The Stack Overflow podcast is back! Listen to an interview with our new CEO.

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

Filter by
Sorted by
Tagged with
6
votes
2answers
13k views

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 ...
5
votes
3answers
26k views

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 ...
5
votes
3answers
421 views

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 ...
4
votes
2answers
1k views

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-...
4
votes
4answers
6k views

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: ...
4
votes
2answers
336 views

What is Presence?

I got an Ibanez amplifier for my keyboard and there is a dial called 'presence'. What does it do?
4
votes
2answers
4k views

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 ...
4
votes
1answer
156 views

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 ...
4
votes
1answer
81 views

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 ...
3
votes
5answers
517 views

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 ...
3
votes
1answer
2k views

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 ...
3
votes
1answer
388 views

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 ...
3
votes
3answers
7k views

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 ...
3
votes
1answer
104 views

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 ...
2
votes
2answers
930 views

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 ...
2
votes
2answers
596 views

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,...
2
votes
2answers
7k views

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 ...
2
votes
2answers
2k views

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 ...
2
votes
1answer
433 views

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 ...
2
votes
1answer
1k views

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 ...
2
votes
1answer
95 views

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 ...
2
votes
4answers
418 views

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 ...
2
votes
1answer
80 views

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 ...
2
votes
1answer
24 views

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 ...
2
votes
2answers
2k views

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 ...
2
votes
1answer
121 views

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 ...
2
votes
1answer
347 views

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:...
2
votes
2answers
1k views

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-...
2
votes
3answers
80 views

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 ...
2
votes
1answer
111 views

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 ...
2
votes
1answer
1k views

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 ...
2
votes
1answer
496 views

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 ...
2
votes
1answer
691 views

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 ...
2
votes
1answer
102 views

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 ...
2
votes
1answer
2k views

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 ...
2
votes
2answers
2k views

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 ...
2
votes
1answer
209 views

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. ...
2
votes
1answer
307 views

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 ...
2
votes
0answers
2k views

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 ...
2
votes
3answers
2k views

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 ...
2
votes
1answer
46 views

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 ...
1
vote
2answers
30 views

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 ...
1
vote
2answers
2k views

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 ...
1
vote
3answers
4k views

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 ...
1
vote
1answer
1k views

Whats the purpose behind the gain switch on some amps?

I have been wondering why so many amps comes with a gain button/switch? It seems to boost the mids, but can someone please explain what's the purpose, reasoning and history behind the gain feature ...
1
vote
1answer
891 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 ...
1
vote
2answers
250 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. ...
1
vote
1answer
1k 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"...
1
vote
2answers
77 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 ...
1
vote
1answer
47 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 ...