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CLASS D PURIFI AMPLIFIERS
Negotiable
ALL INQUIRIES ONLY CALL
NOW we build amplifiers with PURIFI CLASS D MODULES
1ET400A – Data Sheet
read more
Document includes the full specifications for 1ET400A
Click to download
Single-channel, analog-input
Class D amplifier module
Negligible THD and IMD
Extraordinary low noise
Load-invariant response
Exceptionally clean clipping
Low losses & high efficiency
Easy to integrate
Designed in Denmark
KEY SPECIFICATIONS
1ET400A
Output Power 425W @ 1% THD, 4Ω
Output Current ~25A
THD N <0.00017% (~116dB) @ 100W, 4Ω, 20-20kHz
Dynamic Range ~131dB(A)
Output Noise 11.5μV(A)
Gain 12.8dB
Output Impedance 94%
Idle losses ~1.7W (output stage)
Supply ±25V to ±65V DC
Size 82x63x35mm
High loop gain (>75dB) in the entire audio band
This figure corresponds to an unprecedented 110MHz Gain-Bandwidth Product and produces consistent ultra-high performance across the audio spectrum unmatched by audio amplifiers of any technology or operating class.
Negligible Intermodulation Distortion (IMD)
A very good measure for how well an amplifier handles complex signals. Sonically low IMD means a highly resolved and stable stereo image across the whole spectrum, even during very complex and busy passages.
THD remains extremely low at any frequency and any power level right until clipping
Translates into a total lack of sonic signature, and an ability to reproduce any type of music without preference for genres or production style.
Negligible output noise
No audible noise. Deep black silences and a generous and detailed sound even at very low playback volumes.
High power supply rejection ratio (PSRR)
The module places no particular demands on the power supply quality. A simple off-the-shelf unregulated SMPS will not degrade audio performance.
Load-invariant frequency response and negligible output impedance
The amplifier handles difficult loudspeakers with ease, including those that challenge most other amplifiers.
Controlled, second-order low-pass response
Very flat audio-band response with a sensible, 60kHz bandwidth.
Reduced sensitivity to out-of-band noise from DACs, reducing the requirements on the DAC reconstruction filter. This leaves a shorter signal path between DAC and loudspeaker.
Problem-free operation with outboard DACs over which you may have no control.
Very low idle losses and reduced electromagnetic interference (EMI)
The enormous loop gain allows relaxed timing of the power MOSFETs without degrading audio performance.
Idle losses are minimized.
Very little to no effort needed to pass regulatory tests.
Exceptionally clean clipping and clipping-recovery in both voltage and current domains
Clips cleanly and recovers immediately without “overhang”. Current limiting is equally instantaneous and glitch free. This guarantees the smallest amount of audible artefacts when pushed into clipping or overload protection.
Overall implementation/integration ease saves save time and cost for the system integrator
Architecture completely eliminates heterodyning in multichannel applications.
NOW we build amplifiers with PURIFI CLASS D MODULES
1ET400A – Data Sheet
read more
Document includes the full specifications for 1ET400A
Click to download
Single-channel, analog-input
Class D amplifier module
Negligible THD and IMD
Extraordinary low noise
Load-invariant response
Exceptionally clean clipping
Low losses & high efficiency
Easy to integrate
Designed in Denmark
KEY SPECIFICATIONS
1ET400A
Output Power 425W @ 1% THD, 4Ω
Output Current ~25A
THD N <0.00017% (~116dB) @ 100W, 4Ω, 20-20kHz
Dynamic Range ~131dB(A)
Output Noise 11.5μV(A)
Gain 12.8dB
Output Impedance 94%
Idle losses ~1.7W (output stage)
Supply ±25V to ±65V DC
Size 82x63x35mm
High loop gain (>75dB) in the entire audio band
This figure corresponds to an unprecedented 110MHz Gain-Bandwidth Product and produces consistent ultra-high performance across the audio spectrum unmatched by audio amplifiers of any technology or operating class.
Negligible Intermodulation Distortion (IMD)
A very good measure for how well an amplifier handles complex signals. Sonically low IMD means a highly resolved and stable stereo image across the whole spectrum, even during very complex and busy passages.
THD remains extremely low at any frequency and any power level right until clipping
Translates into a total lack of sonic signature, and an ability to reproduce any type of music without preference for genres or production style.
Negligible output noise
No audible noise. Deep black silences and a generous and detailed sound even at very low playback volumes.
High power supply rejection ratio (PSRR)
The module places no particular demands on the power supply quality. A simple off-the-shelf unregulated SMPS will not degrade audio performance.
Load-invariant frequency response and negligible output impedance
The amplifier handles difficult loudspeakers with ease, including those that challenge most other amplifiers.
Controlled, second-order low-pass response
Very flat audio-band response with a sensible, 60kHz bandwidth.
Reduced sensitivity to out-of-band noise from DACs, reducing the requirements on the DAC reconstruction filter. This leaves a shorter signal path between DAC and loudspeaker.
Problem-free operation with outboard DACs over which you may have no control.
Very low idle losses and reduced electromagnetic interference (EMI)
The enormous loop gain allows relaxed timing of the power MOSFETs without degrading audio performance.
Idle losses are minimized.
Very little to no effort needed to pass regulatory tests.
Exceptionally clean clipping and clipping-recovery in both voltage and current domains
Clips cleanly and recovers immediately without “overhang”. Current limiting is equally instantaneous and glitch free. This guarantees the smallest amount of audible artefacts when pushed into clipping or overload protection.
Overall implementation/integration ease saves save time and cost for the system integrator
Architecture completely eliminates heterodyning in multichannel applications.
- Date Listed:04/07/2020
- Last Edited:04/07/2020
- Condition:New
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