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
1
vote
1answer
36 views

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 ...
2
votes
1answer
31 views

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 ...
1
vote
1answer
18 views

Whine from speakers when there is no audio playing

As the title says, there is a loud whine from speakers when I am not playing an audio track on my PC. The PC has a stereo output to a Yamaha AX-590 (yes, it's old) amp that goes into two SB-CR77 ...
0
votes
0answers
23 views

Passive speaker

I’m working on a project for a cabinet with a passive speaker made out of wood I was thinking about 4-6 holes for it, and I would like to close-open that holes to raise the volume or turn down the ...
-1
votes
1answer
24 views

What role do the amplifier & dac play in sound imaging?

I don't know anything about audio-engineering or audio-gear...in fact I am not even sure if this is right forum for this type of question. Finally, I am not even sure if these are valid questions...I'...
1
vote
2answers
42 views

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 ...
0
votes
0answers
36 views

Line out of guitar amp when connected to soundcraft notepad 8FX does not give sound to the mixer. Is the Line out busted?

My guitar line out refuses to produce sound through the mixer. I am beginner guitar player and for my first gig I went to the church to play for a communion, I was carrying my guitar (Juarez), a ...
0
votes
1answer
28 views

Is is possible to obtain line level with Composite/RCA connector from an ASHLY TRA-4150 Amplifier?

I am trying to split the output of an audio channel output "mix" (there is no mixing panel between the mic inputs to amplifier and speaker). From what I can see, it appears that there is a ...
-1
votes
1answer
52 views

Using a light bulb as test / dummy load [closed]

I have an old sony str-d911 some pics I know the str-d911 is a receiver and not an amp but the specs say 100 watts per channel I tried using a 40 watt and 100 watt light bulb (as a test/dummy load) ...
0
votes
1answer
226 views

Guitar rig settings to get a deathcore sound on guitar

I am trying to make a deathcore sound on guitar rig software for guitar but cannot find something decent. I tried downloading some presets but either they weren't good enough or they were not ...
0
votes
0answers
46 views

Wiring new XLR combo input for Bass Amp

I‘m trying to fix a broken XLR-1/4 combo input on an old Laney DB400H Bass Amp. I got a Neutrik NCJ6FiS to replace the old one (of which I don‘t know the make or S/N, which is part of the problem I ...
1
vote
1answer
57 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 ...
0
votes
2answers
43 views

1/8" Headset to XLR

I have a Focusrite Scarlett 2i2 interface connected to my PC. It has XLR mic input and 1/4" headphones output, while my headset has regular double 1/8" jacks. I was wondering if it's safe to ...
0
votes
1answer
74 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 ...
0
votes
1answer
49 views

Can I use one of these common USB audio interfaces with Sony F-99B dynamic mic?

I got an age-old Sony F-99B dynamic microphone lying around while I was looking for gear to shoot an interview-style podcast. Now, I understand that dynamic mics output mic level signals that should ...
0
votes
1answer
28 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 ...
1
vote
1answer
24 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 ...
1
vote
1answer
37 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 ...
0
votes
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 ...
2
votes
1answer
411 views

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 ...
0
votes
2answers
221 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 ...
0
votes
0answers
168 views

Attenuating the amplifier volume: what is a better approach?

My Denon PMA-600NE is "too loud too quickly" with ELAC Debut 2.0 B5.2 speakers. Turning the master volume knob just ~20 degrees from zero position already takes it to a very high volume. I would like ...
1
vote
2answers
175 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 ...
4
votes
2answers
3k 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-...
0
votes
1answer
714 views

Connecting Condenser Mic to an amplifier then to PC? [duplicate]

I have BM800 condenser microphone which produces really low volume because it needs to be connected to a phantom power, I don't have a phantom power but I have an old Pioneer SA-600 amplifier. How do ...
1
vote
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 ...
0
votes
1answer
126 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 ...
0
votes
1answer
152 views

How can I get a stereo Bluetooth signal converted to a mono one?

I am trying to build a small singe driver full range active bluetooth speaker using some of those cheap class D amplifier boards you can buy everywhere on eBay etc. Many of them comes with a build in ...
0
votes
1answer
147 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 ...
0
votes
1answer
30 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 ...
0
votes
4answers
140 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 ...
-1
votes
1answer
794 views

Attenuator/volume control between amplifier and speaker

I have a setup where an amplifier with 2 channels drives four 8 ohms 80 watts speakers on each channel. The amplifier has a single volume knob which controls volume of both channels at once. What I ...
0
votes
1answer
188 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 ...
0
votes
1answer
1k 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 ...
0
votes
2answers
713 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 ...
2
votes
1answer
188 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 ...
0
votes
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 ...
0
votes
3answers
1k views

Converting a 3.5in mic input to line level portably

As I understand it, mic level input and line level input are two different things, with line level input having a much higher power level. In my case, I'm dealing with an old minidisc recorder that ...
0
votes
1answer
90 views

Mixing amplified signals of a 2.1 amp and outputting them to 2 speakers

I would like to mix the dedicated bass output of this amp with both the left and right channels and output the respective combined signal (L+bass, R+bass) on a set of two 200W, 4 Ohm speakers. A ...
0
votes
3answers
17k views

How to filter hiss from amp to speakers? [closed]

I picked up an inexpensive 2x120W amplifier to drive my 8-ohm desktop speakers, and it produces a bit of a hiss, particularly when the treble is mixed further up which is what it seems to need. Is ...
-1
votes
1answer
34 views

Selecting proper amplifier output level

I am powering 6 CVS 8 Tannoy Ceiling speakers: https://www.tannoy.com/Categories/Tannoy/CVS/CVS-8/p/P0BSK The specifications say they have a 60W continuous operating power and a 240 Watt peak power. ...
0
votes
2answers
469 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 ...
1
vote
1answer
204 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: ...
1
vote
2answers
5k 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 ...
0
votes
1answer
66 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 ...
0
votes
1answer
9k views

Wiring 2x subwoofers down to 1 or 0.5 ohm on a 2 ohm verified amplifier? [closed]

This is strictly a hypothetical question. I have a 2600W peak monoblock amplifier for my car, which is rated at 1000W at 2 ohm. I am currently wiring my subwoofers to the amplifier like this: What ...
0
votes
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 ...
2
votes
1answer
25 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 ...
1
vote
1answer
102 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 ...
0
votes
2answers
112 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 ...