Right Driver for this amp and box?
I bought this amp to replace an old Acoustic Research S12HO Sub Amp. The Box is 13.5 High X 16 Wide x 16 Deep, Its a downfiring sub box with a 3" Round Port Thats 4 5/8's long. What speaker would fit this application well?
without splitting hairs and disappointing results any good 12 in with big magnet, 1.5in or larger voice coil with roll edge, rubber , foam etc will work[thump] the efficiency of the woofer and exact tuning can be easily calculated from the spec sheet of the woofer... check the buyout page for the auto 12 in woofer if bargain repair is your option
Date published: 2013-01-29
Another discrepancy with the actual pic and the manual...manual shows power plug only has two connections. Pic shows the usual 3-prong which may lead to hum. So which is it?
This product is shipping with a two-prong power cable and connection. We'll have the photos corrected shortly, I apologize for any confusion.
Date published: 2012-07-05
CAN THIS AMP BE DAISYCHAINED FROM A POWERED SUBWOOFER? FOR EXAMPLE: 7.1 RECIEVER TO POWERED SUBWOOFER AND THEN TO THE DAYTON AUDIO SPA250 SUB AMP.
The SPA250 features line level (RCA) inputs and outputs, so you could certainly deliver signal to the SPA250 first, then on from there to the existing powered subwoofer. In the case of your example, it would be dependent upon the powered subwoofer; if line level outputs are present on that subwoofer, then yes, you could connect everything exactly as you describe.
Date published: 2013-02-23
Anyone installed the SPA250 subw amp in a Cambridge Basscube 12S?
I appears that two 3/4" MDF spacers would give the depth needed (12S has a 3-1/2" deep cavity for the amp); W and H are OK. Any guidance would be appreciated
We do not have any kid of cross-reference by brand, model, or anything of the sort, however, if you are willing to insert the spacers to provide the clearance required, the SPA250 should provide good performance in your situation so long as you ensure a good seal between the amp and the enclosure. The SPA250 is more powerful than the amp you're replacing, so make sure to start with the gain turned down, and gradually increase to blend with the rest of your system.
Date published: 2013-02-24
What is the "normal" operating temperature?
Has anyone else experienced this amp get HOT? After about an hour of use at 1/2 gain and 1/2 Freq (~110hz) mine gets too hot to touch and will go into overheating/protection mode. I have this amp pushing 4 Dayton Audio 8" DVC Subwoofers (SD215A-88) each in its own 1cu ft sealed enclosure wired for a 4 ohm load. I will wait to hear a few opinions before I give my review. Thanks!
The SPA250 is designed mainly for home theater use. It should be fine driving those four DVC subs so long as everything is wired correctly to present a 4Ω total load to the amp, and there are no strands of loose wire shorting or arcing somewhere. The amp is not designed to be used for musical instrument amplification or professional sound reinforcement, and would be liable to overheat and activate the protection circuitry under such conditions. If you're not using the system for karaoke, DJing, live music performance or similar, I would suggest first checking and double checking all wiring and connections. If you don't find anything amiss, please give us a call at 1-800-338-0531 so we can assist you in troubleshooting.
Date published: 2012-07-20
2x CV 12in. subs. Need amps for both. Q 1- What amp would you recommend? Q 2- How would i connect both to a Sony STR-DH520 w/ single RCA sub out?
Any help would be greatly appreciated! Sorry for the long-winded question!
ADJUST GAIN AND 'Y' THE RCA TO BOTH AMPS,,,FACTORS ON AMP CHOICE , BUDGET, ROOM SIZE, VOLUME OF BASS ,[POWER HANDLING ] ALL CONTRIBUTE TO THE CHOICE OF AMP[THE 240 WATT WOULD MEET YOUR NEEDS FINE AND NEVER STRAIN]
Date published: 2012-07-24
Can I screw this amp to the back of a box?
I have a SONY Sawm40 sub. The amp died and I need to replace it. The factory amp was flat and was screwed to the back of the box. Can I do the same with this amp? Or will I have to cut a hole in the sub box for the Dayton amp to fit?
The Dayton requires a hole to be cut out of the box. You might be able to surface mount with special hardware - that would depend on how creative you wish to get
Date published: 2012-07-23
Will the driver magnet proximity affect the AMP performance?
When placing this in my existing cabinet, the Magnet on the subwoofer will be about 1 inch (or less) from the installed plate amp.Will the magnetic filed affect the amp performance?
