Questions tagged [amplifier]

An amplifier is a device for taking a signal level electrical signal and increases it to a level that can be used to power a speaker

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1answer
7k views

Matching amplifier with speaker with unknown wattage [closed]

I found some old speakers laying around without amplifier. I would like to buy a amplifier board but i do not know the wattage and ohms of the speaker. The wattage etc is not written on the back of ...
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1answer
90 views

Line-In Mixer very quiet [closed]

I bought the Rolls MX42 Stereo Mixer to mix the output of multiple devices together. I have connected my Computer (internal soundcard), Laptop, and Phone. All by using 3,5mm Jack to 2 Cinch y-Adapter ...
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1answer
108 views

Speak - amplifier wattage matching

Is there any rule-of-thumb for choosing amplifier wattage for the given speakers wattage? Say I have speakers, 100 W (maximum input power) / 6 Ohm each. Is it ok to match them with 44 W (minimum ...
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1answer
1k views

Troubleshooting gain problems between microphone and amp

I have a micropohone and an amp, both of which I was recommended; I bought the former, because that was the cheapest option to experiment with. Unfortunately, the two appear mismatched, since I have ...
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2answers
268 views

Sending bass from VST to bass amp

Our keyboard player plays bass on keyboard. This is going through MIDI to a Steinberg UR22 interface and is then hooked up with a standard Kontakt 5 libary to create bass sound from the MIDI notes. ...
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1answer
3k views

RCA in to a Microphone Input

I am trying to use a TV as an audio source on an amp. The amp only has 2 sets of RCA inputs while the other 3 inputs are mic jacks. The mic hacks have a switch over them that selects between - "line"...
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2answers
81 views

Need help finding a audio amp

first of all I'm a newbie to the whole audio thing. For the longest time I have been using a pair of speakers with a self build amp (not build by me, but a friend) and I'm using it solely in ...
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1answer
49 views

Amp optical in with stereo cable out [closed]

I've got a tv in my outdoor area as well as some stereo speakers built into the roof. There are stereo cables which lead from the speakers to where the tv is. I recently bought a budget amp which was ...
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2answers
2k views

Optimal Headphone Amps volume settings?

I use a headphone amps with my Mac Book Air, there are two volume controls in this setup: one is the Mac Book Air, and the other one is the amp. What should be the optimal settings for both volumes? ...
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1answer
1k views

Difference between internal sound card and Audio interface in simple setups

A set up consists of a single instrument that is guitar and a recording software like pro tools along with amplitube as the guitar effects. Is there a difference between using the internal mac sound ...
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2answers
187 views

Amp Syncing Problem

What would cause an amp to all of a sudden start sending a signal at a higher pitch and a faster speed? The System: Base System Dell PC w/ SFX 5.60 build 24 -> echo gina 24/96 -> a&h ...
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1answer
26 views

Is it safe to play/drive a speaker(60w, 8ohm) with a connection from 3.5mm jack

Here are the details. My guitar amplifier is a combo amp which means it has a built in speaker. The speaker is 12 inches and is rated at max power of 60w and has impedance of 8ohms. The amp also ...
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1answer
19 views

How do I power a Yamaha EMX5?

I know basically nothing with about audio engineering and need some help. I just recently bought a Yamaha emx5 powered mixer. What is the best way to protect it from a power surge? Do I need a power ...
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1answer
219 views

rhythm guitar sound on 'only tomorrow' (my bloody valentine) (pedals?amps?guitars?mic placement? etc.)

i'm mostly active on stack overflow, but as i like the overall platform/concept so much i figured i'd give this here a try! basically, my question is in the title, and here's a link to the song: ...
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1answer
303 views

Why am I hearing weird static nosie on my speakers

Our Church uses Yamaha CM 12V speakers for monitor, powered by QSC GX5 amps. Every 3 to 5 minutes once we hear a weird buzzing static noise from the speakers. The noise will be loud, and will last ...
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2answers
867 views

What difference does impedance, watts and sensitivity really do?

