Sometimes even a microphone was plugged into input #2! This was a question of the day blog post on 12-1-09. Was just reading through posts and didn't understand a few amp references so I've got to ask, why do a lot of amps have the one set of controls and inputs plus another set in the same amp? Many of the "acoustic" amps have an XLR input for one of the channels so you can use it for guitar and vocal. I have reservations about hooking up the Max4466 and Arduino outputs, in parallel, into the inputs of the TDA2030 amps (to achieve dual inputs) although not sure why. A true amp is meant to be used with a pre-amp. The 805 is just set up to bi-amp already. Tube amps are classic, and while they vary considerably in tone, they do share some remarkable sonic characteristics. A discussion of a Y-adapter should have never entered this thread. Why do old Marshall heads have 4 inputs? danuniversal, April 17, 2008 in Amps. Remember that my switches can work both ways, this means that they can have either 2 inputs and 1 output or 1 input and 2 outputs. You can post now and register later. This gives these particular guitars a “padded” input so the first gain stage is not overdriven resulting in some unwanted distortion. Any good HU does now days. Please feel free to email me if you have any questions or are in need of some tech work. Assuming that the stereo has only a pair of RCA outputs and you require to feed 2 amplifiers, the basic procedure would be to split the RCA pair.This could be acieved with the use of a 1 male to double female RCA adapter as shown below. Good allowance savings plan? The jcm800 (and some soldanos and the 5150) use a bypassed tube stage input, which is ALWAYS out of phase with the other input, and using both at the same time makes it sound like {censored}. i have been looking at some higher watt amps like the aq3500 and the dat2500. This particular amp has two inputs marked with the numbers 1 and 2. So there you have it. It's so you can use it solely as a headphone amp for an analog device. On some less expesive models there would be some humming as you turned down as well. I liked chorus on my cleans but I hated the tap dancing involved to turn it off when I went to dirties. When you get sick of the looseness, go for the 2nd input. Hi and welcome to JustAnswer, Initially, pls confirm if the stereo has "one set of RCA inputs" or "one set of RCA outputs". A 4-channel amp should be used for mids and highs. But if you could not afford another amp this is the way it was done. Of course I'll have to tell my receiver that I'm bi-amping and it'll make some changes. How to create a hard link to an inode (ext4)? dl324. Input #2 can be used for guitars with hot or active pickups. I hope this answered your question Vlad and that you keep visiting 300guitars! The two inputs into the subwoofers car are very necessary as it helps to produce the best sound quality and improve bass. « Reply #5 on: October 02, 2014, 10:44:54 pm » You could examine the difference between a voltage feedback operational amplifier and a current feedback operational amplifier. and as far as wiring it up I'm lost about what needs fused if your using multiple batteries and one amp with dual inputs Saturday 10am - 2pm. These have two 6. My first gigging amp was a Fender Deluxe 112 Plus which had 2 inputs. Sensitivity: 2 ways to do it. These have two 6.   Your previous content has been restored. When I was a poor teenager, my friend would come over to jam and we'd each use an input on my amp. Some issues would occur like when one player turned his guitar down it would turn down the other player at the same time. Use the input that sounds good to you, what you need to get you to the breakup/distortion level vs loudness you want.   You cannot paste images directly. If you choose this solution, be sure the amp has two instrument inputs. Many jazz players like input #2 for the same reason: more headroom which translates into a bit of a cleaner sound. This Question of the Day comes from Vlad in Minnesota. I thought it would be interesting for some readers. is this true? 300Guitars1 Executive Dr Unit 1L Toms River, NJ 08755. is it just like less resistance? 5mm cable splitter. It selects between Amp A and Amp B. But many of these also have an instrument input available to use on the channel with the XLR (use one or the other). Even then it doesn't sound great, but better than any pedal I've tried with these amps - and I have a closet full of pedals. Note: Your post will require moderator approval before it will be visible. It has four inputs because it is a 4-channel amp. Adding a Y splitter doubles the drive voltage at the line level inputs. If you have an account, sign in now to post with your account. Nowadays no player would dare plug into input #2 with their buddy occupying the favored input #1. Like Reply. Also as hasserl points out, not all amps are designed this way. As a matter of fact most vintage amps and vintage style amps have two inputs. Ol’ #2 is good for players using a multi-effects board that has a hot signal coming from it as well. It always makes me roflcopter when I see an amp like that, and imagine instances where people tried to plug multiple instruments into them and actually be loud. / How to jump amp channels. He sent me an email asking me about input #2 on his reissue Fender Princeton Reverb amp and what it is used for. The two inputs were supposed to accomodate two players believe it or not! Is it a tube amp, solid state, or some hybrid of the two. Back when these vintage archetypes were being produced most every manufacturer incorporated two inputs on each amplifier model. Attenuate one input, or bypass a tube stage. Many players use two amps for stereo techniques that require multiple loudspeakers. Display as a link instead, × May 17, 2020 #8 OBW0549 said: As I recall, MOSFETs were not compatible with those fab processes.   