The Vision SP-1700 is a pair of passive loudspeakers designed for installation in various environments, offering a blend of performance and practical features. These speakers are part of Vision's "installation:innovation" product line, emphasizing their suitability for fixed audio setups.
Function Description:
The SP-1700 loudspeakers are designed to reproduce audio signals from an amplifier, delivering sound for a variety of applications such as background music, presentations, or general audio reinforcement. As passive speakers, they require an external amplifier to operate. They are intended for wall mounting, providing a discreet and space-saving audio solution.
Important Technical Specifications:
- Product Dimensions: Each speaker measures 150 mm (length) x 148 mm (width) x 250 mm (height).
- Product Weight: The pair weighs 3.8 kg, indicating a relatively lightweight design for easy handling and installation.
- Construction Material: The enclosures are constructed from 9mm MDF (Medium-Density Fibreboard), a common material in speaker design known for its acoustic properties and rigidity.
- Colour: The speakers are finished in white, allowing them to blend seamlessly into many interior designs.
- Power Handling: They are rated for 50 watts RMS (Root Mean Square), with a maximum power handling capability of up to 60 watts RMS. This specification refers to the average sustained power the loudspeaker can handle without distortion.
- Woofer: Each speaker features a 4-inch woofer, responsible for reproducing lower and mid-range frequencies.
- Tweeter: A 1-inch silk dome tweeter is included for clear and detailed high-frequency reproduction.
- Input / Output Terminals: The speakers utilize spring connectors for easy and secure attachment of speaker cables.
- Output Impedance: The nominal impedance is 8 ohms. This is an important factor when matching the speakers with an amplifier, as the amplifier's output power can vary depending on the connected impedance. The manual notes that 8 ohms typically denotes two loudspeakers attached to an amplifier, while 4 ohms typically denotes four loudspeakers attached.
- Sensitivity: With a sensitivity of 85dB (1w/1m), the speakers produce 85 decibels of sound pressure level at a distance of 1 meter with 1 watt of input power. This indicates their efficiency in converting amplifier power into sound.
- Frequency Response: The speakers have a frequency response range of 75Hz to 20kHz. This range covers most audible frequencies, providing full-range sound reproduction suitable for music and speech.
- Compliance: The SP-1700 complies with RoHS (EU directive 2002/95/EC) and WEEE (EU directive 2002/96/EC) standards, indicating their adherence to environmental regulations regarding hazardous substances and waste electrical and electronic equipment.
Usage Features:
- Amplifier Compatibility: The speakers are suitable for use with any low impedance amplifiers with an output of 2 x 10w - 2 x 70w (@ 8 ohms). This broad compatibility makes them versatile for various audio setups.
- Wall Mounting: The primary usage feature is their wall-mount capability. The installation process involves:
- Fitting Brackets to Wall: Position the included brackets over load-bearing studs and secure them with appropriate screws, ensuring they are level. A crucial note is to maintain a minimum distance of 140mm between the top of the bracket and the ceiling.
- Fitting Loudspeakers to Mounts: The loudspeakers are designed to be lowered onto the brackets, providing a secure attachment.
- Cable Termination: Speaker cables from the amplifier are connected to the spring terminals on the rear of the loudspeakers. The manual specifies using unshielded speaker cable with a gauge of 0.75mm or higher for optimal performance.
- Tightening Bracket Screws: Once mounted, the desired angle of the speakers can be set, and side screws are tightened to lock them in place. This allows for aiming the sound towards the listening area.
- Accessories: The product includes 2 x Wall brackets, providing all necessary hardware for installation.
Maintenance Features:
- Troubleshooting Guide: The manual includes a basic troubleshooting section to address common issues:
- Sound only coming out one side: This suggests checking amplifier output connections (switching them to see if the fault moves, indicating a speaker issue) and input connections/cabling.
- Sound very quiet: This points to checking if unshielded speaker cables of the correct gauge (0.75mm or higher) are used, explicitly stating that phono or minijack cables (which are shielded) are not appropriate for this application.
- Packaging Preservation: Users are advised to save all packing material, as it is essential for shipping the unit for repair in the event it needs servicing. Damage during transit will not be covered by warranty if the original packaging is not used.
- Environmental Compliance: The WEEE compliance means the product should be returned to the place of purchase at the end of its useful life for recycling, promoting responsible disposal.
- Warranty: The SP-1700 comes with a 2-year return-to-base warranty from the date of purchase, covering component failures and damage reported within 24 hours of purchase. The warranty is non-transferable and requires the original purchaser to contact their AV reseller for support. The manufacturer aims to repair units within 5 working days but may take longer. The warranty does not cover faults caused by abuse, misuse, incorrect installation, unstable or faulty power input, or ignoring manual guidelines.
General Considerations:
- Installation Environment: The manual provides clear guidelines for the installation environment, advising against moist/humid places, direct sunlight/heating equipment, extremely cold locations, excessive vibration/dust, and poorly ventilated areas. It also warns against exposing the product to dripping or splashing liquids and placing liquid-filled objects on or near it.
- Declaration of Conformity: Vision products, including the SP-1700, are certified and comply with local regulations to a 'CB Certification' standard, ensuring they meet applicable certification standards for sale in the EU and other participating countries.
- Declaration of Origin: All Vision products, including the SP-1700, are manufactured in the People's Republic of China (PRC).
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