Download full data sheet (164 kB) • Download manual (69 kB)

What do you look for in a power amplifier? Bet it's the sound. Hypex UcD™ amplifier modules are designed from the ground up for true fidelity. Available in 180W, 400W and 700W variants, they represent a new generation of switching power converters truly performing as amplifiers.

Features
• Flat, fully load-independent frequency response
• Low output impedance
• Very low, frequency-independent THD
• Very low noise
• Consistent top performer in listening trials including class A and SET amplifiers
• Runs on unregulated +/- rails
• Pop-free start and stop control
• Differential audio input
• Overcurrent and overvoltage Applications
• Monitor loudspeakers for recording and mastering studios
• Audiophile power amplifiers for professional and consumer use
• Public Address systems
• Home theatre systems
• Active loudspeakers

Technology
The UcD™ circuit is based on phase-shift controlled self-oscillation, with only a single voltage feedback control loop taking off at the loudspeaker terminals. The control function is constructed fully out of passive components, with only the comparator standing in for gain.

UcD400 ClassD mono amplifier 400W RMS
Download full datasheet (165 kB) • Download manual (75 kB)

What do you look for in a power amplifier? Bet it's the sound. Hypex UcD™ amplifier modules are designed from the ground up for true fidelity. Available in 180W, 400W and 700W variants, they represent a new generation of switching power converters truly performing as amplifiers.

Features
• Flat, fully load-independent frequency response
• Low output impedance
• Very low, frequency-independent THD
• Very low noise
• Consistent top performer in listening trials including class A and SET amplifiers
• Runs on unregulated +/- rails
• Pop-free start and stop control
• Differential audio input
• Overcurrent and overvoltage Applications
• Monitor loudspeakers for recording and mastering studios
• Audiophile power amplifiers for professional and consumer use
• Public Address systems
• Home theatre systems
• Active loudspeakers

Technology
The UcD™ circuit is based on phase-shift controlled self-oscillation, with only a single voltage feedback control loop taking off at the loudspeaker terminals. The control function is constructed fully out of passive components, with only the comparator standing in for gain.

Item	Symbol	Spec	Notes
Output Power	PR	400W	4Ω, THD=1%
Distortion	THD	<0.03% typ	Po< PR/2
		<0.005% typ	Po=1W
Noise	Un	30uV typ
Frequency Response		<10Hz-50kHz	+0,-3dB
Output Impedance	Zo	<20mΩ	f=1kHz
		<150mΩ	f=20kHz
Efficiency	η	>92%
Supply Ripple Rejection	PSRR	65dB	Both rails

 

Same as UcD400 but intended for audiophiles thanks to AD8620 input buffer.

FEATURES of AD8620 chip:
Low Noise 6 nV/Hz
Low Offset Voltage: 100 V Max
Low Input Bias Current 10 pA Max
Fast Settling: 600 ns to 0.01%
Low Distortion
Unity Gain Stable
No Phase Reversal
Dual-Supply Operation: 5 V to 13 V

Take a couple UcD400AD modules and UcD HG power supply and make your own powerfull audiophile stereo amplifier worth thousands of dollars.
Read more on AD8620 chip: http://www.hypex.nl/docs/AD8620.pdf

What do you look for in a power amplifier? Bet it's the sound. Hypex UcD™ amplifier modules are designed from the ground up for true fidelity. Available in 180W, 400W and 700W variants, they represent a new generation of switching power converters truly performing as amplifiers.

Features
• Flat, fully load-independent frequency response
• Low output impedance
• Very low, frequency-independent THD
• Very low noise
• Consistent top performer in listening trials including class A and SET amplifiers
• Runs on unregulated +/- rails
• Pop-free start and stop control
• Differential audio input
• Overcurrent, shortcurrent and overvoltage
• DC/AC-coupling selectable
• Fits in a 2HE case when mounted on its side
• 4-layer PCB design Applications
• Monitor loudspeakers for recording and mastering studios
• Audiophile power amplifiers for professional and consumer use
• Public Address systems
• Home theatre systems
• Active loudspeakers

Technology
The UcD™ circuit is based on phase-shift controlled self-oscillation, with only a single voltage feedback control loop taking off at the loudspeaker terminals. The control function is constructed fully out of passive components, with only the comparator standing in for gain.

The DS2.0 is the second in a new range of Class D amplifier modules. The state-of-the-art UcD design ensures a very low output impedance resulting in an even better control of your subwoofer.
The DS2.0 has stereo inputs (both high level and line level). The subwoofer crossover can be defeated in case this filtering is present in the pre-amp.

It is advisable to place the amplifier in an airtight compartment.
Measures: 190x220x60mm
Weight: 2.5kg.

Download manual (273 kB)

Features
• Audiophile 100V Slit-Foil capacitors
• DC-protection
• On-board fuses
• Dual high-speed rectifier bridges
• Fits in a 2HE case when mounted on its side.

Applications
• UcD700 mono or stereo applications
• Monitor loudspeakers for recording
and mastering studios
• Audiophile power amplifiers for
professional and consumer use
• Public Address systems
• Home theatre systems
• Active loudspeakers

Dimensions (l x w x h): 177mm x 79mm x 100mm

The UcD-supply HG converts the AC voltage into suitable DC-voltage for powering the UcD amplifiers.
The typical AC input voltage depends on the DC voltage requirements of the connected amplifier and must come from a double wound class-2 approved isolation transformer for safety reasons. This transformer must be primary fused. In case of high inrush current a current limiter PCB is recommended.
It could be used for powering two UcD180 or UcD400 modules depending on type of tramsformer conected to it. Ideal for UcD modules with AD8620 input buffer.
Measures: 145x75x57 mm.

UcD standard power supply
Download full datasheet (94 kB) • Download mechanical drawing (30 kB)

The UcD-supply ST converts the AC voltage into suitable DC-voltage for powering the UcD amplifiers.
A LED may be connected as POWER-ON indicator. The UcD-supply has two separate DC-protection devices thus allowing two amplifiers to be connected.
The amplifier can be controlled switched on/off by the UcD-supply; completely ‘popfree’. Two fuses are mounted to protect in case of over current in the main power circuit.

Download full datasheet (271 kB)

Inrush current is limited by means of a triac switching at AC mains zero crossing via heavy-duty resistors prior to relay switching. With an optional bicolour LED the status “On” or “Standby” can be displayed.
The main advantage is that the fuse rating can be greatly reduced to nominal current and does not necessarily need to be a ‘slow-blow' type.

Features
• Bi-colour LED display (not included)
• Zero crossing switching
• Operates at 230/115Vac (selectable)
• Can be controlled with either low voltage/current pushbutton or switch (not included) Applications
• Any audio application powered by big transformers