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PURIFI EVAL1 Amplifier Stereo set
The EVAL1 stereo evaluation kit creates effortless signal and power supply connections for a stereo 1ET400A setup. The kit is developed for evaluation purposes, but is perfect suitably for DIY applications. HighlightsConvenient 2-channel evaluation platform for 1ET400ABalanced analog inputs (XLR) and banana-plug speaker connectorsOn-board voltage regulatorsSuitable for DIY projectsTwo gain options Product details PURIFI EVAL1 | Eigentakt | Stereo Amplifier Kit  The 1ET400A amplifier module yields an audio quality level that sets the standard for power amplifiers of any operating class. The power supply and signal connections, available at the pin header on the1ET400A module, require special attention. This EVAL1 kit provides a buffered input signal and handles the power supply connections for a 1ET400A module in an easy manner. The kit is supplied with two 1ET400A amplifier modules, one FE02 stereo front-end module and a power supply cable set. The FE02 front-end module allows you to easily connect a compatible power supply with the supplied cable set. The signal input is connected through XLR. Two pairs of banana-plug speaker connectors allow for easy speaker connections. The FE02 front-end module uses dual OPA1612 opamps as pre-gain stage and buffer. The total gain for the EVAL1 (FE02 and 1ET400A) is 27 dB, but can set for a total gain of 14 dB. The opamps receive their supply voltage through a pair of onboard low noise discrete voltage regulators. The EVAL1 is compatible with the Hypex SMPS1200A400 configured with unregulated Vaux rails. The supplied cable set has pre-attached connector housings for the FE02 on one end. The other end has pre-crimped terminals with separate connector housings. This allows you to connect the EVAL1 with any compatible power supply. The pre-crimped terminals and supplied JST housings are compatible with the SMPS1200A400. Looking for a Eigentakt stereo kit? Checkout this PURIFI EVAL2 Mono Amplifier Kit. What's In The Box?2x 1ET400A amplifier module 1x FE02 stereo front-end module1x Power supply cable setShow more Show less Frequently bought togetherPower Supply Bundle (Hypex SMPS1200) EVAL1 Amplifier Stereo set + SMPS1200A400 power supply Normally:€ 1.039,90You save: € 12,-Combideal:€ 1.027,90 Add to cartPURIFI EVAL2 Eigentakt Mono Amplifier Kit
The EVAL2 mono evaluation kit creates convenient signal and power supply connections for a mono 1ET400A setup. The kit is developed for evaluation purposes, but is perfect suitably for DIY applications. HighlightsConvenient 1-channel evaluation platform for 1ET400ABalanced analog input (XLR) and banana-plug speaker connectorsOn-board voltage regulatorsSuitable for DIY projectsTwo jumper selectable gain options Product details PURIFI EVAL2 | Eigentakt | Mono Amplifier Kit  The 1ET400A amplifier module yields an audio quality level that sets the standard for power amplifiers of any operating class. The power supply and signal connections, available at the pin header on the1ET400A module, require special attention. This EVAL2 provides a buffered input signal and handles the power supply connections for a 1ET400A module in a convenient way. The kit is supplied with a 1ET400A amplifier module, one FE01 stereo front-end module and a power supply cable set. The FE01 front-end module allows you to easily connect a compatible power supply with the supplied cable set. The signal input is connected through XLR. A set of banana speaker connectors make connecting a speaker easy. The FE01 front-end module uses the OPA1612 opamp as pre-gain stage and buffer. The total gain for the EVAL2 (FE01 and 1ET400A) is 27 dB, but can set for a total gain of 14 dB. The opamp receive their supply voltage through a pair of onboard low noise discrete voltage regulators. The EVAL2 is compatible with the Hypex SMPS1200A400 configured with unregulated Vaux rails. The supplied cable set has pre-attached connector housings for the FE01 on one end. The other end has pre-crimped terminals with separate connector housings. This allows you to connect the EVAL1 with any compatible power supply. The pre-crimped terminals and supplied JST housings are compatible with the SMPS1200A400. Looking for an Eigentakt stereo kit? Check out this PURIFI EVAL1 Stereo Amplifier Kit. What's In The Box?1x 1ET400A amplifier module 1x FE01 stereo front-end module1x Power supply cable setShow more Show less Frequently bought togetherPower Supply Bundle (Hypex SMPS1200) EVAL2 Eigentakt Mono Amplifier Kit + SMPS1200A400 power supply Normally:€ 739,90You save: € 12,-Combideal:€ 727,90 Add to cartPURIFI EVAL3 | Eigentakt | 1ET7040SA | Mono Amplifier Kit
