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18

This is called feedback. Put simply, the microphone hears some sound. It sends it to the amp. The amp sends it to the speaker. Some time has passed. The microphone hears the sound from the speaker (now louder), sends it to the amp, and round-and-round it goes, getting louder each time. After a few goes around the loop, you reach internal limits and ...


13

The noises are caused by electronics picking up wireless signals from your mobile phone and translating the interference into sound. Well-shielded circuits won't have this problem, but it's common in consumer electronics and some musical equipment, notably guitar leads. There's no damage to your equipment, and if the sound is a problem just keep the phone ...


10

It is so the speaker is pointed more towards your head than your feet and so you can hear yourself better. If a small combo-amp is on the ground, the sound has to bounce quite a bit to actually get to your ears and if you are at a band practice or a gig it may mean bandmates can hear you better than you can hear yourself. If your speaker is pointed at your ...


8

A head is simply the name for an amplifier without a speaker. Your friends won't have heads on top of amps, they'll have heads on top of speakers (with the head driving the speaker). The "basic guitar amp" you have at the moment, is probably an amplifier and speaker combined in one cabinet. These are commonly called combos. There are several reasons for ...


8

It is true that a tube amp should not be operated without a load, i.e. without speakers (or a dummy load) connected. Solid state amps don't have that problem. The reason is that (almost) all tube amps use an output transformer, which can produce high voltage peaks if its secondary (output) winding is not connected, because the energy from the primary (from ...


7

Having faced this issue some times, the best reccomendation i can give you is first of all, listen to your recordings in various systems, the more, the best, because if you want the world to listen to it, you can never test every system in the world, so, try as many as you can and try to balance for the best in all the systems. Particularly, one of the best ...


6

I see that you noticed this happens usually with the bass amp, and I don't see an answer addressing bass in particular. I can think of some reasons: Mechanical Coupling Bass amps are isolated from the floor to avoid mechanical coupling. Depending on the venue (stage design, materials, acoustics, etc) floor vibration can cause an array of problems, like ...


5

Another couple of reasons why someone would choose head/speaker over combo : a comparable combo usually weighs more than one or the other, so is harder to hump around (poor old roady).Heads go wrong more frequently than speakers, so carrying a spare head to a gig is better than taking two combos. In defence of the combo, one doesn't need to remember the ...


5

The audio signal coming out of a keyboard has all the same characteristics as the signal coming out of a CD player's line-out socket. For home use you just need the same kind of speakers/amplifier as you would use for a CD player. A hi-fi system, or a pair of powered PC speakers will do the job nicely. The "keyboard equivalent" of a guitar amp -- something ...


4

Just mixing with headphones as recommended in a comment, is a bit risky, since the sound differs quite a lot from what you get with a couple of speakers. Some kind of monitors are definitely recommended. A good pair of monitors is obviously preferable, but the important thing is to know your monitors well. If you have a pair of imperfect monitors, but you ...


4

If you have access to a looper pedal, such as the Boss RC series, they have a line in. Connect the pedal to the looper, and then your MP3 player to the line in of the loop pedal.


3

I'd have thought that merely plugging the player into the input would do the job. The volume can be attenuated via the gain pot on the amp., and also by the volume control on the player. Turn it down initially, as there will be a propensity for lots of sound. The speaker extension output - it may already be switched, and cuts out the internal speakers of the ...


3

I'm going to play devil's advocate here. A PA is a collection of parts. That means you can start out simply and add pieces as the need arises. Here's what I would do: Look at the plastic-bodied powered speakers. They have amps, EQ and one or more inputs. You can begin with only one or two and plug mics directly into them and off you go. If money is an ...


3

In and of itself, the presence of multiple frequencies does not produce any distortion or frequency modulation. The idea of the high frequency waves "riding on" (or being "pushed by") the low frequency waves can be misleading in this context. Intermodulation effects require some non-linearity in the system, i.e. a distortion model. Most the most basic ...


3

"I see another answer explains that the positioning is to "hear yourself better", but this will be hardly the case for bass amps, since those wavelengths are not very directional. Bass amp isolation from the floor will make little to no difference; low frequencies, the ones produced by the bass, are omnidirectional (unless a special system is used, which is ...


