SOUND IMPRESS HY122-4CH Quad Amplifier User Manual
- June 1, 2024
- SOUND IMPRESS
Table of Contents
SOUND IMPRESS HY122-4CH Quad Amplifier
Product Information
Specifications
- Model: HY122-4CH Quad
- Channels: 4
- Power Output: 125 Wrms per channel at 4 ohms
- Signal-to-Noise Ratio (SNR): 118 dB
- Total Harmonic Distortion: 0.0015%
- Impedance Support: From 2 ohms
- Power Supply: Switched-mode power supply (SMPS)
- Main Voltage Compatibility: 110-230 VAC
Product Usage Instructions
Introduction
The HY122-4CH Quad amplifier from SoundImpress is designed for high-end audio
applications, providing exceptional sound quality and performance. Follow the
instructions below to ensure optimal usage of the amplifier.
Installation and Setup
- Ensure the amplifier is placed on a stable surface with proper ventilation as per safety instructions.
- Connect the input sources to the amplifier using high-quality cables for optimal sound reproduction.
- Connect the output terminals to the speakers ensuring correct polarity.
Powering On and Adjustments
- Plug the amplifier into a suitable power outlet compatible with the voltage requirements.
- Turn on the amplifier using the power switch and adjust the volume to a low level initially.
- Gradually increase the volume to your desired listening level while monitoring for any distortion or clipping.
Maintenance and Cleaning
To ensure longevity and performance, periodically clean the amplifier using a
damp cloth. Avoid using liquid or aerosol cleaners that may damage the unit.
FAQ
Q: What is the maximum power output of the HY122-4CH Quad amplifier?
A: The amplifier can deliver up to 125 Wrms per channel at 4 ohms.
Q: Can I connect speakers with an impedance lower than 4 ohms to this amplifier?
A: The amplifier is designed to support impedance from as low as 2 ohms, ensuring compatibility with a wide range of speakers.
Q: How should I clean the amplifier?
A: Unplug the amplifier before cleaning and use a damp cloth. Avoid using liquid or aerosol cleaners.
SoundImpress HY122-4CH Quad
125WPC | Ncore® | Powered by Hypex
This SoundImpress amplifier is a self-contained high-end class-D four-channel amplifier intended for a wide range of audio applications, ranging from public address systems to ultrahigh-fidelity replay systems for studio and home use. The SoundImpress brand stands for outstanding quality, timeless designs, and Dutch craftsmanship. This amplifier is built to last as it is extensively tested and manually assembled to ensure every last detail is checked.
- Ncore® technology
- Impressive performance despite the load
- High-quality aluminum chassis
- Compact design
- Dimmable LED
- XLR input, binding posts output
- Assembled by hand in the Netherlands
- 5-year Warranty
INTRODUCTION
SoundImpress HY122-4CH
SoundImpress HY122 Quad Amplifier 125WPC | Ncore® | Powered by Hypex
The HY122-4CH is a compact, high-performance, four-channel, and no-nonsense
class-D power amplifier. It incorporates the proven and renowned 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 high-frequencies. 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 NC122MP 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 and wiring from Mogami and Belden. It can operate from both 110 and 230 VAC mains voltage due to its universal mains input compatibility featuring an automatic input voltage doubler.
Small and powerful
This amplifier can deliver all its power from as low as 2 ohms 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. This results in performances such as the max
output power of 125 Wrms at 4 ohms per channel, a Signal-to-Noise Ratio (SNR)
of 118 dB, and an 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 the 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 five years after the original date of
purchase against defects due to faulty workmanship 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 SoundImports 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 SoundImports 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, or 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 the
SoundImports 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
- Channel output (+)
- Channel output (-)
- Balanced input
- On/off switch
- Power input ‘
- Fuse tray “
- Attention: Risk of electric shock.
- The fuse is supplied as standard. When replacing it, only use the original value.
- Front panel with engraved logo
- Dimmable LED indicator
- Bottom view
- Switch for LED indicator ‘
- See the next page for an explanation of the LED switch.
- 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 HY122-4CH has four sets of speaker connections. Connect the speaker terminals marked “+” and “-” to the corresponding “+” and “-“ terminals of your designated speaker. Repeat the same for the other speaker terminals and corresponding speaker.
- This amplifier will work with both balanced and unbalanced inputs.
- For single-ended sources, you can use an 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 x150 watts at 8 ohms 180
watts at 2 ohms
---|---
Minimum load|
Signal-to-noise ratio (SNR)| 131 dB
Distortion| 0.00017 % THD+N at 20-20,000 Hz, 4 ohms, 100 watts
Efficiency| > 94%
Frequency response| 0 – 60,000 Hz
Input impedance| 4.4k ohms (14 dB) / 10.2k ohms (27 dB)
Circuit Topology| Eigentakt
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)| 260 x 78 x 325 mm
Case material| Aluminum
Do you wish to read this manual in a different language? Or prefer a digital version? Scan the QR code!
Sound Imports
- Peizerweg 97A 9727AJ Groningen Nederland
- Tel: +3185-0711860
- E-mail: [email protected].
- Btw-nummer: NL861325254B01
- KvK-nummer: 78268753