I can't say it will have no effect, but my guess would be that since the magnet and amp are not moving around with respect to each other, it will probably work just fine. I've seen experimental systems where the amplifier was integrated into the magnet housing and it worked fine. I'd be concerned if the magnet were moving around in close proximity to the amplifier, but that isn't the case here.
Date published: 2012-10-24
Would this sub amplifier plate be an adequate replacement for an older Klipsch sub model KSW-150? Current plate amp measures 10x10 with a 9" cutout.
This sub would be powered by a Pioneer receiver model vsx-51.
This is a very good amp. Other than having to possibly modify the cabinet it should work well.
Date published: 2012-08-17
Why the low volume
I currently run this amp w/ the Dayton 10" RSS265HO. The subwoofer is in a 1 cuft enclosure (not including amp) w/ the bass boost active.When I modeled this, it looked pretty good but the actual sound level is low. I have played with my receiver settings but really don't think that the gain should have to be 3/4 to full in order to hear it.Any insight to this problem? I have it hooked up between the mono low level input and the LFE on a Yamaha RX-a1020.
I have a Parts Express sub, the amp went out before too long, I bought this amp and put it in about 8 years ago, still great! Don't know if that really helps you.
Date published: 2012-09-22
connecting high-level and line-level inputs at same time
will it harm the amp if you connect the high-level and line-level inputs at same time? if not, is there any downside to this?
The amp has associated circuitry with these dual inputs and the "Auto On" feature. The detailed description does not address using both inputs as a feature so I would not advise doing so. Download the manual and review it.If you desire to use your sub setup on two systems why not use an input or multi speaker selector switch and be safe.If you connect two different audio sources that are not powered by the same receptacle you could experience a ground loop problem and damage some or all of your gear.
Date published: 2012-10-31
Fitting to the box
I currently have a JBL Venue Sub 12 with a blown amp and am looking to replace it with this amp. One customer indicated he used an older model with the same dimensions (Dayton Audio SA240) as the replacement for his JBL Sub 12. The amp on the JBL is tall and narrow, I think at least 13 inches tall or more (don't have it near me right now). My question is how one would fit the 8.5 x 8.5 plate of this amp into this box and eliminate any gap. Are there products to do this? Would foam work well enough or would it destroy the perfomance of the sub? Thanks in advance.
The best way to adapt this amplifier to an existing opening is to block the original opening with a sheet of wood that has an 8-1/2" square opening in it. Foam would not provide a proper seal by itself.
Date published: 2012-11-14
Can I use this without the plastic back piece?
Can I remove the plastic back piece or is the bass boost switch part of that? I want to repower a ported subwoofer, minimizing the change in enclosure volume by removing the plastic back piece.
Check to see that the plastic back isn't part of the air seal. If it's not you can probably go ahead but doing this may void the warantee. Check with PE first.
Date published: 2012-12-28
4 Bass Shakers in Parallel/Series, how to wire to my PC sound?
I have 4 Bass Shaker Pro's wired up in a series for 4 ohms each. I want to use them with my PC. I assume I use a "Y-adapter" out of my sound card first, then one goes to my normal speaker/sub setup, and then I get lost. The whole high-output, lfe, all has me confused. The wire off the shakers looks to fit in the High-output jacks on the amp, but I think I'm supposed to use the LFE which is a normal RCA jack...Any help on this situation would be greatly appreciated.
First decide your desired impedance. Speakers in series add together and are half is a speaker in parallel. For example 2 - 4 ohm speakers in series are 8 ohms and 2- 8 ohm speakers in parallel are 4 ohms.Using series and parallel with 4 speakers can be wired to be either 4 or 8 ohms. Since you have more power than you need, I would wire for 8 ohms to have the lower cross point at 12 rb.
Date published: 2012-11-18
Will the amp work in 2 ohm with dual voice coils?
I have a subwoofer and the cabinet says it is 4 ohm. It has dual voice coils that I want to run in parallel. That will mean the amp will run at 2 ohms I believe. Will this fry the amp?
If the cabinet says the "system" is rated 4 ohms with a DVC woofer, that may mean two 8 ohm coils in parallel. If the coils are indeed 4 ohms each and you run them in parallel, you will indeed have 2 ohms nominally. My guess is that this amp isn't going to like a 2 ohm load for very long. Better to buy an amp spec'ed for 2 ohms if that's what you need.
