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Loudspeaker Unit
Loudspeaker Unit (Product Code: SLE/PHY/234) is a boxed 75 mm loudspeaker used to turn the output of a signal generator or amplifier into audible sound for school physics experiments on sound and waves. The 8 ohm, 5W speaker is mounted in an ABS plastic box of 150 x 98 x 60 mm, with two 4 mm sockets for connection and a boss for retort stand mounting. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Loudspeaker diameter | 75 mm |
| Resistance | 8 ohm |
| Nominal power | 5W |
| Housing | ABS plastic box |
| Box dimensions | 150 x 98 x 60 mm (depth 60 mm; described as about 150 x 100 x 60 mm) |
| Connections | Two 4 mm sockets |
| Mounting | Boss for retort stand mounting |
| Product code | SLE/PHY/234 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is the Loudspeaker Unit Used For?
Connected to a signal generator with 4 mm leads, the unit lets a class hear how changing frequency changes pitch and how changing amplitude changes loudness. Teachers use it to explore the range of human hearing, to show interference patterns by driving two speakers from one source, and to supply sound for resonance-tube and standing-wave experiments.
The boss means the speaker can be clamped to a retort stand at any height and pointed exactly where it is needed, for example into the mouth of a tube or towards a microphone. Start each experiment at low amplitude and keep the drive within the speaker's 5W nominal rating. It is a handy item of physics lab equipment in India for any department teaching sound waves.
What to Specify When Ordering
- The quantity: one unit per bench, or two where interference experiments are planned.
- The signal generator or amplifier you will use, so we can check it suits an 8 ohm, 5W load.
- Whether retort stands or 4 mm connecting leads should be quoted as well.
Supplier
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, based in Ambala, Haryana. We supply the Loudspeaker Unit to schools, colleges, teacher-training institutes and laboratory dealers in India and international markets, and can match it with a signal generator and stand so the set is ready for sound lessons. Company details are on the ScienceLab profile page.
Related Physics Lab Equipment
Items that work with the loudspeaker in sound experiments:
- Signal Generator & Amplifier — supplies sine, square and triangular signals to drive the speaker.
- Signal Generator and Amplifier — an alternative generator for frequency and pitch work.
- Retort Stand — for holding the unit by its boss at the right height.
- Resonance Apparatus with Brass Tube — for resonance experiments driven by a sound source.
- Tuning Fork on Resonance Box — a fixed-pitch source for comparing with the speaker.
More items are listed under Physics Lab Equipment.
Frequently Asked Questions
What are the specifications of the Loudspeaker Unit?
The Loudspeaker Unit has a 75 mm diameter speaker with 8 ohm resistance and 5W nominal power. It is mounted in an ABS plastic box measuring 150 x 98 x 60 mm, fitted with two 4 mm sockets and a boss for retort stand mounting.
How is the Loudspeaker Unit connected?
The Loudspeaker Unit connects through two 4 mm sockets on its ABS box, so standard 4 mm laboratory leads can link it to a signal generator or amplifier output. Check polarity is consistent when two units are used together.
Can the Loudspeaker Unit be mounted on a stand?
Yes, the Loudspeaker Unit comes with a boss for convenient retort stand mounting. Clamping it on a stand lets teachers set the height and direction of the speaker precisely, which is useful for resonance tubes and sound-measurement experiments.
What should drive the Loudspeaker Unit?
The Loudspeaker Unit should be driven by a signal generator or amplifier that suits an 8 ohm load, with the output kept within its 5W nominal power. Tell us your generator model via the contact page if you would like us to check the match.
Who supplies the Loudspeaker Unit?
Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, supplies the Loudspeaker Unit to schools, colleges and dealers in India and international markets, and can quote it together with signal generators, stands and leads.
How do I request a quotation for the Loudspeaker Unit?
To request a quotation for the Loudspeaker Unit, send the quantity, the generator you plan to use and your delivery location through the contact page or the enquiry cart. We will reply with price and availability for the unit and any matching items.
Request a Quote
Enquire about the Loudspeaker Unit (SLE/PHY/234) through the ScienceLab contact page, or add it to the enquiry cart with any generator or stand you need.
Last updated: 24 September 2026