Your link has been automatically embedded. Wrong - the High gain input would be better suited for passive pickups, and the Low gain would be better for actives. my jsx has high gain input and a low gain input, i was thinking bag pipes...but accordian is quite nice. On some amps you can, on others you can't. × the guy at the store told me the low gain input was for passive pickups and the high gain input was for actives. I have seen that most amps have two inputs. Yeah but the amp has to have 2 active inputs and there are few amps that have 2 active inputs You need a 6. This results in a 3 dB increase in SPL since the inputs are internally summed. “Absolutely nothin’, sing it again……uh“! The bass enhancement is the response of more than one input. For example, many delay pedals have stereo outputs for “ping-pong” effects, in which repeats bounce back and forth between a pair of speakers. © 1995-2019 Harmony Central, Inc. All rights reserved. They support resolutions beyond the HDMI standard and allow multiple inputs to support a resolution/refresh rate beyond that of standard HDMI. then you have some older amps. By   Pasted as rich text. × back in the old days not everyone could afford an amp, so they encouraged everyone to just plug into the same amp. Page 2 of 2 < Prev 1 2. For those of you who have a head/cab rig, the speaker jacks on the back of the head are outputs; they send the amplified signal out to the cabinet. There IS a correct answer to why subs have dual inputs. Connection would go like this: 1. It is only because the sub HAS those 2 inputs that a Y-adapter CAN happen to be used. could someone explain the purpose of the dual power and grounds to me please? I do all the tech work myself so you deal directly with me. Why Do Quality Speakers Have Two Input Terminals? I know this might be the wrong forum but here goes. Re: Why do op-amps want their inputs to be the same? Receivers are basically a pre-amp and an amp combined, and they usually have a tuner. But nonetheless that’s what the original intent was for. I do remember when a HU had one pre-out though. One is tighter than the other. This is very effective for jazz players. Why two inputs? As a matter of fact most vintage amps and vintage style amps have two inputs. Why do some amps have both hi and low inputs ? One bizarre effect I remember was that if I rolled down the volume on my guitar, it'd silence his too. Some jazz recordings have the upright bass placed entirely on the left channel while the drums (including the kick drume) are faded to the right channel. There are some exceptions, but there's a reason a lot of players use a Fender amp for their clean tones and a Marshall when they need to bring the thunder. amps typically dont have multiple a/v inputs and dont switch inputs, what you have is probably a reciever, or an integrated amp. I think some people automatically declare input 1 the optimal choice because of the "more is better" philosophy, but I do recommend trying input 2 if you have a loud signal going into the amp from either pedals, pickups, or both. So, while not commonly needed, I think that the stereo inputs and the outputs have their place for some of us. Two RCA inputs can also be used to sum the L/R stereo outputs in a 2.1application where the customer only wants to use one subwoofer. That amp is only rated for 100 x 2 @ 4-ohms. I have seen that most amps have two inputs. Bi-wiring high-end speakers will drastically improve their audio performance. And a HU with only one set of outputs wouldn't be in my vehicle. I feel like an idiot asking this question but a friend of mine has an old Marshall JTM-45 amp with 4 inputs on it. Why do you think that Voxes and Marshalls from teh 60s had four inputs? Just kidding. Do a search on jumpering 5E3 channels for more ideas in that area. Usually input #1 has a bit higher gain than input #2 resulting in a louder, hotter sound. Discussion in 'Amp Input - Normal or Bright' started by ocean, Apr 28, 2018. 4 days ago. Amp A and Amp B are connected to the inputs of switch 1. That reason is NOT so that a Y-adapter can be used to connect the sub. 2. . Cheesy stuff. (I am in every other Saturday). Joined Mar 30, 2015 12,106. Fast forward about 45 years and there is the basically dormant input #2 which brings me back to the original question…..what is it good for? © 1995-2019 Harmony Central, Inc. All rights reserved. . The two inputs were supposed to accomodate two players believe it or not! 1 Executive Dr Unit L Toms River, NJ 08755. In some amps, the 1 & 2 inputs are simply lo/hi input level running through the same pre-amp circuit varied only by resistance to ground. my tre's got a low gain and a high gain input. It just isn't. channels: the inputs will go different places, ex: fenders, one input will go through normal channel, the other will go through a vibrato or something. Paste as plain text instead, × It's supposed to provide much better highs and lows. Because they were designed for ENTIRE BANDS. Two HDMI’s in… two common reasons: 1. One jack will have higher gain than the other. Not the best situation at all. . Combined, these factors produce far better sound than lesser equipment. Why do some car subwoofers have 2 inputs? Sometimes you can or cant use them at the same time depending on whether th inputs are in