I'd like to learn about watts, impedance and sensitivity. I've googled so many times, but never found a clean and nice answer, so it would be really awesome if someone made it simple and clear to me. ...
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2answers
2k views

Practical difference between channel gain, fader and amp gain

Why do channel gain, fader and amp gain all seem to affect the sound differently, particularly when it comes to feedback? Is this just a placebo effect? Is it a symptom that something is connected ...
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1answer
1k views

Correct Amplifier Rating for Klipsch RP-150M Speakers [closed]

I am looking into buy a pair of bookshelf speakers, and have narrowed the field down to a pair of Klipsch RP-150Ms. However, before I purchase them, I would like to know if the amplifier/receiver I ...
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1answer
69 views

Is the perceived power of 2x60W the same as 1x120W?

I have a guitar amplifier which is rated at 120w (solid state). It has two outputs (A & B) both of 60W each. If I were to run both of these outputs into a 2x12 cabinet in stereo (output A to ...
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1answer
343 views

Carver amp/receiver speaker problem

I have a Carver amp/receiver withy phono, cd and tape inputs, two sets of speakers A and B. From time to time the right speakers (or the left) will simply go out. What is wrong?
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3answers
85 views

How are tube amps constructed?

need a Little HISTORY about Tube Amplifiers or Tube Sound, need Signal Processing theory of the same, Its Schematics and importantly need how it is RE-Modeled into a DSP Plugin. (either by ...
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2answers
60 views

amp for a viewing room

Hi guys I'm starting work at a film production company and they asked me to source an amp for playback in the edit suite for playback of the project to the director, producers and investors. Which ...
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1answer
39 views

Why has my amplifier different sample rates for usb and spdif?

I have an emotiva ta-100 amplifier with 96khz/24bit usb and 192khz/24bit spdif. I always assumed it uses the same dac for both, so why does it have different sample rates for each input? I could ...
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2answers
364 views

Unbalanced Line Level vs Balanced Microphone Level [closed]

So, I'm trying to digitise some vinyls. I have a big amplifier, and I might just use the preamp in that, but I might instead get the Radial J33. The Radial J33 is a phono preamp, but it has both RCA ...
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1answer
47 views

How to even speach loudness?

I am working with a recording (some speach) where it has parts with different loudness (amplitude) so I would like to make all those parts evenly loud. Actualy, I would like to make every word spoken ...
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1answer
193 views

Noise reduction on a guitar amplifier over a voltage regulator

I'm new to the community and I'm not sure this is the place to be asking, but it seemed reasonable to give it a shot. Also I'm not an electrical engineer so I'm not familiar with the English jargon. ...
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1answer
232 views

What is added by using a guitar amp over just pedals?

For instance, both pedals and amps can produce overdrive / distortion, though perhaps different flavors. Is there something that only an amp can produce? What is it? Do amp sim pedals approximate it ...
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2answers
119 views

How to use a wireless mic with computer mini speakers for trade show

Working at our booth at a trade show, behind a table. I need gentle amplification to augment my voice when talking across the table to an handful of attendees. (Show floors are noisy!) I have a ...
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1answer
73 views

undesired interaction between multiple inputs to PA system

I'm using a 250W Fender Passport PA system (model P-250) with a vocal mic (MP-75) and an electric bass guitar hooked up to separate channels (e.g. mic to MIC-1 and bass to LINE-2). When both are ...
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1answer
2k views

Which amplifiers have close to zero latency?

I'm a novice. I'd like to route an electric guitar and several keyboards through a computer for effects processing, and out via the same speakers. I've tried using different home sound systems; but ...
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2answers
2k views

Headset amplifier (headphone amplifier with mic preamp)

I have and m-audio 24/96 soundcard with one RCA-out and one RCA-in pair. I want to connect a headphone with a separate mic (modmic) to this audio card. Now I need a nice headphone amplifier I get ...
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2answers
1k views

Cable vs wireless connection from amplifier to speaker

I would like to understand the implications of wired versus wireless sound signal transmission. Say, the signal originates from a source and arrives to an amplifier via cable. Is there a difference if ...
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1answer
158 views

Is it safe to convert rca to xlr

I have a pre-amplifier of which the outputs are RCA. Now i want to buy new active speakers but those only have 3pin-XLR input. is it safe for both my amplifier and active speakers just to use a simple ...
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1answer
200 views

