SOUNDIMPORTS HY252-2CH Stereo Amplifier User Manual
- June 9, 2024
- SOUNDIMPORTS
Table of Contents
SOUNDIMPORTS HY252-2CH Stereo Amplifier User Manual
Introduction
SoundImpress HY252 Stereo Amplifier 250WPC | Ncore® | Powered by Hypex
The HY252-2CH is a compact, high performance, two channel and no-nonsense class-D power amplifier. It incorporates the proven and renown Hypex Ncore® technology for nothing less than impressive performance!
The performance stands out with authoritative and tightly controlled low registers, high dynamics and crystal clear mid- and highfrequencies. The super-low noise level generates a completely black background to reveal the tiniest of details in every recording.
All SoundImpress amplifiers are hand assembled in the Netherlands. The custom milled aluminum enclosure houses the Hypex NC252MP amplifier module, the best thermal material for audio devices. The in- and output connections are provided through high-quality binding posts from CMC and XLR-chassis from Neutrik andwiring from Mogami and Belden. It can operate from both 110 and 230 VAC mains voltage due to it’s universal mains input compatibility featuring an automatic input voltage doubler.
Small and powerfull
This amplifier can deliver all its power from as low as 2 ohm impedance
combined with low idle loss, very low distortion and noise levels. Chief
distinguishing features are flat frequency response irrespective of load
impedance, nearly frequency independent distortion behaviour and very low
radiated and conducted EMI. Tthis results in performances such as the max
output power of 250 Wrms at 4 ohm per channel, a Signal-to-Noise Ratio (SNR)
of 121 dB and astonishing distorting level of 0.0015%.
An amplifier is only as good as the power supply it contains. In this SoundImpress amplifier, the power supply and amplifier are located on one board. The switched-mode power supply (SMPS) providing the power for the amplifier is a compact, high power, highly efficient, regulated half bridge converter with synchronous rectification on the main output rails. These properties make this technology ideal for powering Class D audio amplifiers.
SAFETY INSTRUCTIONS
SAVE THESE SAFETY REQUIREMENTS FOR FUTURE REFERENCE. HEED ALL WARNINGS AND SAFETY REQUIREMENTS MARKED IN THIS MANUAL AND ON THE AMPLIFIER
- CLEANING – Unplug this product from the electrical outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.
- VENTILATION – Slots and openings in the casing serve for ventilation and reliable operation of the product. They also protect the product from overheating. These openings must not be blocked or covered. These openings should never be blocked by placing the product on a bed, sofa mat or the like. Also, this product should not be placed in an enclosed space such as a bookcase or shelf unless proper ventilation is provided or the manufacturer’s instructions are carefully followed.
- POWER SOURCES – This product should be connected only to the power source indicated on the label. If you are not sure which power source is used in your home, contact the dealer or the local power company. The best way to disconnect the amplifier from power supply is to remove the power plug from the outlet. Unplug the power cord from the outlet if the unit will not be used for several months or longer.
- OVERLOADING – Ensure that outlets, extension cords, and built-in additional connections are not overloaded as this may result in fire or electric shock.
- OBJECTS AND LIQUIDS – Never push objects of any kind into this product as they may touch dangerous voltage points or short-circuit which may result in fire or electric shock. Never spill liquid on this product.
- WARNING: Do not expose this amplifier to water, spills or splashes and do not place objects filled with liquids, such as vases, on the device. As with all electronic products, take care not to spill liquids into any part of the system. Liquids can cause malfunction and/or cause a fire.
WARRANTY TERMS
LIMITED WARRANTY – Sound Imports warrants this device for a period of five years after the original date of purchase against defects due to faulty work manship or materials arising from Normal Use of the device. The warranty covers working parts that affect the function of the device. It does NOT cover cosmetic deterioration caused by fair wear and tear, or damage caused by accident, misuse or neglect. Any attempt to modify or take apart the device (or its accessories) will void the warranty.
If you discover a defect, notify Sound Imports during the warranty period. Claims under warranty must be supported by reasonable evidence that the date of the claim is within the warranty period. To validate your warranty, please keep your original purchase receipt together with these warranty conditions for the duration of the warranty period. Replacement products claimed under warranty are not entitled to renewed 5-year warranty coverage. If you discover a defect, notify Sound Imports during the warranty period. Claims under warranty must be supported by reasonable evidence that the date of the claim is within the warranty period. To validate your warranty, please keep your original purchase receipt together with these warranty conditions for the duration of the warranty period. Replacement products claimed under warranty are not entitled to renewed 5-year warranty coverage.
SUPPORT – We are continuously working to enhance your experience with our products. If you have any comments, remarks or have found a defect, please contact us. If you have any problems with your amplifier please check this user manual. If this manual is not sufficient to troubleshoot your problem contact Sound Imports support department. The latest datasheets and manuals can be found on our website. If you can’t find the answer there, you can also contact us and we will be happy to help!
DISPLAY OF CONTROL FUNCTIONS
- On / off switch
- Power input ‘
- Fuse tray “
- Right channel output (+)
- Right channel output (-)
- Right balanced input
- Left balanced input
- Left channel output (+)
- Left channel output (-)
- Front panel with engraved logo
- Dimmable LED indicator
- Bottom view
- Switch for LED indicator ‘
- 0 — LED OFF
- 1 – — Normal brightness
- 2 — Max brightness
GET STARTED
START – Before turning on your new amplifier, first make all connections. Ensure that the volume on your pre-amplifier or playback device is set to a minimum.
CONNECTION – The HY252-2CH has two sets of speaker connections which are identical in function (parallel connection). Connect the Right speaker terminals marked “R +” and “R-” to the corresponding “+” and “-“ terminals of your designated right speaker. Repeat the same for Left speaker terminals and corresponding left speaker.
This amplifier will work with both balanced and unbalanced inputs. For single- ended sources you can use a RCA to XLR cable or converter plug. The cable or converter should short signal ground (XLR pin 1) with negative signal input (XLR pin 3).
PLAY – Turn on the amplifier. Slowly increase the volume while playing
some music.
ENJOY!
SPECIFICATIONS
Rated power output (RMS)| 2 x 250 watts at 4 ohms
2 x 150 watts at 8 ohms
---|---
Minimum load| 4 ohm
Signal-to-noise ratio (SNR)| 121 dB
Distortion| 0.0015 % THD+N (20-20,000 Hz at 0.5 x rated power output)
Efficiency| 92%
Frequency response| 10 – 48,000 Hz
Circuit Topology| Ncore®
Amplifier classification| Class D
Speaker output channels| 2
Input connection type| XLR
Speaker output connection type| Banana
Power requirements| 110 / 230 VAC (symmetric supply +/-)
Power inlet connector| IEC C14
Dimensions (D x W x H)| 191mm x 200mm x 78mm (size incl feet, excl
connectors)
Case material| Aluminum
Customer Support Center
SoundImports
Peizerweg 97A
9727AJ Groningen
Nederland
Tel: +3185-0711860
E-mail: info@soundimports.nl
Btw-nummer: NL861325254B01
KvK-nummer: 78268753
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