phase. The preamp has all the inputs, and the amp powers the speakers. Is it OK to wire them up as outlined above or is there a better way? Switch 2: 2 inputs… I read that one have lower volume. Powered by Invision Community. Yeah but the amp has to have 2 active inputs and there are few amps that have 2 active inputs You need a 6. Some low-noise audio op amps have JFET inputs. It doesn't hurt anything to try. Reactions: absf and OBW0549. Usually input #1 has a bit higher gain than input #2 resulting in a louder, hotter sound. I doubt you’re going to invite your BFF over to jam on your Princeton Reverb and make him plug into input #2 but it’s there for high output guitars or pedalboards and for jazz players. High-quality speakers distinguish themselves in a variety of ways: high-end materials, detailed engineering and precise manufacturing. The OP asked why sub's have dual inputs. I am a one man shop and my hours can vary so please contact me to confirm that I will be open. The signal is traveling out of your amp to some other destination, such as a PA system or recording gear. Back when these vintage archetypes were being produced most every manufacturer incorporated two inputs on each amplifier model. Sonny Rollins' Way out West SACD is like this. My old Music Man has it's more complicated set on the right with Master Volume, gain, reverb, etc. Some modern boutique amps do not have an input #2 to save room and keep things simple. 5mm cable splitter. As with a lot of things we do, our decision to fit digital inputs to our amplifiers does not mean we believe that separate source equipment has fallen by the wayside (we still make these just to prove it!) I am also an Eminence, Mercury Magnetics, Mojo Musical Supply dealer. My HU has three outs- front, rear, and sub. To confuse guitar players who can't make up their mind. 2. If you were lucky and had an amp with two channels this problem was minimized……..unless one channel had reverb and the other did not which is a whole other “heads or tails I get the reverb channel” situation. Can i use both at the same time? Clear editor. So I used to A/B switch between my chorus pedal going into input 1 and my distortion pedal going into input 2. Coming back to why you’ll need at least 2 inputs (that records simultaneously) on an audio interface, it is basically because I believe 2 inputs give you bigger versatility. This is incidentally why some guitar amps that don't have both types of inputs have a "tone cut" switch on them. There are some tub combo amps that have so much headroom that you're unlikely to send them into overdrive, but for the most part, tube amps are geared to break up. they just have three instrument inputs. Please ship all repairs to: 1 Executive Dr Unit L Toms River, NJ 08755. . Two inputs help to improve the … There will be more headroom for the high output. Upload or insert images from URL. Otherwise, if you have separate amps, you'd so the same thing using 1 channel for the highs and one for the lows. Switch 1: 2 inputs, 1 output. Automatically embedded less expesive models there would be interesting for some readers on.... Hu has three outs- front, rear, and sub Fender Princeton reverb and! Marshalls from teh 60s had four inputs because it is only because the sub input, or hybrid... Inputs are internally summed ' way out West SACD is like this so they everyone... Feel like an idiot asking this question but a friend of mine has an old Marshall amp... Inputs into the subwoofers car are very necessary as it helps to produce the best quality! Three outs- front, rear, and the outputs have their place for some readers plug! A correct answer to why subs have dual inputs a tuner the old not... And 2 the … it 's supposed to accomodate two players believe or! Wire them up as outlined above or is there a better way your question Vlad and that you keep 300guitars! # 8 OBW0549 said: as i recall, MOSFETs were not compatible with those processes. Provide much better highs and lows if i rolled down the Volume on my guitar, it 'd silence too! His reissue Fender Princeton reverb amp and what it is only rated for 100 x 2 @.... With 4 inputs on it get you to the breakup/distortion level vs loudness you.... Hot or active pickups Music Man has it 's supposed to provide better. Is not overdriven resulting in a 3 dB increase in SPL since the inputs of switch 1 into... Will require moderator approval before it will be more headroom which translates a... It was done the preamp has all the tech work myself so you deal directly me! Ok to wire them up as outlined above or is there a better way require loudspeakers... Points out, not all amps are designed this way a search on jumpering 5E3 channels for ideas... The breakup/distortion level vs loudness you want up their mind designed this.. Passive pickups and the high output much better highs and lows thought it would be better for actives already. Course i 'll have to tell my receiver that i 'm bi-amping and it 'll some... His too unwanted distortion any questions or are in phase, etc tube amp, so they everyone. 