Date published: 2012-12-14
Is this a good fit for my sub?
I have a 10" inwall 200W sub rated at 8 ohms. If i wire it directly to the amp, at what impendance will it run at? The specs say this amp will run at 150W at 8 ohms. Will it run at 8 ohms since my sub is rated at 8 ohms? Please explain.Thanks,
The speaker impedance will determine what the amp "sees". In the case of an 8 ohm woofer the amp will deliver 150 watts.
Date published: 2012-11-27
I see the amp has a cover on the inside... I assume if it is absent there will be lots of air blowing through the inputs and switches?
answer: yes. You NEED the cover
There are many reasons. One is to play a role in sealing the unit and keeping your cabinet air tight - whether ported or sealed. The other is to keep internal stuffing off the components. Amps generate heat and you want to contol what gets near them. The covers function is for both acoustic and safety reasons.
Date published: 2013-01-06
Line out work with power off.
I would like to run from my source,to this sub amp, use the rca line out to my dayton t-amp for my mids/highs.If I turn off the sub amp, will the signal still pass through? So I can run subless late a night?
Yes the line-out on this amplifier is a simple pass through and will work with the power turned off.
Date published: 2013-01-25
Can the the dayton 250 be mounted sideways on an existing sub box?
i am trying to attach new amp @ same place as old amps placement
NO,it has an accelerometer it knows where the center of the earth is.outside of earths gravitational pull it gets confused,which way is up?so yes,as long as its in outer space.we all know how electrons in the valence orbit get screwed up w/out gravity.
Date published: 2013-11-28
Could someone explain the difference between •Low-level, high-level, and LFE inputs on the amp when connecting to a mixer. Not sure what input I would used to the amp and then from the amp to powered speakers
LFE input is "Low Frequency Effects". This is an a/v output used for sounds in videos like explosions or crashes that are louder than the normal music or vocal signals found in the normal outputsThe high level input is for connecting the speaker out of your receiver, thelow level input is for a line low level or mixer output signal.The high level outputs are the upper sounds and power for your full range speakers.
Date published: 2014-02-09
WILL THIS REPLACE MY Acoustic Research S115ps 15" Subwoofer Aplifer?
The old amplifer deminsions are 8 1/4" W and 11 1/4" H. Any suggestions as to a replacement amplifier?? Thanks.
This depends on the power of the original amplifier. With the dimensions you listed, there will be modifications required to get it to fit in the enclosure.
Date published: 2013-01-07
How does this hookup to a Dayton RS-HF subwoofer?
This plate amp has quick connects which don't look like they fit with the Dayton sub which looks like it accepts bare wire. I'm confused. Thanks for the help.
You can cut off the quick connects and strip the wires to connect directly to the woofers push terminals.
Date published: 2013-01-12
Hook a subwoofer and 2 bass shakers
1. I intend to use the plate amp to drive my 12 inch subwoofer and and the low- two bass shakers. Which input(s) should I use to connect the plate amp to my receiver?2. Should I be using the low level input and high level output for my bass shakers? In what configuration (series/parallel) should I be connecting my two bass shakers?3. How do I calculate the impedance for the total setup (or should I worry about that)?Please enlighten. I am a newbie at this. Thanks!
Use the LINE [lo] outputs from your rcvr, preferably the [5.1] LFE output [mono] and connect using a "Y" RCA cable to the line in on the plate amp.AMP ouput: use one output for your sub and connect the shakers in series to the other output. This will balance well because the sub wants full power and the shakers can take 50W x 2 = 100W+.
Date published: 2012-02-24
which output signal do i use to hook up 4 dayton audio pucks to this amp? the high level out or theoutput lead for subwoofer?
recievers lfe will be connected to this amp.
The pucks can be thought of as woofers without the cone. They are relatively low impedance so you should connect them like a speaker.
Date published: 2012-05-04
SPA250 Bass Boost Switch?
The location of the bass boost switch is labeled on the plastic housing adjacent to a rubber plug. Removal of the plug reveals an approximately 1/4 inch hole and a view of a short metal strip (apparently attached to a circuit board), but no obvious switch. How do I activate the bass boost?
The switch for the bass boost feature is a *very* small switch. It is a typical slide switch, just much smaller than you may be accustomed to seeing. After removing the rubber plug, use a very small screwdriver or other object to carefully manipulate the switch. I've marked the slider and the direction of travel in the photo below, please excuse the cell phone quality of the picture.
