Bit of advise needed (class-d)

[One Vision]

I have done quite allot of research in to these class-d cabs in fact class-d in general.
It wasn't until I spotted the JAC15s then made my ears stand on end and eyeballs wide open.
I was all for going for the Mackie srm450s but now seen these am completely undecided.

The JAC15s are rated at 500rms continuous each at 8ohms and have cast alloy drivers as apposed to the cheap pressed tin ones, so in my eyes that's ideal as music does not run continuous but up and down so in theory should run pretty well.
Please have a look at this package and tell me what you think over all, eventually I will also get some bass bins with a separate amp for them but for now can only afford tops.

http://www.class-d.com/Product.aspx?PRO=637

[Daryl]

I know a few people here will try and hunt me down for saying this, but personally, I wouldn't touch Class-d with a 10ft barge pole. I know a guy who has a pair and they sound like complete and utter trash. My 10 year old Kams sound way better.

[Excalibur]

One for, one against.

Right Karl, for a start the web adverts are often out of date. As far as I know, they're not selling C-mark amps at the moment, though that may change. Here are the Jac15's
http://www.class-d.com/Product.aspx?PRO=529

This is the amp I have, which could be a little bigger for these. They appear to have stopped advertising the 2000, which would be a better fit, so a link to that will follow.
http://www.class-d.com/Product.aspx?PRO=722

Larger amp
http://www.soundlightuk.com/KAM/KXR_Amplifiers.htm

I have never heard the Jac range running, so can not advise on them. Best guess as always is to ring Class-D, see what they have to say, I really would advise hearing them before you buy.

[Corabar Steve]

I've only heard bad things about the JAC range. If you're going for Class D go wooden.

[One Vision]

Hya fellas many thanks for your honesty, maybe I should stay clear?
The KXR 2000 amp sounds a good one, although am not really sure how good kam amps are?

£279.95 inc VAT
1000W RMS @ 4 Ohms | 670W RMS @ 8 Ohms per Channel
S/N Ratio 90dB | THD 0.1% | 416 x 88 x 481mm | 18.5Kg

KXR Professional Amplifiers

Six models in range

Outstanding build quality & reliability

Thermally efficient central heat sink design

Vented front panel with forced fan cooling

Thermal protection relay

Peak signal protection

Balanced XLR audio inputs

Unbalanced ¼" Jack audio inputs

Line Level Phono inputs on KXR150 & 300

Speakon and Binding Post speaker outputs

Bridge mode operation on KXR600 to 2000

Earth lift switch


MIN IMPEDANCE :4 Ohms

FREQ' RANGE :20Hz - 30KHz

[Excalibur]

As far as I can tell you, the KAM amps have no bells and whistles, but working well for me so far.

[JAMdisco]

As far as I can tell you, the KAM amps have no bells and whistles, but working well for me so far.

I'm surprised you use them Peter:eek: , I know how much you like your bells & whistles :D

[One Vision]

Steve if am going to go wooden I may as well go for the Peavey ULs as they'll be pretty much the same size although cost more but sound awesome :confused:

Excalibur when you say have no bells and whistles what do they not have that better amps have :Help:

[Excalibur]

Steve if am going to go wooden I may as well go for the Peavey ULs as they'll be pretty much the same size although cost more but sound awesome :confused:

Excalibur when you say have no bells and whistles what do they not have that better amps have :Help:

No signal level leds on the front, no speakon bridge socket on the back
( though in some ways that can be viewed as a bonus) . That's the two main items, not a lot in the scheme of things, perhaps.

Yes the Peavey UL's are great. Probably my system of choice, if funds were not a factor. :eek: :D

[One Vision]

No signal level leds on the front, no speakon bridge socket on the back
( though in some ways that can be viewed as a bonus) . That's the two main items, not a lot in the scheme of things, perhaps.

Yes the Peavey UL's are great. Probably my system of choice, if funds were not a factor. :eek: :D

Their not actually that badly priced for pro gear
An average for a pair of tops £649 then roughly £300+ for the perfectly matched Peavey amp still very respectable and you don't have the split opinion's on whether they are good or not as its a sure deal, although am sure other amp options that cost less would do just as well?
http://www.djdepot.co.uk/images/pv2600.jpg

Peavey PV 2600 Amplifier :: Further information:
PV2600

2 x 900W @ 4 Ohms. On-board DDT speaker protection. Includes built-in crossovers.

Massive power in a small package. The PV 2600 has XLR, 1/4 inch and barrier strip inputs with Peavey's famous DDT compression system, binding post and Speakon output connectors. The PV 2600 also features two built-in 150 Hz crossover making it the ideal choice for subwoofers.

