July 28th, 2021, 10:12 pm
July 28th, 2021, 10:28 pm
David McGown wrote:One of my Dayton subwoofer plate amps popped and started oscillating over the weekend. Shut it down but looking for replacements. It is an old SPA200 (replaced by the SPA250, same size). Figure it lasted this long I shouldn't complain. Anyway, i am looking at options, I have a pair of SPA250s on backorder at Parts Express, but was wondering whether it would be better to go with something like a Crown XLS series or Behringer Class D rack mounted amp that has DSP features for crossover. I would need something that has the flexibility to select a fairly low crossover frequency (40Hz), 4th order to blend with my fullrange speakers. Also intend on taking input from the speaker output (I can build an attenuating network). I figure Tom and others have experience in this area. Also, I am not sure if I would need a single stereo amp and have low pass capability in each channel, or would need to buy two amps and bridge them. Any suggestions would be appreciated!
David
July 28th, 2021, 10:43 pm
SoundMods wrote:David McGown wrote:One of my Dayton subwoofer plate amps popped and started oscillating over the weekend. Shut it down but looking for replacements. It is an old SPA200 (replaced by the SPA250, same size). Figure it lasted this long I shouldn't complain. Anyway, i am looking at options, I have a pair of SPA250s on backorder at Parts Express, but was wondering whether it would be better to go with something like a Crown XLS series or Behringer Class D rack mounted amp that has DSP features for crossover. I would need something that has the flexibility to select a fairly low crossover frequency (40Hz), 4th order to blend with my fullrange speakers. Also intend on taking input from the speaker output (I can build an attenuating network). I figure Tom and others have experience in this area. Also, I am not sure if I would need a single stereo amp and have low pass capability in each channel, or would need to buy two amps and bridge them. Any suggestions would be appreciated!
David
As it turns out -- I found that the older Dayton amps. did not like to drive impedance's below 4-ohms and they didn't have enough heat removal in terms of external heat sinks.
I believe their current products should drop in to your subs with no problems. In my case I added a 1-ohm resistor in series with my sub and added heat sinks. It kicks ass and takes names.
July 28th, 2021, 10:47 pm
FerdinandII wrote:SoundMods wrote:David McGown wrote:One of my Dayton subwoofer plate amps popped and started oscillating over the weekend. Shut it down but looking for replacements. It is an old SPA200 (replaced by the SPA250, same size). Figure it lasted this long I shouldn't complain. Anyway, i am looking at options, I have a pair of SPA250s on backorder at Parts Express, but was wondering whether it would be better to go with something like a Crown XLS series or Behringer Class D rack mounted amp that has DSP features for crossover. I would need something that has the flexibility to select a fairly low crossover frequency (40Hz), 4th order to blend with my fullrange speakers. Also intend on taking input from the speaker output (I can build an attenuating network). I figure Tom and others have experience in this area. Also, I am not sure if I would need a single stereo amp and have low pass capability in each channel, or would need to buy two amps and bridge them. Any suggestions would be appreciated!
David
As it turns out -- I found that the older Dayton amps. did not like to drive impedance's below 4-ohms and they didn't have enough heat removal in terms of external heat sinks.
I believe their current products should drop in to your subs with no problems. In my case I added a 1-ohm resistor in series with my sub and added heat sinks. It kicks ass and takes names.
I see those film bypass caps in there, Walt......you can't fool us.
July 29th, 2021, 7:47 am
July 29th, 2021, 8:55 am
DaveR wrote:I use Crown XLS amps for subs these days. They're an excellent low cost high power solution. The fact that they're not mounted in the sub cabinet is a good thing for several reasons. However, if you would prefer to replace your plate amp with another I have an SPA250 that's looking for a home.
July 29th, 2021, 9:31 am
July 29th, 2021, 10:00 am
July 29th, 2021, 8:48 pm
July 31st, 2021, 2:25 pm