Are these speakers ok with my Amp

[discomobiledj]

I'm looking at these Class D 128-1 via Class D's ebay page as their website shows out of stock. (http://cgi.ebay.co.uk/Class-D-CD128-1-Pair-of-12-500w-RMS-Speakers-Band-DJ_W0QQitemZ350147022401QQcmdZViewItemQQptZUK_ConE lec_SpeakersPASystems_RL?hash=item350147022401&_trksid=p3286.c0.m14&_trkparms=66%3A2%7C65%3A15%7C39%3A1%7C240%3A1318)

What I want to know is are these ok with my WA800 amplifier? And are they going to be better than my 200w speakers I use at the moment?

Or would these (http://www.classd.ltd.uk/product.php?productid=16137&cat=3&page=1) be a better option?

[Corabar Steve]

2 points.

1. If something is shown as out of stock on somebody's website, it's a bit of a pointless exercise trying to buy the same thing off the same people on another website.

2. yes go for either the CD158 or the CD158-1

[OllieJames]

2 points.

1. If something is shown as out of stock on somebody's website, it's a bit of a pointless exercise trying to buy the same thing off the same people on another website.

2. yes go for either the CD158 or the CD158-1

:agree:

I think the CD158-1 look better, sounds stupid, but personally i think the tweeters on the CD158's look cheap.

Here's the link for the CD158-1 (http://www.classd.ltd.uk/product.php?productid=16138&cat=0&page=1)

Looking at the specs:

Speaker
CD158

Power RMS
350w RMS

Impeadence
8

Freq Response
50Hz - 20kHz

Sensitivity
94dB

Max SPL
110dB

Coverage
90 x 60

LF Driver
15"

HF Driver
3 x 3" Piezo

Cross Over Frequency
4kHz

Enclosure Material
18mm MDF

Finish
Carpet

Connections
Speakon In / Out

Dimensions (HxWxD) (Out Of Box)
685x440x370mm

Dimensions (HxWxD) (Including Box)
730x470x390mm

Weight
19.6kg

-----------------------------------
Speaker
CD158-1

Power RMS
350w RMS

Impeadence
8

Freq Response
50Hz - 20kHz

Sensitivity
94dB

Max SPL
112dB

Coverage
90 x 60

LF Driver
15"

HF Driver
2.5" Voice Coil

Cross Over Frequency
4kHz

Enclosure Material
18mm MDF

Finish
Carpet

Connections
Speakon In / Out

Dimensions (HxWxD) (Out Of Box)
710x470x370mm

Dimensions (HxWxD) (Including Box)
720x500x400mm

Weight
20.3kg

The CD158-1 are slightly louder, bigger & heavier - they also look better IMO. They're the same price anyway.

[discomobiledj]

1. If something is shown as out of stock on somebody's website, it's a bit of a pointless exercise trying to buy the same thing off the same people on another website.

Even though it shows 6 available?

Just found the 158-1's for £134.99!

[chelsea485]

Just out of curiousity - what wattage speakers do you think would easily manage for a mobile disco company ??

[Solitaire Events Ltd]

Wattage doesn't make any difference.

[chelsea485]

OK.............. i'm looking to buy new speakers and new amp.

Seeing the previous posts - would 300watt per speaker be big enough to cope with most medium size events ?

If so, would size amp would i need as well please ?

Thank You

[spin mobile disco]

For the money I would go for the peavey pro range as they are a much better spec. The sensitivity on the peavey range in about 97 - 99db as well so more efficient.

[Solitaire Events Ltd]

OK.............. i'm looking to buy new speakers and new amp.

Seeing the previous posts - would 300watt per speaker be big enough to cope with most medium size events ?

If so, would size amp would i need as well please ?

Thank You

Wattage doesn't make any difference - it's about speaker efficiency.

Have a read up on it.

Your question is very ambiguous- what is a medium size event? How many people? What size venue?

[Tom]

I agree with Darren.


What you want to look at is max spl. It don't matter if a speakers has 200 watts rms or 400 watts rms. Spl is where it is. A 200 rms speaker could have a bigger spl than a 400.

If I'm correct, all the RMS means is that's how much power it takes you to get to your max spl. Expensive cabs will have a high sensitivity which means high output but that also means a high price tag. Cheaper speakers will have a low sensitivity and will have a lower output spl, in some cases.

[Tony Scott]

OK.............. i'm looking to buy new speakers and new amp.