ѠInputs: XLR, 1/4 inch and barrier strip
ѠDetented input gain control
ѠBinding post and Speakon output connectors
ѠSeparate Speakon mono bridge output
ѠMode switch for stereo or bridge operation
ѠLow-cut filter switch for 40 Hz low cut filter
ѠBuilt-in crossover with 150 Hz switch
ѠThru/low output jacks and high output jacks
ѠLED indicators for input signal, DDT & power
ѠPeavey's famous DDT compression system
ѠStereo Mode: 4 Ohms: 900 Watts RMS x 2
ѠStereo Mode: 8 Ohms: 540 Watts RMS x 2
ѠBridge Mode-Mono: 8 Ohms: 1800 Watts RMS
ѠTotal Harmonic Distortion: Less than 0.03% 20 Hz to 20 K, 10 dB below rated power in stereo mode both channels driven
ѠFrequency Response: 20 Hz to 20 kHz
ѠDamping Factor: greater than 300
ѠHum an Noise: 100 dB
ѠRack Spaces: 2 RU
Ѡ*Not recommended for continuous 2 ohm stereo/4 ohm bridge duty

[Dillmiester]

I have the JAC 15"'s
They are good but not amazing. No where near the quality of Mackie SRM450 or the unpowerd version (of which i have heard many times).
It seems that Class D are good but only if it invloves a wooden cab design.

If i were buying again I would go for something else as I haft to be heavy with the eq to get the sound I want from the JAC's

But everyone has different ears!

[Corabar Steve]

You never know they may have solved some of the problems with the new ones.

"Wooden" cabs do generally seem to sound better than plastic though.

[ppentertainments]

"Wooden" cabs do generally seem to sound better than plastic though.

Have to agree. I have went to plastic from wood for weight reasons but was far happier when using wooden cabs. Not sure if applies to all makes ??

[JAMdisco]

Well I have used Active Mackie's for years and although impressed, wonder where all the money goes after listening to Peters Wooden Class D's with my setup. Dare I say as good as my Mackies!!! Needless to say I'm going for Class D's in the very near future. Hell of a lot lighter too - which is a big bonus when stairs or distance are involved!!!

[Solitaire Events Ltd]

Lighter, but then you need to carry an amp too....

[One Vision]

Well I have used Active Mackie's for years and although impressed, wonder where all the money goes after listening to Peters Wooden Class D's with my setup. Dare I say as good as my Mackies!!! Needless to say I'm going for Class D's in the very near future. Hell of a lot lighter too - which is a big bonus when stairs or distance are involved!!!

Hya mate thats very encouraging and going someway in swaying me towards class-d, out of interest what tops sounded the better from class-d?
I dont think I would have the room for the double 15s but may be ok with the single 15s :)

[Excalibur]

Well I have used Active Mackie's for years and although impressed, wonder where all the money goes after listening to Peters Wooden Class D's with my setup. Dare I say as good as my Mackies!!! Needless to say I'm going for Class D's in the very near future. Hell of a lot lighter too - which is a big bonus when stairs or distance are involved!!!

Justin's powered sub, while having a very impressive sound, is officially very heavy. ;) :D


Lighter, but then you need to carry an amp too....

Though not at the same time. Justin has now decided that having a spare 4u case, he's going to fill it with 50Kg of amp. ( which will be heavier than his sub! :doh: )


Hya mate thats very encouraging and going someway in swaying me towards class-d, out of interest what tops sounded the better from class-d?
I dont think I would have the room for the double 15s but may be ok with the single 15s :)

Justin can get the 215's in his escort estate. He may have to go for the CD12SP's if he doesn't get a trailer the CD15SP's are a bit on the big side.

The old 215s sounded really good, I now remember why I bought them as soon as I heard them. :D The CD15SP's were similar, just less bass that's all.

[One Vision]

Thanks Excalibur I guess the Prof is in the pudding, the guys that say they are good yourself included are no mugs when it comes to sound systems so I reckon that's good enough for me to be convinced as I reckon if they were no good then there would not be as much talk about them, I honestly don't think I have seen so much good feedback from any other speaker company or should I say as talked about as Class-D.

My car is a little bigger than an Escort as its a Volvo V40 but not much bigger.
I know from 2 speakers am not gonna get exactly the sound I want eventually but as long as the sound is respectable for the time being then that will do until I can get a small van or whatever, then will buy the bins to match.

Thanks for spending the time in doing the test as I reckon it may have convinced a few others too.

[Tom]

Im swaying atm. My plan was to get DB tops and subs as i have a db sub already. I think i will stick with my plan but if Class-D bring out a better range then maby i would buy. I dont like the look of the metal grill. I prefer a foam grill.

I know most speakers have metal grills but im not to keen on them.

[Tony Scott]

I beleive that the reason Class D are discussed so often on the forum is that, for what they cost, they seem too good to be true!

I also think it rubs some people up the wrong way to suggest that a cheaper option can sound as good, if not better than a more costly brand. 'Badge snobbery' can colour peoples views sometimes and I beleive that until you have actually listened to a particular product you should not pass judgement on it.

I do not use 'Class D' speakers but have heard the new CD15SP's and was quite suprised how good they sounded. I was not as keen on the older peizo models, although I've heard much worse. :)

[One Vision]

Right I will be going with the CD15SP 350W and what do you reckon to this amp to match or is there a better one for these speakers?
Warrior Audio DA-1300 Amplifier £169.99 I am assuming the ratings are in rms but not sure?