The EVAL3 mono evaluation kit creates easy signal and power supply connections for a mono 1ET7040SA setup. The kit is developed for evaluation purposes, but is perfect suitably for DIY applications. HighlightsSingle-channel, analog-input Class D amplifier moduleBalanced analog input (XLR) and banana-plug speaker connectorsExtended output power (1x950W @ 2 Ohm)Negligible THD and IMDExtraordinarily low noiseLoad-invariant responseExceptionally clean clippingLow losses & high efficiencyEasy to integrate Product details PURIFI EVAL3 | Eigentakt | 1ET7040SA | Mono Amplifier Kit The 1ET7040SA amplifier module yields an audio quality level that sets the standard for power amplifiers of any operating class. The power supply and signal connections, available at the pin header on the 1ET7040SA module, require special attention. This EVAL3 provides a buffered input signal and handles the power supply connections for a 1ET7040SA module in a convenient way. The kit is supplied with a 1ET7040SA amplifier module, one FE03 mono front-end module and a power supply cable set. The FE01 front-end module allows you to easily connect a compatible power supply with the supplied cable set. The signal input is connected through XLR. A set of banana speaker connectors make connecting a speaker easy. The FE03 front-end module uses the OPA1612 opamp as pre-gain stage and buffer. The total gain for the EVAL3 (FE03 and 1ET7040SA) is 27 dB, but can set for a total gain of 13 dB. The opamp receive their supply voltage through a pair of onboard low noise discrete voltage regulators. The EVAL3 is compatible with the Hypex SMPS1200A400 configured with unregulated Vaux rails. The supplied cable set has pre-attached connector housings for the FE03 on one end. The other end has pre-crimped terminals with separate connector housings. This allows you to connect the EVAL3 with any compatible power supply. The pre-crimped terminals and supplied JST housings are compatible with the SMPS1200A400. Looking for a Eigentakt stereo kit? Checkout this PURIFI EVAL1 Stereo Amplifier Kit. What's In The Box?1x 1ET7040SA amplifier module 1x FE03 mono front-end module1x Power supply cable setShow more Show lessPURIFI 1ET400A 1x425W Eigentakt Amplifier Module
The 1ET400A is a single-channel, ultra-high performance, analog-input Class D amplifier module capable of over 400W of power and provides an audio quality level that sets the standard for power amplifiers of any operating class. HighlightsSingle-channel, analog inputNegligible THD and IMDExtraordinary low noiseLoad-invariant responseExceptionally clean clippingLow losses & high efficiencySmall formfactor  Product details PURIFI 1ET400A | Eigentakt | Amplifier Module This high-performance amplifier module is based on the Eigentakt technology from PURIFI. The 1ET400A is one of the most high-end options from our amplifier module category. Eigentakt is the implementation of PURIFI's continuing research into nonlinear control theory that produced the first mathematically exact largesignal model of self-oscillating amplifier controllers. This breakthrough allows complete optimization of the feedback circuit and improves performance by at least an order of magnitude over existing implementations. The Eigentakt technology allows for extreme low THD at any frequency and power level. The negligible IMD (intermodulation distortion) creates a highly resolved and stable stereo image. Thanks to the very low output noise, this exceptional performance is preserved even at low listening levels. The 1ET400A also features a comprehensive protection system that makes it robust and easy to integrate.  FeaturesHigh loop gain (>75dB) in the entire audio bandNegligible Intermodulation Distortion (IMD)THD remains extremely low at any frequency and any power levelNegligible output noiseHigh power supply rejection ratio (PSRR)Controlled, second-order low-pass response What's In The Box?1ET400A amplifier module  The 1ET400A module requires attention on the power supply and signal input connections. We recommend to use a dedicated front-end module that provides a buffered input and handles the power supply connections. PURIFI developed the FE02 stereo front-end module for this purpose. This module enables an evaluation setup but is also suitable for DIY applications. The FE02 front-end module is supplied with the PURIFI EVAL1 kit available on this page.Show more Show lessPURIFI PTT4.0X04-NFC-01 4″ Ultra Low Distortion Long Stroke Driver
