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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6 ohm speakers and 8 ohm receiver
I have a Sony Receiver STR-710 and by specification it's 8 ohm only and output power 6 x 100 Watts . I'm wondering should I buy two pairs of Yamaha NS-777 speakers which are 6 ohm 100/250 Watts.
Will ...
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If I want to use a microphone with a portable mini amp, will a preamp/mixer significantly improve the sound quality? This is for small live gigs
I'm an amateur musician who knows very little about audio equipment, but I'd like to start learning and have my own basic setup so as not to rely completely on the equipment at venues (sometimes they ...
Feanne
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Looking for a compact light-weight Mono power amplifier
I know this is a sourcing-question and these are frowned upon, but I've been searching for a while now, and can't seem to be able to find a compact, light-weight 1-or-2 channel amplifier with balanced ...
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Why do some audio amps use AC while others use DC
In particular I am looking at the JDS Labs Atom and the iFI iCan SE.
The iCan outputs a tremendous amount of power, 4 times that of the Atom, enough to drive speakers; But does so less cleanly, at-...
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What are good amplification methods for percussive fingerstyle (on an acoustic guitar)?
I have a guitar with an active pickup built-in. It works fine in normal playing, but when playing percussive fingerstyle (example below), there are two big issues:
...
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What is Presence?
I got an Ibanez amplifier for my keyboard and there is a dial called 'presence'. What does it do?
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Does a Headphone Amp Increase Output Volume?
I just bought an electronic drumkit and it works great when playing it through a drum kit amplifier. But the volume is too soft when I try playing them through headphones (I know it's not the ...
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How Do You Clean RCA Ports?
I have an old amp which is beginning to show wear and scratches on its RCA ports. However, alcohol, water, and a simple cloth dont work and cannot remove the grime on the ports. What is the best ...
user7343
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Impedance for amp and speaker combo
I have a set of speakers rated at 6ohms impedance and handle 75W, but my amp says 8 ohms or more. Does this mean I need to buy a 2ohm resistor for each speaker? Or just not turn it up loud? Or play it ...
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Help me understand Class-D amplifier intrinsic noise
Introduction
I've recently entered the prosumer/pro audio market by buying JBL LSR305 studio monitors and noticed that the tweeters produce constant high-pitched noise (most people apparently call it ...
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What makes a headphone monitoring amplifier so expensive? any tips for alternatives?
I was looking for some simple headphone amplifiers for translation booths, to give the translators the ability to adjust the volume of their headphones. No need for super Hi-Fi quality in a relatively ...
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Powered Amp placement in a smaller church setting
I am helping to replace an audio system in a small church setting. The building is rectangular 40' wide and 65' - 70' long.
Currently the powered amp is located in the sound booth at the back of the ...
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Troubleshooting amp clicking and muting the speakers
I am trying to use an old amp (marantz pm47 - nominal 40 watts per channel into 8Ω) with a pair of speakers (Kef Coda 7 - nominal 10-70W at 6Ω). Every so often it clicks (the same like the power-up ...
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Guitar amp sound distorted when miked up
I am trying to understand an issue I have when I record tubed guitar amps on the distortion channel with a standard SM57.
I always feel like my miked sound is much more distorted than the actual ...
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Amplitube VST won't respond to MIDI PC messages from Ableton Live
I have been dealing with this problem for a few months now without any success and I was wondering if anyone has ran into this issue. The scenario I'm about to describe used to work flawlessly ...
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How to setup microphone with pre-amp for general purpose PC input use as well as audio recording?
I'm trying to get a multipurpose audio setup going on my PC which could include but isn't limited to audio recording and VOIP (gaming, streaming, skype, etc.).
I have a Focusrite Scarlett 6i6 pre-...
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What is the best shape for passive sound amplification
I'm asking this to make a passive sound amplifiyer. In the web they usually do a HORN shape that looks like exponential function mirrored about 'x' axes. But I wonder is there a better shape for ...
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Amplifier Power Ratings
I want to understand the rating of my Marantz PM6002 amp.
The backplate says:
System 1: 4 - 16 Ohms
System 2: 4 - 16 Ohms
1 + 2 : 8 - 16 Ohms
So looking at the backplate, am I within the stated ...
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Why aren't amplifiers aimed AWAY from the audience on live shows?
We all know the problems it causes for the sound engineer at concerts when the guitarist raises the volume mid show. "It goes to 11"
But why are amps always behind the artists aimed out at ...
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Why do we need power amplifier with hundred watts of power?
For normal home audio systems, the speakers usually have sensitivities around 85~90 dB. So according to the sound pressure chart, it's pretty loud already at 1 Watt of power. Then why do audio ...
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What is the difference between DAC, Sound Card and AMP?
I am looking for a hardware to plug-in the headphones (Beyerdynamic DT770 PRO 250 Ohm).
1) What is the difference between DAC, Sound Card and AMP?
I'm wondering about clear difference between these ...
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How do the outputs on this audio interface work?
I don't know much about audio interfaces and how they work.
I'm looking at the Line 6 AMPLIFi TT and I have have two questions about the outputs.
If an interface has an "AMP OUT" like this one does,...
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How to fix loud thunderous noise from Peavey PA system?
I am having a severe problem with my Peavey PA system.
After connecting all the system components together, the PA system is left ON:
A loud continuous noise of distortion starts coming out of the ...
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What happens when the output impedance of a headphone amp is higher than the input impedance of the headphones?
I'm trying to wrap my head around input- and output impedances. From this question I learned that the output impedance of a headphone amplifier should be lower than the input impedance of the ...
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Label on speaker reads "120W(MUSIC), 60W(DIN)." What does this mean?