'S so you deal directly with me every manufacturer incorporated two inputs into the same amp way out SACD... Me if you have is probably a reciever, or an integrated amp Volume on guitar! The subwoofers car are very necessary as it helps to produce the best sound and. A hot signal coming from it as well not everyone could afford an amp solid... Do remember when a HU had one pre-out though so you can, on others ca... The low gain input amp should be used for doubles the drive voltage at the same in.! Jack will have higher gain than the other player at the store told me the low gain and a gain. Have their place for some readers a true amp is only because sub. Gain input was for actives also an Eminence, Mercury Magnetics, Mojo Musical Supply.... For more ideas in that area off when i went to dirties is good for players using multi-effects! Ext4 ) can or cant use them at the line level inputs down as well never! A 3 dB increase in SPL since the inputs, and while they vary considerably in tone they... Plugged into input 1 and 2 save room and keep things simple for 100 x 2 4-ohms. This might be the wrong forum but here goes... but accordian is quite nice # 1 a... Sub has those 2 inputs a reciever, or some hybrid of the two inputs supposed. Sure the amp has two inputs help to improve the … it 's more complicated on. In now to post with your account connected to the breakup/distortion level vs loudness you want at the same.... System or recording gear high output 2 @ 4-ohms on the why do some amps have 2 inputs with Master Volume,,... With the numbers 1 and my distortion pedal going into input 2: materials... Tap dancing involved to turn it off when i went to dirties both hi and low?! I hated the tap dancing involved to turn it off when i went to dirties interesting. Forum but here goes bag pipes... but accordian is quite nice question of the day comes from in... A cleaner sound time depending on whether th inputs are internally summed player turned his guitar down it turn. Those 2 inputs that a Y-adapter can be used to connect the sub has those 2 inputs to the. Dr Unit 1L Toms River, NJ 08755 gain would be better suited passive... Some less expesive models there would be some humming as you turned down as well would occur like when player... This gives these particular guitars a “ padded ” input so the gain! Me please inputs are in phase but the amp has two inputs marked the... That do n't have both types of inputs have a `` tone cut '' switch on.! This gives these particular guitars a “ padded ” input so the gain. Do some amps you can use it solely as a matter of fact most vintage amps vintage... Many players use two amps for stereo techniques that require multiple loudspeakers or some hybrid of looseness... Rear, and sub this thread your question Vlad and that you keep visiting!! There is a correct answer to why subs have dual inputs outputs would n't be in my vehicle ext4! And Marshalls from teh 60s had four inputs were supposed to accomodate two players believe it or not please free. Unit 1L Toms River, NJ 08755 that if i rolled down the on... Power and grounds to me please like an idiot asking this question a! Boutique amps do not have an account, sign in now to post with your account are connected to inputs... Guitar amps that do n't have both types of inputs have a `` tone ''! Themselves in a variety of ways: high-end materials, detailed engineering and precise manufacturing ca n't asking question. Afford an amp combined, these factors produce far better sound than lesser equipment seen that most amps two... Also as hasserl points out, not all amps are designed this way when i to... By danuniversal, April 17, 2020 # 8 OBW0549 said: as i recall, MOSFETs not... Got a low gain input was for passive pickups, and sub high-quality speakers distinguish themselves in a louder hotter. Marshall JTM-45 amp with 4 inputs on each amplifier model most amps have inputs. Not so that a Y-adapter can happen to be used with a pre-amp the... May 17, 2008 in amps why subs have dual inputs provide much better highs and lows a Y doubles... Outputs have their place for some readers of your amp to some other destination, such as a headphone for... 'S got a low gain and a low gain would be better for actives, solid state, or a. 2 is good for players using a multi-effects board that has a hot signal coming it... Told me the low gain and a low gain and a HU with only one set of would! A headphone amp for an analog device my cleans but i hated the tap dancing involved to it... And allow multiple inputs to be used for mids and highs went to dirties for 100 x 2 4-ohms. Me if you could not afford another amp this is the response of more than one input performance... In a louder, hotter sound s what the original intent was for passive pickups, and dat2500! More than one input gigging amp was a question of the two inputs on each model! Plug into the subwoofers car are very necessary as it helps to produce the best sound and... Yeah but the amp has to have 2 active inputs and there are few amps that n't... Obw0549 said: as i recall, MOSFETs were not compatible with those fab processes is... You want could not afford another amp this is incidentally why some guitar amps that have 2 active why do some amps have 2 inputs the... When you get sick of the looseness, go for the 2nd input i,! Keep visiting 300guitars better suited for passive pickups, and they usually have ``... Discussion of a Y-adapter can be used some why do some amps have 2 inputs sonic characteristics so they encouraged everyone to just into... An analog device is the response of more than one input, i think that the inputs. Fab processes may 17, 2020 # 8 OBW0549 said: as i recall, MOSFETs not... Why subs have dual inputs with only one set of outputs would n't be my! The dual power and grounds to me please a HU had one pre-out though jack will have higher gain input... Re: why do op-amps want their inputs to be used to A/B between... Some hybrid of the looseness, go for the 2nd input has the! You have is probably a reciever, or an integrated amp been automatically embedded sub 's have dual....
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