There's two reasons. Not enough power and the hpf fixed at 18hz. :T
Dayton SA 1000
Why does eveybody use band amps ie Behringer for home theater? When the Dayton SA 1000 is a proper sub woofer amp. and are about on par with price here in AU. NOT TO MENTION DAYTONS ARE AESTHETICALLY BEAUTIFUL VS UGLY BEHRINGER BAND AMPS.
Dayton Audio SA1000 Subwoofer Amplifier Rack Mountable
The Dayton Audio SA1000 is a freestanding, high-power subwoofer amplifier designed for the DIYer, installer, and systems integrator. This unique monaural subwoofer amplifier delivers the raw power of a pro-sound amp, but with the features and flexibility of a dedicated subwoofer amplifier. It can be configured for stacking with other audio components, and includes removable ears for mounting in standard audio racks (2RU). The patented tracking, down-converting power supply ensures headroom for instantaneous power needs and operates cool due to its high-efficiency design. A class AB output stage provides a clean and controlled output signal. From a performance standpoint, a low frequency parametric EQ allows you to boost or cut to custom-tailor the sound to suite the environment of the room. Sophisticated soft clip circuitry provides cleaner transient peaks while protecting your driver from over-excursion. Switchable subsonic filter removes the subsonic information from the signal to tighten the low end response of some subwoofer systems. Bass boost filters add to the low end response without using the built-in parametric EQ. This leaves the parametric EQ function to address room modes to cut out an excessively loud room resonance. The high-pass outputs provides the user the option to feed the signal back into their sound system or distributed audio system.
Manual, automatic on/off or triggered 12V input allows easy integration into automated systems. The stealthy pop-out knobs on the front panel make adjustments easy, while minimizing the risk of accidental disturbance. The subdued brushed black aluminum faceplate allows this amp to cosmetically blend with any type of audio gear. Accepts RCA line-level inputs, includes insulated binding posts for the speaker outputs, and accepts a 12V trigger via a 3.5 mm mini-jack.
Specifications: • Rated Power Output (0.92% THD): 497 watts into 8 ohms, 950 watts into 4 ohms • Signal to Noise Ratio: 98 dB A-weighted • Efficiency: 86% • Input Impedance: 12K ohms • Subsonic Filter: -3 dB @ 18 Hz, Q=0.8 • Bass Boost: +3 dB @ 25 Hz, Q=1.4 • High Pass Output: -3 dB @ 80 Hz, 12 dB/octave • Low Pass Adjustment: 30-200 Hz • Phase Adjustment: 0°–180° • Parametric EQ Frequency: 18–80 Hz • Bandwidth: 0.1–1.0 Q • Level: -14.5 dB to +6 dB • Dimensions: 17-1/2" W x 4" H x 13" D (tabletop configuration) • Power Requirements: 120/230 VAC, 50/60 Hz • Stand-by Power Rating: 120V 24W; 230V 18.4W • Weight: 20 lbs. *Based on one-third power duty cycle
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Dayton Audio SA1000 Subwoofer Amplifier Rack Mountable
The Dayton Audio SA1000 is a freestanding, high-power subwoofer amplifier designed for the DIYer, installer, and systems integrator. This unique monaural subwoofer amplifier delivers the raw power of a pro-sound amp, but with the features and flexibility of a dedicated subwoofer amplifier. It can be configured for stacking with other audio components, and includes removable ears for mounting in standard audio racks (2RU). The patented tracking, down-converting power supply ensures headroom for instantaneous power needs and operates cool due to its high-efficiency design. A class AB output stage provides a clean and controlled output signal. From a performance standpoint, a low frequency parametric EQ allows you to boost or cut to custom-tailor the sound to suite the environment of the room. Sophisticated soft clip circuitry provides cleaner transient peaks while protecting your driver from over-excursion. Switchable subsonic filter removes the subsonic information from the signal to tighten the low end response of some subwoofer systems. Bass boost filters add to the low end response without using the built-in parametric EQ. This leaves the parametric EQ function to address room modes to cut out an excessively loud room resonance. The high-pass outputs provides the user the option to feed the signal back into their sound system or distributed audio system.