I have 2 (old and crappy) speakers I want to hook up to an amplifier and need to know the wattage. What does "120W(music), 60W(DIN)" mean?
N.B. - I am using the speakers as part of a PA system to ...
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Using home cinema speakers with desktop audio interface
I would like to match four speakers left from an old Philips LX3600D home cinema system with my Komplete Audio 6 interface. When I test the levels with crocodile clips I get a very low intensity sound ...
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Amplifier + Speakers setup
I have a noob question about an amp/speaker setup that I would like to buy.
I currently have a Behringer EUROPOWER EP2000 amplifier with two passive Behringer EUROLIVE B212XL speakers. The amplifier ...
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Connecting multiple speakers to a stereo amplifier? [closed]
Can it damage a stereo amplifier to connect multiple speakers into a single channel, playing at full or high volume?
As an example, consider the Cambridge A1:
Input Impedance: 47k ohms
Loudspeaker ...
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How to protect an amplifier from blowing an internal fuse
At the last gig I played the guitarists amplifier head blew a mains fuse and we didn't have a replacement.
We've learned our lesson about having spare fuses, sufficed to say.
Thankfully we had a ...
jammypeach
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Left channel dropped on TA-5650
I have a TA-5650 VFET amp. It has worked great for years, but every once in a while it would drop the left channel. A few times now I have blown the case out with air and the problem has gone away ...
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Amp for live music/sound design?
Hi folks. This question may seem a bit off topic, (but it's sound designy, I promise!) I value the opinions here, and I wonder if anyone with a background in sound reinforcement has any advice.
I ...
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Why does this balanced/unbalanced setup work?
I've just learned about balanced and unbalanced audio connections and so I started trying to figure out which pieces of my equipment have what.
My Roland U-220 sound module appears to have unbalanced ...
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Combining multiple Speakers Impedance - what is the preffered way?
I'm building a custom sound system using the HiFi Berry Amp2 which claims to [...] "work with all speakers or 4-8 Ohm impedance. It supports sample rates from 44.1-192kHz (16-32bit)." According to ...
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How to check used amplifiers?
When buying used amplifiers: Is there a way to check if they are still working, are in good condition and will not die at the next possibility? Checking used speakers is easy, but I have no idea how ...
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Focusrite Scarlett 2i4 to my Bass Amp. How to connect?
I want to modify a bit more my bass sound by using the amplitube VST before sending it to my amp.
The scarlett 2i4 has RCA outputs, and my bass amp (Ampeg BA108) has a CD input (RCA) and effect loop ...
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Can I run a mixer off a battery?
I am in India, and there's no RadioShack equivalent here ... running to the corner store isn't an option to get components. If I need to get components I'll have to order them online.
So. My question:...
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Using Mac/PC as an amp modeler and recorder
I'm trying to use a software called "Amplitube" as a guitar amplifier on a macbook air. However I'm really confused.
I used to have a mac with both a mic input and sound output jacks so I simply ...
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Resonator guitar pickup
I bought an used resonator guitar from eBay, and I found out it has some kind of pickup.
A pickup is a nice-to-have feature, no must-feature.
I have not seen a pickup like this before. It has no ...
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Wiring an 120W amp head to the box (stereo)
I have a 120W amp head which has two outputs in the back and a switch for 16/8/4 Ω.
In the instructions there is a table which is not perfectly clear to me. Does "1x 16Ω" mean one speaker of 16Ω or ...
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How to make the most of my FX Loop send/return?
I have a Hughes & Kettner Statesman Quad EL84 tube amp, and one of the nice features it has is an FX send and return. From what I understand, this feature allows me to add effects to the end of ...
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Not enough power to run speakers at 60ft distance?
I am trying to move my powered mixer to the back of a building. The wires have to travel 60ft to the mic's and speakers at the front of the building. When I tried this I could not get sound to come ...
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Can I put a powered amp inside a water/air-tight enclosure?
For a semi-permanent outdoor installation I need to waterproof a powered amplifier. (We opted against marine amplifiers for audio-input quality, and power-supply reasons)
What happens if I put a ...
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All-in-one CD-receiver vs. component receiver
I am looking for a music system for my living room. I haven't been really listening to the music at home for years (only going to classical music concerts), and now want to bring it back into my life. ...
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240 Hz 'noise' coming from speaker
I have an annoying little noise that is constantly emanating from my speakers. At first upon Googling I thought it was the usual hum, hiss, or whatever sounds that is the by-product of a normal audio ...
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How to prevent PA system from sound interference
I have recently brought a new PA amplifier and new cables as my old amplifier took RCA and this new one takes XLR, so when my new amplifier arrived I set it up like normal and realised there is a ...
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Amplifier output doubt
So I've been into sound for a while, but there's just one thing that goes over my head. I'll use an example.
Say you have an amplifier, in which datasheet it is specified that it outputs 300
watts ...
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Why does digital sound EQ use decibels instead of an amplitude multiplier?
I'm in the painful process of figuring out a nice eq and then discovering that it makes things too loud causing overdrive, so I need to convert my old +xdb to 0db and my old 0db to -ydb. This is not a ...
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How do I connect an amplifier to a PC?
I have a guitar amplifier and I am wondering if I could connect any of its outputs to a PC microphone input on the motherboard through a 6.3 mm. to 3.5 mm. adapter. Or it will not work and ...
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Connect XLR microphone to amplifier
I am not able to get sound output from my microphone. How do I Connect my XLR microphone to the amplifier. The amplifier does not have a mic input. Which slot do I use in that case. Amplifier is ...
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What is the difference of having one speaker per output vs many speakers on one output
Let's say there is an amplifier with two outputs, expecting 4 ohm impedance. One will wire two speakers one on each output with the corresponding impedance (4ohm). Everything is correct here.
But ...
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