Vermeleon69 this is the amp I purchased to power my sub. I reviews it has 900 watts in bridged mode available under the best conditions. I purchased if for 199 when it was on sale though I think the price went up.
http://www.carsound.com/reviews/amps/Ultimate_DT2-800.htmlUltimate Sound DT2-800
www.ultimate-sound.com Ultimate Sound introduces the competition scene to class T technology.
Ultimate Sound DT2-800 Specs
Price & Contact: $699.95; 909-594-2604,
www.ultimate-sound.comAll measurements @ 14 volts unless otherwise specified.
Frequency Response (4-ohm IHF Load, 20 Hz to 20 kHz, 1kHz Ref.): +0 dB, -1.2 dB
L/R channel error max deviation 20 Hz to 20 kHz: 0.06 dB
Phase Response (4-ohm IHF Load, 20 Hz to 20 kHz, 1 kHz Ref.): +40 degrees, -92 degrees
Signal-to-Noise Ratio (Below Rated Output, ā??Aā? weighted): -89 dB
Distortion at Rated Output @ 1 kHz: 0.025% @ 800 watts
Output Power(resistive) minimum output, 20 Hz to 20 kHz @ 1%THD+N, all channels driven into 4 ohms: 205 watts x2 @ 14 volts; 204 watts x 2 @ 12.8 volts; 168 watts x2 @ 10.5 volts
Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1%THD+N, all channels driven into 2 ohms: 259 watts x 2 @ 14 volts; 259 watts x 2 @ 12.8 volts; 207 watts x 2 @ 10.5 volts
Output Power (4-ohm IHF Reactive Load @ 60 Hz to 1% THD+N): 952 watts
Crosstalk (Referenced to Rated Output, 20 Hz to 20 kHz): -52.6 dB
Damping Factor @ 100Hz, 2 ohms: 42
Voltage for Rated Output: 351mV to 13 volts
Idle Current Draw: 2.8 amps
Current Draw @ 1/3 Maximum Power: 33.5 amps @ 297 watts
Efficiency @ 1/3 Maximum Power: 63%
Power-Up Noise: 48 dB SPL
Power-Down Noise: 45.6 dB SPL
by Brian Smith
The DT2-800 is a two-channel, full range, switching amplifier with power ratings of 200 watts x 2 or 800 watts x 1 into 4 ohms, and 400 watts x2 into 2 ohms. Features include defeatable high and low pass filters with variable cutoff frequencies, variable bass boost, 12 dB input pad, and RCA line level outputs.
Performance
Ultimate calls this bad boy a class T. While Iā??m not sure what happened to most of the classes E through S, there are a few things that are obvious; itā??s a switching amp, itā??s capable of full range operation, and it seems to operate reasonably well. As one might expect, thereā??s a fair amount of switching noise on the ampā??s outputs. However, itā??s well above the audible frequency range and the amp will actually reproduce 20 kHz with a good amount power. This would put it on the ā??exceedingly rareā? list and ranks it as a first for this reviewer.
When measuring the power response of an amp that has a substantial amount of ultrasonic noise, a compromise or two has to be made. The input to our distortion analyzer is filtered during such a test. This rids the measurement of high frequency noise that would otherwise cause artificially low results. The catch is that if you filter too much, you donā??t get an accurate measurement of output power at high frequencies. With our standard power response test, the DT2-800 only managed about 150 watts x 2 at 1% THD+N into 4 ohms. However, with a little filter manipulation, things fell into place. The amp still came up a bit short of itā??s 2-ohm rating, producing about 350 watts x 2 through most of the audio bandwidth, with a minimum of about 260 watts x 2 @ 20 kHz. Bridged output into our 4-ohm reactive load measured an impressive 952 watts, although the internal protection circuit triggers just after the amp begins to clip.
Efficiency at 1/3 power measured 63 percent, and efficiency at full output measured about 70 percent. In other words, about the same as class D with full range operation thrown in as a bonus.
Connections & Adjustments
Connections to the DT2-800 include captive style terminal blocks for power and speaker connections, RCA inputs and RCA line level outputs. Power and ground connections easily accept 4-gauge bare wire while speaker connections will handle slightly larger than 8-gauge wire. Adjustments include input sensitivity (with a 12 dB pad), bass boost (0 - +18 dB @ 40 Hz), high pass filter enable and cutoff frequency adjustment, and low pass enable and cutoff frequency adjustment. Both filters have a cutoff frequency range of about 50 Hz to 5.5 kHz.
Installation
The DT2-800ā??s input section provides flexibility in a very straightforward manner. The internal crossover is a three-way unit capable of low pass, high pass, or band pass operation. The addition of the 12 dB pad on the input sensitivity control also increases installation flexibility by allowing the amp to be matched to a wide range of input sources. All of the controls are arranged sensibly ā?? everything works much as one might expect, and the overall construction appears to be both hefty and well thought out. These days, thatā??s no small compliment.