Manual, automatic on/off or triggered 12V input allows easy integration into automated systems. The stealthy pop-out knobs on the front panel make adjustments easy, while minimizing the risk of accidental disturbance. The subdued brushed black aluminum faceplate allows this amp to cosmetically blend with any type of audio gear. Accepts RCA line-level inputs, includes insulated binding posts for the speaker outputs, and accepts a 12V trigger via a 3.5 mm mini-jack.
Specifications: • Rated Power Output (0.92% THD): 497 watts into 8 ohms, 950 watts into 4 ohms • Signal to Noise Ratio: 98 dB A-weighted • Efficiency: 86% • Input Impedance: 12K ohms • Subsonic Filter: -3 dB @ 18 Hz, Q=0.8 • Bass Boost: +3 dB @ 25 Hz, Q=1.4 • High Pass Output: -3 dB @ 80 Hz, 12 dB/octave • Low Pass Adjustment: 30-200 Hz • Phase Adjustment: 0°–180° • Parametric EQ Frequency: 18–80 Hz • Bandwidth: 0.1–1.0 Q • Level: -14.5 dB to +6 dB • Dimensions: 17-1/2" W x 4" H x 13" D (tabletop configuration) • Power Requirements: 120/230 VAC, 50/60 Hz • Stand-by Power Rating: 120V 24W; 230V 18.4W • Weight: 20 lbs. *Based on one-third power duty cycle
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1 - 20 of 46 Posts
the ep4000 is cheaper, more than double the power and is not hobbled with an undefeatable high-pass filter
There's two reasons. Not enough power and the hpf fixed at 18hz. :T
950 watts into 4 ohms is plenty for a lot of subwoofers. A 18 hz HPF is perfect for a sub tuned in the 18 - 22 hz range.
No HPF is good for a 15 hz or lower tuning frequency, anything higher and people are buying Reckhorn's or Eq.2 high pass filters to protect their subs from over excursion.the ep4000 is cheaper, more than double the power and is not hobbled with an undefeatable high-pass filter
Both pro amps and plate amps that have a built in hi-pass filter have their place. It all depends on the sub design and what you want to achieve.
Plenty of power here. You can add a few dB to this figure per the RS SPL meter compensation table.
http://www.hometheatershack.com/for...3694-cs-18-t-duo-series-2-a-3.html#post425541
The subs are now well integrated into the room and system, no skipping, boominess or any of the initial problems associated with new subwoofer setup. I need to update my thread to include the considerable changes.
The SA1000 is doing a very good job in my system and I highly recommend it.
http://www.hometheatershack.com/for...3694-cs-18-t-duo-series-2-a-3.html#post425541
The subs are now well integrated into the room and system, no skipping, boominess or any of the initial problems associated with new subwoofer setup. I need to update my thread to include the considerable changes.
The SA1000 is doing a very good job in my system and I highly recommend it.
I have four of the Dayton amps. Just to clarify, the old model HPSA1000 had an undefeatable high pass filter. The current model SA1000 does not have an undefeatable high pass filter. There is a switch on the back of the amp that turns the filter on or off.
The amps can also be internally modified. Two of my amps are modified for frequency response and limiting.from manual when referencing the switch said:Selects a subsonic filter with -3dB @ 18Hz, Q=.8. Allows the user to remove the subsonic information from the signal and tighten the low end response of some subwoofer systems.
The dayton's look pretty decent. They arent bridgeable though?
From what ive seen of tests they also seem to lack in the 4ohm department. (advertised 1000W, measured only 580).
For me i'd still go with the ep4000 or similar. i like the headroom and possibility of adding more subs or changing drivers. Just headroom i guess you could say. With the dayton i'd basically be maxed out on my tempest-x (going of measured) though i could take the eq2 out of the loop.
From what ive seen of tests they also seem to lack in the 4ohm department. (advertised 1000W, measured only 580).
For me i'd still go with the ep4000 or similar. i like the headroom and possibility of adding more subs or changing drivers. Just headroom i guess you could say. With the dayton i'd basically be maxed out on my tempest-x (going of measured) though i could take the eq2 out of the loop.
Love my EP4000. I had to swap the fan for a much quieter one but that went easily. As a nurse I can say it was easier than many nursing procedures and I have a tremor.
Why pay more for less?
Pro Sound equipment is made to take a beating, Those dayton amps, while nice, are not built to withstand the same stress a pro amp would see in the field. $$$ to watts ratio is better. Distortion numbers on pro amps tend to be fantastic. And if you modify the fan, Its quiet enough to work perfectly in almost any size space.