Seeing the previous posts - would 300watt per speaker be big enough to cope with most medium size events ?

If so, would size amp would i need as well please ?

Thank You

A pair of speakers producing a MaxSPL of around 127 - 130db each should be sufficient for crowds up to about 150 people provided they are elevated(on a stage or stands).

You also have to look at the low end reproduction, you need something that will go as low as 45 - 50 hz to get a full sound, if they don't then you should look at adding BassBins or Subs for anything over 50 people.

All of this also depends on the venue and speaker placement, some venues suck the life out of soundsystems, some enhance it. I do a venue that sometimes has a 'marquee' set-up in a conference room.
With the Marquee in I have to use twice the power I normally do if it's not there.

Your amplifier will have to be big enough to power the speakers you choose, if your speakers need 300w rms to produce their MaxSPL of 130db then your amp will have to provide 300w rms to each speaker, I prefer to have amplifiers double the power I need so I have loads of headroom although it's not always practicle or affordable. :)

[nigelwright7557]

What I want to know is are these ok with my WA800 amplifier? And are they going to be better than my 200w speakers I use at the moment?

Or would these (http://www.classd.ltd.uk/product.php?productid=16137&cat=3&page=1) be a better option?

I would go for the first speakers, higher power and a better sensitivity.

[Tom]

If you want to down the class-d route then maby look at these (http://www.classd.ltd.uk/product.php?productid=16141&cat=3&page=1).

They have the same spl at a mackie srm 450 so they should be loud enough for all gigs. Just add sub/s for more low end for larger gigs.

[Excalibur]

All the previous advice is excellent. If you only intend to use ONE pair of cabs ( ie no subs ) I'd recommend wooden ones over plastic.
http://www.classd.ltd.uk/product.php?productid=16143&cat=23&page=1

If you never want to buy subs, these are the kiddies. Huge but superb.

http://www.classd.ltd.uk/product.php?productid=16144&cat=23&page=1

Note that on the webpage, the prices of the CD12SP and CD12SP appear to have been swapped. ;)

[Corabar Steve]

I think the CD158-1 look better, sounds stupid, but personally i think the tweeters on the CD158's look cheap.

Here's the link for the CD158-1 (http://www.classd.ltd.uk/product.php?productid=16138&cat=0&page=1)

Looking at the specs:The CD158-1 are slightly louder, bigger & heavier - they also look better IMO. They're the same price anyway.No need to quote the Specs to me, I've owned both versions (a set of each were stolen when my van was broken into) I don't think there is any actual size difference. Aesthetics aside, I prefer the sound of the 158s


Even though it shows 6 available?

Just found the 158-1's for £134.99!
Maybe they've got a stash soley for eBay sales, although I think that's unlikely.

[rob1963]

A pair of speakers producing a MaxSPL of around 127 - 130db each should be sufficient for crowds up to about 150 people provided they are elevated(on a stage or stands).

I'd say that's MORE than enough if my own experience is anything to go by.

My speakers only have a maximum SPL of 123db, and I've used them for crowds of 250+ with no problems at all.

[Tony Scott]

I'd say that's MORE than enough if my own experience is anything to go by.

My speakers only have a maximum SPL of 123db, and I've used them for crowds of 250+ with no problems at all.


Yes I agree that it can be done on something around 123db@1mtr but if you want a full, warm and controlled sound then you have to go a little higher on the MaxSPL to give some headroom....just my opinion based on my experience! :)

[Excalibur]

Your amplifier will have to be big enough to power the speakers you choose, if your speakers need 300w rms to produce their MaxSPL of 130db then your amp will have to provide 300w rms to each speaker, I prefer to have amplifiers double the power I need so I have loads of headroom although it's not always practicle or affordable. :)

In your case it's not practicable unless you're within easy reach of the Electricity Sub-station. :p :D :D



Yes I agree that it can be done on something around 123db@1mtr but if you want a full, warm and controlled sound then you have to go a little higher on the MaxSPL to give some headroom....just my opinion based on my experience! :)

Tony, I feel you may be unaware of certain things. Firstly Rob can't carry speakers big enough to produce more than 123db@1mtr. Secondly, until he buys a switching amp, he can't carry an amp big enough to drive the dinky cabs to their full potential. Thirdly, Rob never does gigs where you need to FEEL the music. ( He's an old fogey you see. ;) )

Curses. :( :o Yet another resolution gone. :( :( :(