The PURIFI PTT4.0X04-NFC-01 is the smaller sibling of the PTT6.5W. Don't let the small size fool you! Thanks to state of the art technology this is probably the most potent and well performing 4†bass-midwoofer around. HighlightsCompact but no less impressivePURIFI 's Natural SurroundExtreme low distortion over full excursion range Engineered and manufactured in DenmarkExcellent midrange performanceHigh power handlingHigh linear excursion limit with constant force factor Product details PURIFI PTT4.0X04-NFC-01 bass-midwoofer  PURIFI is a fresh company that designs and manufactures extreme high performance transducers and amplifier modules. Don't let their freshness fool you; Their leadership team consists out of some well-respected audio technology pioneers. PURIFI developed a deep understanding of many performance degrading aspects for both amplifiers and transducers. Thanks to this understanding the PTT4.0X04-NFC-01 is the most potent 4†bass-mid woofer from our woofer category. The challenge Loudspeaker drivers are known to add a large, if not the largest, amount of distortion in an audio signal chain. Reducing this distortion is a challenge with the complication of fine-tuning to improve one part (e.g. harmonic distortion) often results in a degradation of  another part (e.g. intermodulation distortion). These distortions consist out of several separate distortion mechanisms. By carefully mapping and completely understanding these mechanisms, PURIFI succeeded in improving the overall performance by a large degree. A whole new take on driver designPURIFI developed mathematical models for the motor system, suspension, dome and surround. These models allowed for optimization of each distortion mechanism separately. This systematic approach reduced all distortions mechanisms and keeps intermodulation distortion low. The result makes that the PTT4.0X04-NFC-01 is a compact 4†driver with unparalleled performance. This small driver is really up to big sound. The mechanismImprovementLow force factor modulationCurrent through the voice coil is not distorted by cone movement. Gives undistorted midrange regardless of excursionConstant force factor over excursion - Bl(x)Prevents amplitude devotions of midrange output during large excursion (sometimes called ‘burbling')Low surround radiation distortionReduces harmonic and intermodulation distortion caused by surroundLow magnetic hysteria distortionReduces harmonic and intermodulation distortion caused by magnetic traces left by previous cycle FAQ Q: Why is this surround odd shaped?A: This is the PURIFI Natural Surround. Conventional surrounds create distortion as they deform. The shape of the Natural Surround reduces cone edge resonances and distortion. It might be odd looking, but form follows function here. A more detailed look shows that the surround actually represents complex sound wave. We have been told that the Natural Surround is called ‘wormy' by insiders. Show more Show lessPURIFI PTT4.0X08-NFC-01 4″ Ultra Low Distortion Long Stroke Driver
The PURIFI PTT4.0X08-NFC-01 is the 8 ohm version of PTT4.0X and one of the smaller siblings of the PTT6.5. Don't let the small size fool you! Thanks to state of the art technology this is a very potent and well performing 4†bass-midwoofer around. HighlightsCompact but no less impressivePURIFI 's Natural SurroundExtreme low distortion over full excursion range Engineered and manufactured in DenmarkExcellent midrange performanceHigh power handlingHigh linear excursion limit with constant force factor Product details PURIFI PTT4.0X08-NFC-01 bass-midwoofer  PURIFI is a fresh company that designs and manufactures extreme high performance transducers and amplifier modules. Don't let their freshness fool you; Their leadership team consists out of some well-respected audio technology pioneers. PURIFI developed a deep understanding of many performance degrading aspects for both amplifiers and transducers. Thanks to this understanding the PTT4.0X08-NFC-01 is on of the most potent 4†bass-mid woofers from our woofer category. Besides this 8 ohm version, there is also a 4-ohm version and a 4" passive radiator available. The challenge Loudspeaker drivers are known to add a large, if not the largest, amount of distortion in an audio signal chain. Reducing this distortion is a challenge with the complication of fine-tuning to improve one part (e.g. harmonic distortion) often results in a degradation of another part (e.g. intermodulation distortion). These distortions consist out of several separate distortion mechanisms. By carefully mapping and completely understanding these mechanisms, PURIFI succeeded in improving the overall performance by a large degree. A whole new take on driver designPURIFI developed mathematical models for the motor system, suspension, dome and surround. These models allowed for optimization of each distortion mechanism separately. This systematic approach reduced all distortions mechanisms and keeps intermodulation distortion low. The result makes that the PTT4.0X08-NFC-01 is a compact 4†driver with unparalleled performance. This small driver is really up to big sound. The mechanismImprovementLow force factor modulationCurrent through the voice coil is not distorted by cone movement. Gives undistorted midrange regardless of excursionConstant force factor over excursion - Bl(x)Prevents amplitude devotions of midrange output during large excursion (sometimes called ‘burbling')Low surround radiation distortionReduces harmonic and intermodulation distortion caused by surroundLow magnetic hysteria distortionReduces harmonic and intermodulation distortion caused by magnetic traces left by previous cycle FAQ Q: Why is this surround odd shaped?A: This is the PURIFI Natural Surround. Conventional surrounds create distortion as they deform. The shape of the Natural Surround reduces cone edge resonances and distortion. It might be odd looking, but form follows function here. A more detailed look shows that the surround actually represents complex sound wave. We have been told that the Natural Surround is called ‘wormy' by insiders.  