Pro Sound equipment is made to take a beating, Those dayton amps, while nice, are not built to withstand the same stress a pro amp would see in the field. $$$ to watts ratio is better. Distortion numbers on pro amps tend to be fantastic. And if you modify the fan, Its quiet enough to work perfectly in almost any size space.
Bang for the buck.
There's an EP2500 for sale here with fan mod for $200 plus shipping. Shoot, even brand new they're still a fantastic value.
There's an EP2500 for sale here with fan mod for $200 plus shipping. Shoot, even brand new they're still a fantastic value.
Personally, the exterior aesthetic quality of my sub amp is not a concern, but I know I'm a bit of a weirdo.
I'm with Theresa. Love my EP4000. I got it from the sale-forum here at HTS, for $275-shipped w/ fan already modded.
One of my favorite things is the ability to drive 2ohms/ch (stereo mode). Even though I'm only driving 4ohms/ch, it means that I'm running well within spec instead of on the edge.
I'm with Theresa. Love my EP4000. I got it from the sale-forum here at HTS, for $275-shipped w/ fan already modded.
One of my favorite things is the ability to drive 2ohms/ch (stereo mode). Even though I'm only driving 4ohms/ch, it means that I'm running well within spec instead of on the edge.
The HPSA was discontinued and the SA is the newer version.
Found this on another forum.
My hunch is that PE had to change the name and the design slightly because the HPSA-1000 was shown to deliver less than rated power. I believe it was tested to actually deliver about 600W into a 40Hz sine wave. I'm not knocking it, mind. I'm using an HPSA-1000 right now in my nearfield system and it drives a sealed Maelstrom-X just fine.
Note that the SA1000 is listed as ~100W less powerful at 4Ω. I would guess that the amp section is likely the same - they weigh the same - but the rating is closer to reality.
Found this on another forum.
My hunch is that PE had to change the name and the design slightly because the HPSA-1000 was shown to deliver less than rated power. I believe it was tested to actually deliver about 600W into a 40Hz sine wave. I'm not knocking it, mind. I'm using an HPSA-1000 right now in my nearfield system and it drives a sealed Maelstrom-X just fine.
Note that the SA1000 is listed as ~100W less powerful at 4Ω. I would guess that the amp section is likely the same - they weigh the same - but the rating is closer to reality.
I have found that the SA series do not have enough juice to power what i want as do probly many other folks on top of that you can obtain more power for less money including filters then you can with the Daytons. I will say that they have there place though.:T
It drove me nuts trying to get the gain structure set to keep it from going into protection when running my THT, maybe I had a faulty unit. I never could get it to work right, so I bought a behringer 2500 and have been happy ever since doing a fan mod.
What did you use for a hi-pass filter?It drove me nuts trying to get the gain structure set to keep it from going into protection when running my THT, maybe I had a faulty unit. I never could get it to work right, so I bought a behringer 2500 and have been happy ever since doing a fan mod.
I don't use a high pass filter since it is not needed on a THT per Bill's instructions.
Hi Mojave,
How did you modify your SA1000 amps? I downloaded a .pdf on modifying the high pass filter from Parts Express. When I emailed them to ask if they sold the capacitors needed for the mod, they replied by telling me that they did not sell those capacitors and they were pulling the .pdf off the site. They also said that Dayton will not give out the schematics. I am in the USA right now but my (2) SA1000's are in Thailand. I want to adjust the high pass filter to 12hz. I do not know the voltage or type of capacitor required. Where did you buy yours? What are the specs for the parts? I would like to buy the capacitors in the next week so I can bring them with me to Thailand. Thank you.
How did you modify your SA1000 amps? I downloaded a .pdf on modifying the high pass filter from Parts Express. When I emailed them to ask if they sold the capacitors needed for the mod, they replied by telling me that they did not sell those capacitors and they were pulling the .pdf off the site. They also said that Dayton will not give out the schematics. I am in the USA right now but my (2) SA1000's are in Thailand. I want to adjust the high pass filter to 12hz. I do not know the voltage or type of capacitor required. Where did you buy yours? What are the specs for the parts? I would like to buy the capacitors in the next week so I can bring them with me to Thailand. Thank you.
1 - 20 of 46 Posts
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