Of course, the big question is, what are the major advantages of a full range, switching amplifier? The DT2-800 gives the consumer another, more efficient choice that they didnā??t have before. Like an A/B amplifier, it can be used to power an array of applications, including subwoofers, mid-woofers, midranges, tweeters, component sets, coaxials, or any other full-range or bandwidth-limited application. The current batch of Class D switching amps are limited to powering subwoofers, and, as weā??ve said many times, a class A/B amp in this power range is a huge current hog thatā??s unlikely to meet its full potential with a wimpy automotive charging system. With a more efficient design, youā??ll get closer to that magical kilowatt of output under real-world conditions.
Ultimate Sound DT2-800 Specs
Price & Contact: $699.95; 909-594-2604,
www.ultimate-sound.comAll measurements @ 14 volts unless otherwise specified.
Frequency Response (4-ohm IHF Load, 20 Hz to 20 kHz, 1kHz Ref.): +0 dB, -1.2 dB
L/R channel error max deviation 20 Hz to 20 kHz: 0.06 dB
Phase Response (4-ohm IHF Load, 20 Hz to 20 kHz, 1 kHz Ref.): +40 degrees, -92 degrees
Signal-to-Noise Ratio (Below Rated Output, ā??Aā? weighted): -89 dB
Distortion at Rated Output @ 1 kHz: 0.025% @ 800 watts
Output Power(resistive) minimum output, 20 Hz to 20 kHz @ 1%THD+N, all channels driven into 4 ohms: 205 watts x2 @ 14 volts; 204 watts x 2 @ 12.8 volts; 168 watts x2 @ 10.5 volts
Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1%THD+N, all channels driven into 2 ohms: 259 watts x 2 @ 14 volts; 259 watts x 2 @ 12.8 volts; 207 watts x 2 @ 10.5 volts
Output Power (4-ohm IHF Reactive Load @ 60 Hz to 1% THD+N): 952 watts
Crosstalk (Referenced to Rated Output, 20 Hz to 20 kHz): -52.6 dB
Damping Factor @ 100Hz, 2 ohms: 42
Voltage for Rated Output: 351mV to 13 volts
Idle Current Draw: 2.8 amps
Current Draw @ 1/3 Maximum Power: 33.5 amps @ 297 watts
Efficiency @ 1/3 Maximum Power: 63%
Power-Up Noise: 48 dB SPL
Power-Down Noise: 45.6 dB SPL
http://www.sounddomain.com/sku/ULTDT2800-----------------\
Ultimate DT2-800
2-Channel Amp
click here to view an enlarged image
Category Average Ratings *
Overall Rating
Value
Sound Quality
Design/Appearance
Durability
Features
* based on 4 reviews
Own this item? Write a review! Read reviews
SoundDomain.com Overview
SoundDomain.com has made a special purchase on the Ultimate DT2-800. This is a great opportunity to purchase a cutting-edge Class T amplifier at a super blowout price! Hurry - supplies are limited!
From the beginning, Ultimate Sound's singular mission, to design and build exceptional autosound products, has fostered a commitment to product research, development and innovation that has been directly responsible for the success and growth of the company. Ultimate Sound builds exceptional products to exacting standards and has earned a worldwide reputation for quality. Digitalis is a drug that helps the heart by making the beat stronger. Now, Ultimate Sound prescribes Digitalis amplifiers to do the same for your sound system! Since the introduction of the Compact Disc, digital technology has been advancing the state of the art of audio reproduction. Recording and playback technology continues to improve, and now the engineers at Ultimate unveil the latest in digital amplifier technology. Using pulse width modulation techniques, these new amplifiers make it possible to deliver enormous power to your speakers and do it efficiently without the need for special high power alternators or a trunk full of batteries. The DT2-800 is a 2-channel full range amplifier that delivers more than 800 watts into a bridged 4-ohm load, or 2 x 400 watts into 2-ohm loads. With an overall efficiency of 80% or more, and a fully regulated power supply, this digital power plant really delivers. Unlike conventional "high current" amplifiers that waste as much power heating up your trunk as they deliver to your speakers, Digitalis amplifiers keep their cool and put the power to work where it does the most good - moving those voice coils! The heart of the DT2-800 is a Class T drive module that directly modulates the amplifier's power supply through a process known as "Digital Power Processing" (DPPā?¢). Sophisticated logic circuits control the output MOSFETs according to digital algorithms for full range reproduction with a depth of image and presence that recreates the true feel of the live performance. So, whether you're looking to power high output subwoofers, or effortless full-range reproduction with unlimited headroom, Digitalis amplifiers are the perfect prescription!
Features:
Class T Design
Over 80% Efficiency
Copper Finish Aluminum Heatsink and Endplates
Full MOSFET Circuitry
Variable 12dB / Octave Low, High, and Bandpass Crossovers
Variable 45Hz Bass Boost
Preamp Outputs
4-Way Protection Circuitry
2-Channel Amp Specifications
Amplifier Type: 2-channel
RMS Power: 200W x 2
Bridged RMS Power: 800W x 1
THD at Rated RMS Power: <0.1%
Speaker Level Inputs: No
Preamp Outputs: Yes
Built-In Crossovers: HP/LP
Bass Boost: 0 - 18 dB
Frequency Response: 15-25,000 Hz
Channel Separation: n/a
Signal to Noise Ratio: >90 dB
Fuse Rating: 3 x 40 amps
BTW I fried one of my old soundstream reference series amps REF700. It was really a great amp untill it took a shat on me lol.