Powering Danley with Powersoft. Help required

U

Uniz Kazz

Freshman
Sep 2, 2015
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Hi all,


First post so be nice lol. Looking into getting a DSL system and powering it with Powersoft amps. Currently have my eye on 2x SH96 and 2x DBH218. I've been running self powered systems so far and don't have any experience in powered amplifiers. However the more I read, the more confused I get about how to go about powering passive cabinets as everyone seems to have a different opinion on just how much power is required and what is safe. Could anyone recommend to me how I would go about powering this system?


SH96 : (single K20 seems to be a good match for a pair?)
Input Power Rating/ Output Rating (Continuous): 1400 W/ 133 db SPL
Input Power Rating/ Output Rating (Peak): 5600 W/ 139 db SPL
Nominal Impedance: 8 ohms


DBH218: (the switchable ohms adds further confusion for me.. does that change what I need to look at when I'm reading amp specs?)
Input Power Rating/ Output Rating (Continuous): 3,600W/ 141 db SPL 4,000 W
Input Power Rating/ Output Rating (Peak): 14,400W/ 147 db SPL 16,000 W
Nominal Impedance: 1x 2 ohms / 2 x 4 ohms


Would appreciate any light that can be shed on this. I generally have understood that I should be looking at having double the CONTINUOUS power rating available at the same OHMage? How does that work with the switchable Ohms and such? does the calculation change?


Super nooby, but we all have to learn sometime. Hope my time is now.


Thanks in advance
 
Re: Powering Danley with Powersoft. Help required

Hi thanks for the reply,

Why would K2 bridged be a fit for the Sh96s? The M30D I get, as it would bring you to 3,000W once bridged and we're trying to hit 2,800w so a little over I imagine is fine.. but K2 bridged (8ohms) is 3,900W .. isn't that overkill/dangerous? Any chance you can shed some light? Thanks in advance!
 
Re: Powering Danley with Powersoft. Help required

Also, would a single K10 for the subs work? 6,000w per channel @ 2ohm, one channel for each sub? Thanks again.
 
Re: Powering Danley with Powersoft. Help required

For the SH96's, either amp will work. The K2 is If you want the same type of amp as the subs, such as if you will use DSP versions.

The limiters, at least in the K DSP/ X series amps, work great. Having an amp that is "too large" isn't an issue, just set the voltage and True Power limited correctly.

If you have extra K8 amps and want to keep them, an X4 is basically two K8's in one chassis.
 
Re: Powering Danley with Powersoft. Help required

Great, didn't know the dsp within the amp was capable of that, and if you reckon they work great then seems like I might just do that, although I could save some $ if I go with the pair of M30D's. Any insight as to whether a single K10 would power both subs well?
 
Re: Powering Danley with Powersoft. Help required

Uniz Kazz said:
DBH218: (the switchable ohms adds further confusion for me.. does that change what I need to look at when I'm reading amp specs?)
Input Power Rating/ Output Rating (Continuous): 3,600W/ 141 db SPL 4,000 W
Input Power Rating/ Output Rating (Peak): 14,400W/ 147 db SPL 16,000 W
Nominal Impedance: 1x 2 ohms / 2 x 4 ohms
Click to expand...
Here is a little explanation why we have impedance switching on various cabinets.

It gives the user various opportunities to power the cabinets, based on specific needs.

In this case, each of the drivers is 4 ohms.

Some people don't like to load their amps down below 4 ohms. I won't go into the various reasons now.

This would mean they need to operate it in 2x 4 ohm mode. Each amp channel would drive 1 loudspeaker driver.

In the 1x2 ohm mode-the drivers are in parallel, so a single amp channel (that is stable at 2 ohms) could drive the cabinet.

In some cases people are powering the cabinet with older less powerful amplifiers. In the 2x4 ohm mode, this allows older (2 ohm capable) amps to be bridged into each driver.

In some installations, there are very long speaker cable runs to the loudspeakers. The 2x4 ohm mode would have less loss over the cable length. Although it would require a second cable to do this. But in some cases existing cables must be reused.

It is all a matter of compromises. So the switchable impedance give you some choices depending on application and needs.

Agreed that it does add some confusion.
 
Re: Powering Danley with Powersoft. Help required

A K10 will power both subs, just not to max SPL. You'll want the speaker cables thick and short, like 10AWG, 5'. That's about the max output you'll get from a 20A 120V circuit.
 
Re: Powering Danley with Powersoft. Help required

Hi Caleb, I live in the Middle East and power is run at 240v here. Would that change the equation much as far as powering the the subs with a single K10 is concerned (power draw and all) ?
 
Re: Powering Danley with Powersoft. Help required

Ivan Beaver said:
Here is a little explanation why we have impedance switching on various cabinets.

It gives the user various opportunities to power the cabinets, based on specific needs.

In this case, each of the drivers is 4 ohms.

Some people don't like to load their amps down below 4 ohms. I won't go into the various reasons now.

This would mean they need to operate it in 2x 4 ohm mode. Each amp channel would drive 1 loudspeaker driver.

In the 1x2 ohm mode-the drivers are in parallel, so a single amp channel (that is stable at 2 ohms) could drive the cabinet.

In some cases people are powering the cabinet with older less powerful amplifiers. In the 2x4 ohm mode, this allows older (2 ohm capable) amps to be bridged into each driver.

In some installations, there are very long speaker cable runs to the loudspeakers. The 2x4 ohm mode would have less loss over the cable length. Although it would require a second cable to do this. But in some cases existing cables must be reused.

It is all a matter of compromises. So the switchable impedance give you some choices depending on application and needs.

Agreed that it does add some confusion.
Click to expand...


Thanks for the insight Ivan. I'm starting to eye the TH412's over the DBH's. Either a pair of TH412s or 2 pairs of the TH118s. The 118s are very appealing to me due to their portability and scalability, as I'm likely to get smaller cabs down the line for smaller events that don't require as much power and so could just use a pair of 118s rather that drag 412's around. Spec wise it would seem that a pair of 118s would come pretty close to achieving what a single 412 would, any real world impressions you can give me on that comparison? Thanks in advance.
 
Re: Powering Danley with Powersoft. Help required

Uniz Kazz said:
Thanks for the insight Ivan. I'm starting to eye the TH412's over the DBH's. Either a pair of TH412s or 2 pairs of the TH118s. The 118s are very appealing to me due to their portability and scalability, as I'm likely to get smaller cabs down the line for smaller events that don't require as much power and so could just use a pair of 118s rather that drag 412's around. Spec wise it would seem that a pair of 118s would come pretty close to achieving what a single 412 would, any real world impressions you can give me on that comparison? Thanks in advance.
Click to expand...
Everything is a "tradeoff".

THe TH118 is a VERY portable cabinet that packs a lot of punch.

The TH412 has quite a bit more output down in the low 30 Hzish range.

The DBH218 is a very "impactful" sub. Almost as large as the TH412, and larger than the TH118.

For most people, the TH118 is a really good option. You just add more or less depending on the gig. If you have to go up steps to load in- the TH118 wins every time.

But TH118s will cost more to get the same output as DBH218 or TH412.

So you have to weigh cost vs size vs SPL vs low freq extension when choosing subs.
 
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