Q: Should I go with this 4 ohm or with the 8-ohm version?A: Both woofers have similar distortion performance and the T/S parameters are alike. The 4-ohm coils of the PTT4.0X04-NFC-01 allow more current to flow on a similar drive voltage. This gives higher sensitivity and is preferred in most applications. If you have an amplifier that is not comfortable with low impedance loads or has specific requirements, such as parallel woofers, this PTT4.0X08-NFC-01 might be more favorable.Show more Show lessPURIFI PTT6.5X08-NFA-01 6.5″ Ultra Low Distortion Long Stroke Driver 8 Ohm
The PURIFI PTT6.5X08-NFA-01 a is a refined bass-mid-woofer, incorporating state of the art technology that is based on extended research. The result is a long-stroke woofer with unparalleled performance. HighlightsA whole new take on driver designPURIFI's Natural SurroundExtreme low distortion over full excursion range Engineered and manufactured in DenmarkExcellent midrange performanceHigh power handlingHigh linear excursion limit with constant force factor Product details PURIFI PTT6.5X08-NFA-01 bass-mid-woofer  PURIFI is a fresh company that designs and manufactures extremely high-performance woofers and amplifier modules. Don't let the freshness fool you; Their leadership team consists out of some well-respected audio technology pioneers. PURIFI developed a deep understanding of many performances degrading aspects for both amplifiers and transducers. Thanks to this understanding the PTT6.5X08-NFA-01 is the most refined bass-mid woofer from our woofer category. Besides this 8 ohm version, there is also a 4-ohm version and a 6,5" passive radiator available. Looking for similar performance, but something smaller? Take a look at the 4" PTT4.0W04. The challenge Loudspeaker drivers are known to add a large, if not the largest, amount of distortion to an audio signal chain. Reducing this distortion is a challenge with the complication of fine-tuning to improve one part (e.g. harmonic distortion) often results in a degradation of another part (e.g. intermodulation distortion). These distortions consist out of several separate distortion mechanisms. By carefully mapping and completely understanding these mechanisms, PURIFI succeeded in improving the overall performance by a large degree. A whole new take on driver designPURIFI developed mathematical models for the motor system, suspension, cone, and surround. These models allowed for the optimization of each distortion mechanism separately. This systematic approach reduced all distortions mechanisms and keeps intermodulation distortion low. The result makes that the PTT6.5X08-NFA-01 is a compact 6.5†driver that parallels or even surpasses the bass performance of a low excursion, a large surface driver, while it also excels in midrange performance. The mechanism ImprovementLow force factor modulationCurrent through the voice coil is not distorted by cone movement. Gives undistorted midrange regardless of the excursionConstant force factor over excursion - Bl(x)Prevents amplitude devotions of midrange output during the large excursion (sometimes called ‘burbling')Low surround radiation distortionReduces harmonic and intermodulation distortion caused by surroundLow magnetic hysteria distortionReduces harmonic and intermodulation distortion caused by magnetic traces left by the previous cycle FAQQ: Should I go with this 4 ohm or with the 8-ohm version?A: Both woofers have similar distortion performance and the T/S parameters are alike. The 4-ohm coils of the PTT6.5W04 allow more current to flow on a similar drive voltage. This gives higher sensitivity and is preferred in most applications. If you have an amplifier that is not comfortable with low impedance loads or has specific requirements, such as parallel woofers, this PTT6.5W08 might be more favorable. Q: Why is this surround odd shaped?A: This is the PURIFI Natural Surround. Conventional surrounds create distortion as they deform. The shape of the Natural Surround reduces cone edge resonances and distortion. It might be odd-looking, but form follows function here. A more detailed look shows that the surround actually represents a complex sound wave. We are told that the Natural Surround is also called ‘wormy' by insiders.Show more Show less