Dynamic mic to XLR input

I bought this ammoon F4 mixer on Amazon, and I need help connecting a dynamic microphone to it. The mic channels have XLR and TRS inputs. The TRS is marked "LINE" and it works only with line signal ...
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2answers
522 views

Instrument to sound card and output to guitar amplifier

I want to know your opinion on if it's possible/feasible to input an instrument (guitar, bass...) to a sound card and then output the signal to an actual amplifier (guitar, bass...). Let's suppose the ...
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1answer
206 views

How to get rid of sharp ticks/clicks when amplifying sound

I am amplifying an audio file frame-by-frame via the following algorithm: Find maximum value among all the samples in a frame Find the amplification factor to make the maximum value equal to 0 dB ...
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1answer
118 views

Amplitude Too Low?

I record via USB with a Mackie ProFx16 with Cubase. You can listen if you like: https://soundcloud.com/dacsaunders Now it sounds like the level is too low, is that because I didn't master it? Or ...
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1answer
170 views

For a studio, what kind of speaker system network should one opt for?

For a Film Post Studio what kind of studio speaker network would be good , Active or Passive ? Why ?
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3answers
954 views

Is the Behringer A500 Ultra-linear amplifier a good purchase?

Hi all, At home I monitor on passive Dynaudio Acoustics BM5s, which I like very much. However, as my power amp has broken, I'm looking for a replacement. For the money (~£160) the Behringer A500 ...
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1answer
41 views

How to know if studio monitors are loud enough?

I'm having trouble with my studio monitors (headphones as well). They are JBL 104s, which are pretty affordable entry level speakers. I've got a handful of headphones, typically between 32 ohm and 64 ...
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1answer
87 views

How can I reduce hi-fi amplifier latency?

I've currently got a semi-home-studio cobbled together using bits and pieces that I had lying around. I've noticed that when I play my instrument through speakers, there's noticeable latency, about ...
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1answer
35 views

I am not getting any sound out of my PA system. Did I connect something incorrectly?

I have a NUMARK M6 USB 4 channel mixer with LEFT and RIGHT Balanced XLR output connected to channel 1 and channel 2 of my AUDAC EPA252 power amplifier respectively. My speaker is a passive HYBRID ...
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2answers
54 views

Is it mandatory to let tube amps warming up ? What are the risks of not doing that?

I heard literally everywhere that it is really important to let my amp warming up for some minutes before playing the guitar (or give some audio do the input). Strange thing is that the recommended ...
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2answers
253 views

Calculating noise in dB produced by microphone pre-amplifiers

I need to know whether my pre-amplifier or my microphone is limiting the sound quality (in terms of noise) of my recording setup. The sound recorder (SM2Bat+, Wildlife Acoustics) has a specified ...
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1answer
143 views

Connecting a subwoofer to a 2 channel amplifier [closed]

I'm building a bluetooth speaker, but I'm not satisfacted with the low frequencies, so I decided to add a subwoofer. At the moment I haven't decided which subwoofer exactly, but I'll will be a 4 or 8 ...
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1answer
31 views

How to determine DC Amperes required for Amplifier?

I'm trying to understand if there's any relationship between the rated wattage (RMS) of an audio amplifier and the corresponding power requirements on its power supply. Practically, if I buy an ...
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4answers
150 views

Why is 1000W pro Amp delivering less SPL than 100W cheap amp?

I'm designing an internal sound system for an outdoor sound sculpture. Audio quality is important but volume (sound pressure) is what's most critical in this application. I have auditioned many ...
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1answer
2k views

Does a 64 OHMS Headphones require an amplifier? [closed]

I recently bought a pair of HD7 from Presonus (https://www.presonus.com/products/HD7) which are 2 x 32 ohms headphones. They sound good but not as good as I though they would. Would that be due to ...
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2answers
778 views

It's impossible, how do I get a lightweight, portable, loud busking amp/PA?

Without going really big, I don't know how to do this. So far I use a Roland Mobile AC amplifier. It's just 5 watts, but it sounds beautiful and it's tiny, fits in my backpack, powered by 6AA ...
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2answers
6k views

Connecting guitar amplifier to mixer via headphones out

I have a Peavey Vypyr Tube 60W guitar amp and Yamaha mg10xu mixer. I'd like to mix my amplifier's sound with some background track (which I'm already sending to the mixer correctly) and send ...