Date published: 2013-03-28
Bass boost switch on SPA250
I just got mine installed.. Just to confirm, when the amplifier controls and heatsink are facing me, the rubber plug for the bass boost switch is on the top right hand side. When I remove the plug the switch was to the left out of the box. I am assuming the bass boost was off. I have turned it to the right and it should now be on. Is this correct?
That is correct, in my experience. However, there may be variations on this part between production runs, so there is a slight chance that it may be different.If you are unsure hook it up to your computer, Google 35hz test tones and try it both ways. It will become very obvious which is on and which is off then as the boost is a 6db bump centered at 35hz.
Date published: 2012-06-01
High Level inputs without main speaker out?
According to the manual, the high-level inputs appear to be configured for main speaker pass-through, with a fixed 6 dB/octave high pass filter set at 125 Hz for the speaker outs. (This is far less than ideal, for my purposes)1. Does the low-pass filter frequency adjustment still work with high-level inputs, or is the low-pass frequency fixed when high-level inputs are used?2. Are there any problems with connecting the same full-range outputs from an amplifier to both both the main L/R speakers AND the high-level subwoofer inputs?
All the controls including the low-pass filter adjustment on the Dayton Audio SPA250 are fully operational with either the high-level or low-level inputs.There are no issues with connecting your main speakers and the subwoofer high-level inputs in parallel to the same amplifier. The input impedance on the high-level inputs is high enough that the additional loading on the amplifier is inconsequential. The only concern is whether your main speakers will be operated at a frequency or amplitude that would stress them.Note: Though the high-level high-pass output may have a seemingly high 125Hz cut-off frequency, the rate of roll-off is only 6dB/oct. Given the impedance rise associated with the resonance of most speakers, the effective roll-off will not occur until below resonance where the speaker should be protected. It might be worth trying the high-level outputs.
Date published: 2012-06-05
Has anyone experienced the fuse blowing on there Dayton Audio SPA250 250 Watt Subwoofer Plate Amplifier?
My Dayton Audio SPA250 250 Watt Subwoofer Plate Amplifier fusehasd blown I tried a replacement and it also blow any ideas what could be the problem? Typically what can cause the fuse to blow?How do you diagnose the problem? Can the Amp be switched on without a speaker?
First - do not turn the amplifier on without a matching woofer in the appropriate cabinet. Amps need to "see" a load to work or things happen - like capacitors blowing etc... That can be one cause of a blown fuse. Other causes can be unstable power from your wall. Voltage spikes of too low. Do you have other power demanding items on the circuit? Finally, is the signal you are supplying it meeting specs? If not - it may spike the amps boards and demand too much from the amp sending itself into protection and blow the fuse. Other than that - if you've followed the instructions correctly - only then you should consider that you have a defective unit.
Date published: 2012-06-12
How do I hookup 3 Aura AST-2B-4,Pro Bass Shakers to Dayton SPA250 250 watt amp to Pioneer VSX-1021-K receiver?
I'm new at this but I think I have it somewhat figured out. I wired 3 Aura pro bass shakers in series to my theater seats. I ran a Y splitter cable fron the receiver's pre-out connector to the subwoofer and the Dayton amp. All the hookup I see talks about 2 & 4 speaker wiring, nothing about wiring 3 speakers. My questions are; is it okay to wire 3 bass shakers in series? What kind of performance can i expect with this setup? Am I pushing the right equipment? What should I set my amp freq to? The last amp (returned) Audiosource Amp100 worked okay for one bass shaker but the performance got worse with with each bass shaker I wired in series so I returned the amp. Thanks for any feedback.
It's all about impedance. 4 is always the best number as you wire 2 in series and then those in parallel. You end up with the same impedance as just 1 - easy for an amplifier to power. 3 is hard to create a wiring pattern for, unless each has a very low impedance to begin with... It wasn' the Audiosource that was the problem - it's attempting the '3".
Date published: 2012-06-18
I am assuming this can be a drop-in replacement for an SA240B in a Titanic 10" sub? My SA 240B seems to have died.
Yes - the cutouts are the same, and the specs are within range of each other. You should expect the performance to be a bit better. The new amp is more linear as impedance decreases meaning your lower frequencies should have more presence and extension.
Date published: 2012-07-04