Any Help Appreciated

M

mn1333

Audiophyte
Hey everyone, was just bouncing around the forums and looking at all the pictures you've all put up blows my mind. I hope to have a crazy audio set up one day. If it is not too much trouble, I was hoping someone can point me in the right direction. I travel for months at a time for work and while I was away for the past few months, my family found two of these in the basement:
Sharp cp-2007p
the back tag states that it is 8 ohms and 100 watts of power

Is there a way to test a speaker and see if it even works? These are pretty old.

Just recently graduating college, the only speakers I do have a Sony MHC-EC99i Mini Hi-Fi Shelf System

Knowing that I cant use the Sony system to help power these speakers, what amp should I look at to power the Sharps? If it is possible to somehow combine both these systems, is there anything I could do to hook both of them up to blow my roof off the house? I dont think my parents would appreciate it, but I would certainly love to get my face pulled back a bit.

Any help/info would be greatly appreciated. Hope your day is going well.
 
Adam

Adam

Audioholic Jedi
Welcome to the forum!

I can't find any information on those Sharp speakers, but to be honest, I didn't spend all that long looking. Perhaps you could put up some pictures for us (you'll need five posts to do that).

You actually could hook those up to your Sony system, but without knowing anything about them, the real question is - would you even want to? They might sound worse than what you have.

As for checking if a speaker works or not, there are ways to tell. I've seen it mentioned here to hook up a battery to the leads, but I'll let someone else here give the specifics. Do you have a multi-meter or anything else that can check continuity? I wouldn't recommend hooking them up to your Sony before checking if the speaker terminals are shorted.
 
M

mn1333

Audiophyte
Thank you Adam. I figured this thread was going nowhere.

I don't blame you. I looked around for a long time online and saw people were selling them, but with no pictures and information as to what they are capable of. I did take pictures but I noticed that I couldn't post them. Then I tried to host them on a website, but I can't post the links either. I'll get them up.

I didn't think that the Sony would be powerful enough to power the speakers. I've been looking online for receivers, but I'm not exactly sure what I'm looking at. Car audio is more my thing.

I remember buying one a few years ago so I'll check the tool box.
Thanks again. I'll post pictures soon.
 
Adam

Adam

Audioholic Jedi
Thank you Adam. I figured this thread was going nowhere.
Sorry about the late response - I had it up yesterday to respond, but then I got sidetracked. I'm glad that you didn't just write us off and leave. :)

Then I tried to host them on a website, but I can't post the links either.
I'm pretty sure that you need five posts to do either, photos or links. No one is going to be mad if you throw up a couple of nothing posts (such as "Need 3 more...", "Need 2 more...").

I didn't think that the Sony would be powerful enough to power the speakers. I've been looking online for receivers, but I'm not exactly sure what I'm looking at.
Things to look at in terms of matching electronics up to speakers are: impedance and sensitivity.

Impedance (e.g. 8 ohms) relates to the electrical load that an amplifier/receiver is going to see (related note: receivers and speakers basically just form an electrical circuit). As impedance drops, the amp will supply more current - and too much current draw can overheat and/or damage an amp. 8 ohms is a pretty typical and easy-to-drive value for most amps, and your Sony amp is designed for 8-ohm speakers because that's what the Sony speakers are rated. The rating is a "nominal" value, and the actual impedance varies over frequency (I believe), but the nominal value is normally a great guide.

Sensitivity (e.g. 90 dB) is a rating of how loud a speaker will play when provided a certain amount of power. A lot of speakers are rated at how loud they will sound at 1 meter away from the speaker when 1 Watt is sent to the speaker. A lot of speakers are somewhere in or near the 85-95dB range. The higher that value, the louder a speaker will be at any given power, so...the higher the value, the easier it is for you to play a speaker loud with any given amp.

There are a lot of threads on this forum related to receivers and amps. I tend to focus on the features that I want (audio decoding, connections, etc.) within my budget first, then I look to see if I think a receiver has enough power for my listening habits (I tend to listen fairly quietly, so that's not normally an issue for me). A lot of the time, you'll likely be using less than 1 W when listening - often, in the 0.01 W range. But, to get 10dB louder (which a lot of people equate to twice as loud), you need 10 times the power. So, to be twice as loud as at 0.01 W, you need 0.1 W. To be four times as loud, you need 1 W. To be eight times as loud, you need 10 W. And so on. Also, there's the ability of an amp to handle very high power levels for very short periods of time, such as for cymbal crashes in music. Ahhh, but I ramble on - you can read all about that here.

Just let us know whatever questions you have.
 
M

mn1333

Audiophyte
haha nah I got a lot of patience. I felt bad if I just threw trash out there. Here are the pics:



Front side. Just took it of one. Merry Early Christmas :)



This is as much info as I've found. There is nothing else in the basement that I have discovered describing the specs of these speakers.

MHC-EC99i | Mini Hi-Fi Music System | Sony | Sony Store USA

and that's what I brought home from college.

haha well its a helpful ramble so I appreciate it. I'll look at some more with all that information in mind and look around the forums more. thank you
 
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