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Theta Digital - Dreadnaught D - Class D Modular Amplifier
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ThetaDreadnaughtD
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Theta Digital - Dreadnaught D - Class D Modular Amplifier
The Dreadnaught D brings the world-class performance or Theta Digital's Prometheus monblock amplifiers to users who require the finest multi-channel performance plus world-class flexibility.
Important Notice:
It is imperative that the Dreadnaught D be connected to a ground via its three wire AC power cord. It is important that the AC power outlet, which the Dreadnaught D is plugged into, is actually grounded. Failure to do so will severely compromise the performance, reliability and safety of use of the Dreadnaught D.
Ventilation is an important issue when placing the Dreadnaught D in a system. Make certain that the Dreadnaught D is placed in a well-ventilated area or rack unit.
Please take note that some powerline conditioners defeat the AC power ground on their outlets. If the intention is to plug the Dreadnaught D into a line conditioner, check with your dealer to make certain that the particular conditioner that is intended for use DOES NOT DEFEAT THE AC GROUND on its AC outlets. Only the highest powered line conditioners should be considered for use with the Dreadnaught D. Otherwise, the amplifier’s power output may be compromised.
DO NOT remove any cover panels from the Dreadnaught D, as there are no user serviceable components inside. Refer servicing and updating to qualified service personnel only.
Endcaps on all unused RCA inputs will improve the sound quality and may reduce the susceptibility to RF induced anomalies.
It is imperative that the Dreadnaught D be operated in a well ventilated environment and the immediate external temperature be maintained as specified in Appendix B of this manual. External cooling fans may be required in some cases. Do not stack any equipment directly above or below the Dreadnaught D, to protect it from overheating, as well as the continued functionality of any equipment near and around it.
FEATURES:
- All assembled circuit boards are given a thorough visual inspection and are then tested in a benchreference Dreadnaught D.
- The tested, assembled circuit boards are then installed in a new Dreadnaught D and the whole unit is tested for every function and parameter.
- The unit is put on a burn-in torture rack to test for any possible component failures.
- It is then tested on an audio analyzer for all pertinent parameters.
- The unit has all remaining chassis components installed and then undergoes a complete visual inspection, which assures that all Dreadnaught D’s meet visual specifications.
- The Dreadnaught D then undergoes a critical listening and functional test.
- Burn-In Time - While the Dreadnaught D amplifier will sound wonderful without any burn-in time, users may experience small sonic improvements during the first week or so of operation
SPECIFICATIONS:
Power Output
Mono or Stereo Module
These Ratings not tested under the FTC Standard
8 ohms: 225W RMS per channel with less than 0.05% THD from 20 Hz to 20 kHz:
4 ohms: 375W RMS per channel with less than 0.05% THD from 20 Hz to 20 kHz.
2 ohms: 500W RMS per channel with less than 0.05% THD from 20 Hz to 20 kHz.
Mono Bridged Module
These Ratings not tested under the FTC Standard
8 ohms: 500W RMS per channel with less than 0.05% THD from 20 Hz to 20 kHz
4 ohms: 800W RMS per channel with less than 0.05% THD from 20 Hz to 20 kHz.
Frequency Response (±5dB)
0Hz to 20 kHz
Damping Factor
Greater than 6000 at 100 Hz; Greater than 2000 at any frequency up to and including 20 kHz.
Signal to Noise Ratio
120dB referenced to rated output (A-Weighted)
Crosstalk
-85 dB
Analog Audio Inputs
1 Single-ended (RCA) per channel on each module.
1 Balanced (XLR) per channel on each module.
Input Impedance
47 kOhms. Single-Ended or Balanced, each phase.
Input sensitivity
Mono or Stereo module:
Single-ended) 1.825V RMS input for 225W into 8 ohms.
Balanced) 1.825V RMS input for 225W into 8 ohms.
Mono Bridged module
Single-ended or Balanced) 1.825V RMS input for 500W into 8 ohms
Gain
(Single-Ended or Balanced) 27.8dB.
Polarity
(Single-ended) Non-Inverting.
(Balanced) Pin-2 = Positive, Pin-3 = Negative for Non-Inverting Output.
Analog Audio Outputs
One balanced output with 5-way binding posts per channel.
Modes/Processes
Standby: Amplifier is ready to be turned on via front panel switch or remote trigger.
Overcurrent, D.C., and/or thermal protection: Amplifier will cycle.
Catastrophic D.C. or output stage failure: Amplifier will shut down.
Miscellaneous
Dimensions
(W x H x D) 17 5/8 inches x 7 15/16 inches x 19 3/4 inches; 448 mm x 202mm x 502 mm
Weight
(fully loaded) 98.5 lbs; 44.8 kG
Maximum Operating Temperature
Internal: 176° F (80° C)
Room: 122° F (50° C)
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