3

I have never used the Yamaha YDPS51 before, but I have connect powered speakers to my Casio and Korg headphone jacks and it has worked fine. The simple answer to your question is yes, it is safe and worth a try. Although you might experience a loss in sound quality or even a distorted sound due to impedance mismatch. It also depends on the kind of speakers ...


3

Defer this decision until you know where you're going to play. I'm going to assume you have an acoustic drumkit, which you won't be mic'ing up. So the drums set a baseline volume which the other instruments and voices need to match. You actually don't need much to achieve this. The guitarist just needs a modest amp - one step up from a practice amp, ...


3

The replacements would appear to be black widows, 15", 8 ohms, with more power capacity than the originals, which should also be black widows. Good speakers ! First check the drivers out of circuit, using a small battery. 9v will do. When it's connected to the speaker, the cone should move out or in. If not, it needs changing. If it moves, it should either ...


2

Recording studios used to have (not sure if they still do) a set of 'ordinary' speakers to play back final mixes through. They were the sort that Mr. Average would have in his front room.Hi-fi, but not state of the art, just a fair sound. A bit like i-pods produce now.The eq. would be set flat. If your speakers already produce lots of bass, I can't ...


2

Take the front grille off and do a visual. Ancient speakers often have the rubber "surround" (which holds the cone to the internal faceplate) crumble into dust. Luckily, it's easy to get replacements in kits which include detailed instructions, matching glue, etc. I fixed my Advent speakers this way.


2

The above two answers are correct, however, here is some more details: It's called electrostatic interference. It's caused by unbalanced cables picking up radio waves, basically acting as a radio antenna. If you are using an amplifier or a loud speaker this may be fixed by running a balanced cable instead or an unbalanced cable. If you go to purchase one ...


2

Mainly, you should consider the number of inputs, as well as the wattage. You mentioned that you have a pianist, electric guitarist, bassist, and drummer, who all share vocals. So first and foremost, you're going to need at least 4 mic inputs, as well as 3 quarter inch inputs, if your guitar players and pianists are going to be plugged directly into the PA ...


2

Hold on for now - things may change, you may decide that actually two mics will suffice, since you could share, no need to mic up drums/gtr/bass, etc. Use two or three rehearsal studios, and try out their gear. Talk to the guys there to get some more ideas.I'm going to disagree with slim and state that you shouldn't need monitors. Place a p.a. right, use ...


2

An effective way to have noise-isolating headphones is to use earphones under industrial muffs. You don't specify whether they are to stop others hearing what you're listening to, or to stop extraneous noise getting to your ears, but this will work either way.Obviously, full size headphones won't do it, but smaller, good quality in-ear phones will. The ...


2

This is what the impedance spec refers to: http://en.wikipedia.org/wiki/Electrical_impedance It's nothing to do with sound isolation. I doubt there is any spec that can accurately represent the level of sound isolation. This is because the level of isolation is almost entirely dependent on the fit; How well they fit to your particular head shape and the ...


1

The outputs of the DDJ-SB are RCA, and the inputs of the BX5 D2 are XLR and TRS (you can use either). You can use a cable with a pair of RCA males and a pair of XLR or 1/4" TS (you use TS instead of TRS because the DDJ-SB's output is unbalanced). Like this one or a pair of this one. You can also use a dual RCA male - dual RCA male cable and use a pair of ...


1

Heads are the amplifiers, the actual part of the signal chain that increases the power of a signal. Speakers convert that power to moving some physical apparatus (e.g. sheet of paper) that vibrates the air, making sound. So like Bob said, people don't put heads on top of amps, but rather speakers. The amp itself doesn't make sound. In fact, if you're using ...


1

The effects loop on a guitar amplifier is between the preamp (where the gain and EQ controls sit to modify the tone) and the power amplifier (which pretty much just makes everything louder). Your specific amplifier has a multi-channel tube preamp with a solid state power amp. As your amplifier has an effects loop, you can feed a non-guitar input in through ...


1

You can take a passive DI box and run it backwards, or get a specialized box called a ReAmp to do this.


1

I have had this exact problem myself. Here's what I've done, whcih seemed to work : 1) Buy a pair of "best you can afford" monitors. You need something decent to be able to hear the detail of what you're doing. Which ones? Depends on your budget and maybe the kind fo thing you're recording. 2) Buy a pair of crap speakers. I use cheap computer speakers, ...



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