FEATURES:
Volume Control Knob Indicators. Peak Level Indicators, Protect Mode Indicators.
Fan cooled.
Soft start, Short circuit and Thermal protection.
Outputs: Speakon ,Jack and Binding Post Outputs.
Inputs: Jack and XLR.

Technical Specifications:

Output Per Channel
Power Output (4 Ohms) 650W
Power Output (8 Ohms) 390W
Power Output (8 Ohms Bridged) 1300W
Frequency Response 10Hz - 25kHz
Signal to Noise Ratio 100dB
Slew Rate 50v/us
Damping Factor >300
THD @ Rated Power - 0.06% over rated bandwidth - 1kHz typically 0.03% - all models
Mains Input Voltage 240 VAC
Dimensions (mm) 483 x 88 x 420mm - 2U
Weight (kg) 17.0

[Tony Scott]

......what do you reckon to this amp.............Warrior Audio DA-1300 Amplifier £169.99 I am assuming the ratings are in rms but not sure?........



I've got a 1000w version of this amp for my monitors and it has been a very good workhorse. The ratings are RMS. I run mine 8ohms per channel on a pair of Wharfdale Pro 15" + 1" full range cabs and it doesn't break a sweat! :)

[One Vision]

Thanks Tony much appreciated.
So £419 for speakers and amp that gives me a bit more spending money for other gear :D

[JAMdisco]

Lighter, but then you need to carry an amp too....

This is quite true but it's much easier to carry as it's a more compact object and you can carry it closer to your body. I have a 4U rack case that has had amps in it before and is easily managed. The trouble with the SWA1501 is it's size AND weight. Especially carrying it down some stairs at the weekend, I got cramp in my right hamsting as I had to lean backwards to counter-act the weight, I just managed to get it to the car as the cramp kicked in (very painful)
If I'd had 2 subs, I wouldn't have managed the second!!!

[Excalibur]

Right I will be going with the CD15SP 350W and what do you reckon to this amp to match or is there a better one for these speakers?
Warrior Audio DA-1300 Amplifier £169.99 I am assuming the ratings are in rms but not sure?

FEATURES:
Volume Control Knob Indicators. Peak Level Indicators, Protect Mode Indicators.
Fan cooled.
Soft start, Short circuit and Thermal protection.
Outputs: Speakon ,Jack and Binding Post Outputs.
Inputs: Jack and XLR.

Technical Specifications:


http://www.class-d.com/Product.aspx?PRO=722
Output Per Channel
Power Output (4 Ohms) 650W
Power Output (8 Ohms) 390W
Power Output (8 Ohms Bridged) 1300W
Frequency Response 10Hz - 25kHz
Signal to Noise Ratio 100dB
Slew Rate 50v/us
Damping Factor >300
THD @ Rated Power - 0.06% over rated bandwidth - 1kHz typically 0.03% - all models
Mains Input Voltage 240 VAC
Dimensions (mm) 483 x 88 x 420mm - 2U
Weight (kg) 17.0

If it's going to be your main amp, it's a gnat's down on power. This one from Thomann is my C-Mark with a different coat on.
http://www.thomann.de/gb/tamp_ta1400_amplifier.htm

Depending on where you start from, in this country
http://www.ukdj.com/index.asp?PageAction=VIEWPROD&ProdID=9653
this is well regarded by many
http://www.ukdj.com/index.asp?PageAction=VIEWPROD&ProdID=9344

and this is what Class-D will offer. Tell them you can get it cheaper, and the price may fall little.;) I run this, it's a bit basic, but so far reliable.

[Tony Scott]

.............This one from Thomann is my C-Mark with a different coat on.
http://www.thomann.de/gb/tamp_ta1400_amplifier.htm


I have used the t-amp 2400w version, very solid. The 1400w version is only about £218 incl delivery.....bargain!



this is well regarded by many
http://www.ukdj.com/index.asp?PageAction=VIEWPROD&ProdID=9344


Yeah I've got 3 of these and for the money they are great. Had them for 3 years now without the slightest issue. :thumbsup:

[djsteve10]

I have used the t-amp 2400w version, very solid. The 1400w version is only about £218 incl delivery.....bargain!



Yeah I've got 3 of these and for the money they are great. Had them for 3 years now without the slightest issue. :thumbsup:

They seem to have quite good revivews and on closer inspection from a friend of mine they have the same components as a QSC belive it or not!

[Solitaire Events Ltd]

I honestly don't think I have seen so much good feedback from any other speaker company or should I say as talked about as Class-D.



Only on here. There are a couple of other forums where they are hated. ;)

[One Vision]

Hya Daz that's a shame maybe its badge snobbery?
I know when I mentioned them to my mate he almost looked at me in disgust at the idea that they may be good for that price.
He also said at least I know I will be able to sell my Peaveys for a decent price, so I said but why would you want to sell them?
I am looking at it with this view yes they are cheaper speakers but with just setting up my own show if they sound respectable then that's all that matters.
If in the future I start thinking they are ok but not exactly what I want then they are perfect spares.