator lowers the amp's output while maintaining its impedance curve. As a result, the tone and feel of the whole rig changes. AT-15E. . Second, in dividing the power this way, a voltage divider is effectively formed between the dividing network and the speaker. It's a great reactive load coupled with a tube power amp reamping it. 2 ohm load is a lot lower than the normal 8 ohm load. The Reactive Load takes the place of your speaker cabinet in your signal chain. TONE KING $395 Buy Now PS1 Power Soak AR-03E. The bright, deep and light bulb switches let you select exactly how reactive it is, and in which frequency ranges and dynamic ranges the reactance is most prevalent, but no matter how you set it, it is always reactive in all attenuation modes and in the "Load" setting as well. . Two Notes Torpedo Captor Reactive Loadbox DI and Attenuator - 8 Ohm (Renewed) $234.37. Non-reactive loads. Now we can route the signal. Tube Amp -> Reactive Load -> SS Amp -> Cab. In theory, it ought to work. Your amp is 100% loaded down to line level when using it, and then amplified up again with teh internal amp. Step 2 is a volume pedal in the FX loop. Resistive load boxes are made of up resistors that take in the power being output by the amp and release it as heat. COMBO AMP: When using an attenuator with a combo amp, place the unit between the amp's speaker out and the speaker itself. A Nonreactive attenuator would appear to the source as a purely resistive load, that is no inductive or capacitive reactance, only resistance. In this example, the current to the load would be 2 amps, RMS. Works and looks like new and backed by the Amazon Renewed Guarantee. The Suhr Reactive Load Box or Two Notes . I was planning on using the line out/headphone out woth headphones for dorm use if need be. Brek. One thing about the Airbrake design that may be different from other resistive attenuators is that the speaker is still part of the load. Even many of the supposedly reactive ones don't manage to reproduce the impedance curve of guitar speakers so they mess with the tone too, just less. Contour control lets you tailor the loudspeaker mid-range emphasis. financing* i (14) Compare Universal Audio OX Reactive Amp Attenuator with Speaker Modeling I have an Aracom attenuator which acts as a reactive load box, attenuator and line out. Passive reactive attenuators have a lot in common with the load boxes, with the added requirement to keep control of output impedance as well as input impedance. Today in Plague Scythe Studios, I discuss the applications for amplifier loadboxes, the difference in models, and why everyone with an amp head should own on. Loadbox output sounds really good. "H-pad attenuators". . A few years ago a new breed of attenuators was born: reactive load attenuators. But then again, Ed supposedly used the . They are ideally used for high power cellular applications. In fact, the opposite is true - a purely resistive load dissipates all the amp's power in the load, while a reactive load varies the dissipation between the load and the output tubes, depending on the phase angle of the reactive component of the load. Units like the Bugera or Jet City attenuators are in this category. I'm not attenuating to bedroom volumes either. It essentially means that regardless of the amount of attenuation, your tone will maintain as much transparency as possible. Run a short speaker cable from the output of the amp to the INPUT of the . Just to add, there is a huge difference between using a resistive load vs reactive load too. AT-20E. That's pretty much why a lot of attenuators on the market are not great. The impedance curve that is inherent in a reactive load is thought to be safer for your amp, in addition to sounding better. If I were to buy now I would go with the Captor X and plug it into my 8ohm output. The load is used to absorb either a portion or entire output power of the tube amplifier. UNPLUG the speaker from the amp. June 2016. Rivera RockCrusher Guitar Power Attenuator. The odd thing is that while reactive dummy loads sound better, for attenuators it seems to be the other way round - or at most, there's not much in it and other factors apply - some of the best-sounding attenuators are purely resistive.

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