Amplifiers are pieces of equipment that accept an input signal and increase its power, for use in other components of the audio system.

learn more… | top users | synonyms

3
votes
1answer
40 views

How Do You Clean RCA Ports?

I have an old amp which is beginning to show wear 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 substance to use to ...
1
vote
1answer
35 views

How to troubleshoot audio imbalance?

Despite that the balance is set to neutral (middle) the right channel delivers clearly lower audio than the left channel for all I/O. I didn't try with headphones directly from the amp. The amp is ...
2
votes
2answers
108 views

Mixer / Power amp / Decibel Meter setup

I just bought: A power amplifier (Amazon.com link) A mixer (Amazon.com link) Two loudspeakers (Amazon.com link) A decibel meter (Amazon.com link) Before buying the decibel meter, the setup was ...
1
vote
0answers
73 views

How to connect passive speakers and bass bins?

I have 2 x passive kam 1000w (250w RMS) speakers and a Peavy PV 2600 Power Amplifier. The amp is 900 Watts RMS per channel into 4 Ohms and 550 Watts RMS per channel into 8 Ohms. I would like to ...
1
vote
3answers
106 views

Speakers crackle when input volume to amp is max

When i turn the volume of the input to my "amp" to the max, my speakers crackle. If i turn the volume down of the input and up for the amp, so the volume is the same as before, it's perfectly fine. My ...
2
votes
2answers
86 views

Connecting the ground of a turntable to the amplifier

I have a Technics SL-3310 turntable which I connect to the phono input of my amplifier. The turntable has a short RCA cable coming out of it. The turntable and amplifier are far apart from each ...
0
votes
0answers
124 views

Connecting Airport Express to 5.1 surround speakers [closed]

I just purchased a Yamaha 5.1-Channel Home Theater Speaker System without realizing I needed an receiver/amplifier, as well. All of the ones I can find seem to be intended for a home theatre system ...
2
votes
2answers
180 views

What simple multi channel amp rack do you recommend?

For monitoring I need to drive sound of multiple soundcards into one and single amp with 4 inputs and 4 outputs No routing, input 1 goes to output 1, and so on. My speakers (4): 15-100w 8ohm FR ...
4
votes
2answers
478 views

What is Presence?

I got an Ibanez amplifier for my keyboard and there is a dial called 'presence'. What does it do?
3
votes
3answers
218 views

Amp is receiving radio signal?

My amp is playing a lot of radio stations at the same time. The amp model is an Ibanez IBZ10Z, and it's plugged into my keyboard.
2
votes
1answer
441 views

Can the Thomann T.AMP E400 be bridged?

I'm selling my T.AMP E400 and I've been asked a question which is over my head as far as my knowledge of powered amplifiers goes. Can this amp be bridged, and if so, what is the output at 4 and 8 ...
1
vote
0answers
112 views

Can this older Thomann T.AMP E400 be bridged?

I previously asked a similar question but I've since discovered that the actual amp I have is an older version, but namesake, of that amp. The amp I actually bought is a bit simpler; there's no ...
3
votes
2answers
568 views

How to connect tops and bass bins

I'm DJing all kinds of partys, house parties, and events the last year or so. I have a set of prosound 500w passive tops and a prosound 1600w amp. Not great but does the trick. I'm using a Numark ...
2
votes
2answers
148 views

Headphone Amp for Shure SRH440

My Shure SRH440 has a very low, poor sound when I'm using my MP3 player (Ipod nano). Since the sound gets much better when I connect it to my Receiver (a Sony one) or even to the computer, I think ...
2
votes
1answer
285 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 ...
1
vote
2answers
112 views

How to amplify a collection of sound files

I have up to 200 audio files which are really short (2,3 seconds maximum) but they need to be amplified. 1) Is there a fast way of amplification for a playlist of sounds? also... 2)Is there a ...
2
votes
1answer
127 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 ...
0
votes
2answers
991 views

Best cable to connect guitar amp to speaker cabinet?

What's the best 1/4" cable (brand, gauge, etc.) to connect a guitar amp head to a speaker cabinet? I have a run of under 10 feet. I read using an instrument cable can damage the amp and speakers.
2
votes
1answer
130 views

What's a semi-objective way to evaluate a live audio setup for a small-medium sized acoustic band?

So I'm hoping this is "answerable" :) We are a small band (two vocals, two acoustics, keys, sometimes an electric guitar, sometimes drums). Stopping by a Guitar Center there was a lot to look at, ...
1
vote
1answer
376 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 ...
2
votes
2answers
611 views

Why does my Variable Audio Out not send a signal from my Toshiba 26AV500 TV?

I have a computer hooked up to a Toshiba 26AV500 TV with an HDMI cable. The TV has a Variable Audio Out with RCA cords as well as a Digital Optical Audio-Out, that is hooked up to my amp (which is ...
5
votes
2answers
11k 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 ...
4
votes
1answer
85 views

Headphone amplifiers

Can a headphone amp help the sound reproduction of even "fairly cheap" (~$100) headphones? What can a headphone amp help with? When do I need one?
3
votes
3answers
344 views

Older Bedroom DJ Seeks Advice: Amp about to die - should I get another or powered monitor speakers…?

I've had all my DJ kit since about 1995: Pair of Technics 1210s 1 x Boss Sampler/Sequencer 1 x Kenwood KA3020SE Amp 1 x Kam Scratch Mixer Pair Mission 702 speakers Pair Eltax Monitor speakers The ...
0
votes
1answer
213 views

ART Tube MP doesn't register any input.

I have a NADY SP-4C mic plugged into an ART Tube MP Studio preamp which, in turn, is plugged into my laptop's mic/line-in. All connected via 1/4" (laptop is 1/4" to 1/8", of course). The Tube MP does ...
0
votes
1answer
303 views

making a multiple speaker system from stereo headphone socket for apartment

I have an mp3 player that has a headphone/speaker output socket of 3.5mm type. I want to use it to feed into a group of 4 speakers sets for PCs. The maximum cable distance should be around 8 meters ...
4
votes
2answers
2k views

How do you replace a broken volume pot?

I have an old Crown D-75 amplifier that I acquired a while back and it works like a beaut except one of the volume pots is toast. The pot has 2 different numbers stamped on it, both of which yield no ...
1
vote
2answers
326 views

Mixing Alnico and Ceramic on 1969 Fender Bassman

I am a classic amp collector, and have a great number of great pieces. I also run a recording studio and a reamping service. I found at a great price a 1969 Fender Bassman TEN (silverface) ... a 50W ...
2
votes
2answers
491 views

How do I properly set audio levels of a sound system?

I am looking for some “best practices” and advice on setting the initial levels of my mixing equipment and power amps. Are there any guide lines for this sort of thing? Traditionally I’ve always ...
4
votes
3answers
572 views

Scratchy volume pot

I have an old Crown D-75 amplifier that I acquired a while back and it works like a beaut except one issue. When I turn the pots on the volume control it creates a scratchy sound. Is this something ...
2
votes
1answer
98 views

Amplifier Circuitry

I have in my bench a couple of BlueSky satellites (Mk1 of their pm3 THX certified series) that constantly blow BOTH transistors :S. I'm not really sure how to even start looking for the problem ...