§1What this business is
Resistors, capacitors, diodes, transistors and other components are mounted on PCB cards; each card is tested for gain, distortion and frequency response. The cards, mains, driver and output transformers, switches, volume controls and connectors are fitted on a chassis with an anodised front panel, wired, and the whole amplifier is tested for output power, frequency response, impedance and noise before it goes into a cabinet. The profile's model gives 30/50 W into 4, 8 and 16 ohm speakers or 70/100 V lines and takes 4 microphone inputs, built to IS 10426:1983.
Capacity: 7,200 amplifiers a year (600 a month), worth ₹86.40 L at ₹1,200 each.
§2Is it right for you?
Who it is for
An electronics technician or sound-system dealer who knows what tent houses and DJs want.
Who it is not for
Someone without audio electronics skills or a sales network.
Advantages
- Steady demand from functions, religious places, schools and elections
- Components available in India (profile)
- Small fixed capital (₹1.74 L)
- Repair and upgrade work after sale
Drawbacks
- Many small makers and cheap imports compete
- Buyers now want Bluetooth, USB and digital amplifiers
- Components are most of the cost
- Large working capital compared with fixed capital
Skills you need
- Audio circuit assembly and soldering
- Testing with oscilloscope and audio test sets
- Transformer selection
- Selling to sound-system dealers and tent houses
Why difficulty 3/5: Electronics skill plus a crowded, fast-changing market.
§3Market
Who buys
- Tent houses and sound-system hire businesses
- Religious places
- Schools, colleges and auditoriums
- Hotels and political or public meetings
How it sells
- Electronics wholesalers
- Sound-system dealers
- Direct institutional orders
Good to know
- The profile says the item was then reserved for small-scale units; that reservation has since been withdrawn.
- The profile sees large export potential.
§4Raw material & machinery
| Item | Qty | Cost |
|---|---|---|
| Audio test system (distortion meter, signal generator, level meter, output power meter) | 2 sets | ₹30,000 |
| Oscilloscope, 20 MHz dual trace | 1 | ₹20,000 |
| DC regulated power supply, 30 V 2 A | 2 | ₹9,000 |
| Microphones and sound columns for testing | 2 each | ₹8,000 |
| Bench grinder | 1 | ₹7,000 |
| 3½-digit digital multimeter | 2 | ₹7,000 |
| Insulation tester | 1 | ₹6,000 |
| Drilling machine, ½" | 1 | ₹5,000 |
| Analog multimeter | 2 | ₹1,500 |
| Moulds, fixtures, tools and jigs | 1 lot | ₹15,000 |
From: DC-MSME project profile — Public Address Amplifiers (2003)
- Transformers (mains, driver, output — set of 3)₹400 per amplifier
- Chassis with plastic parts, hardware and anodised aluminium front plate₹130 per amplifier
- Transistors (set of 15)₹85 per amplifier
- Capacitors (25), PCBs (2), diodes (10), resistors (50)₹117 per amplifier
- Switches, connectors, terminal strips, volume controls, mains lead, packing₹169 per amplifier
- All components for 600 amplifiers a month₹901 a set = ₹5,40,600
From: DC-MSME project profile — Public Address Amplifiers (2003)
Suppliers in Building Business Bazaar
Automatic Electric Co. Ltd · Mumbai →Bharat Electronics Ltd · Bengaluru →Noble Electronics · Delhi →Applied Electronics Ltd · Delhi →Electronics Trade and Technology Development Corpn · Delhi →Hindustan Conductors Ltd · Delhi →Keltron · Delhi →Murugappa Electronics Ltd · Chennai →Orient Corporation · Mumbai →Pecco Electronics and Electricals Limited · Delhi →Philips India Ltd · Delhi →Precision Electronics Components Mfg. Co. · Hyderabad →
§5Licences & registration
- Udyam registration
- GST
- Trade licence from the local body
§6Schemes & subsidies
- PMEGPCentralActive15–35% subsidy
- MudraCentralActiveLoan up to ₹20 lakh, no collateral
- CGTMSECentralActiveNo collateral, up to ₹10 crore
- Stand-Up IndiaCentralClosed₹10 lakh – ₹1 crore loan
The ₹20.29 L project fits PMEGP, CGTMSE and Stand-Up India; MUDRA (up to ₹20 L) covers nearly all of it.
§7Money
How the investment is worked out: DC-MSME profile: machinery and test equipment ₹1.09 L (2 audio test systems ₹30,000, 20 MHz dual-trace oscilloscope ₹20,000, 2 DC power supplies ₹9,000, microphones and sound columns for testing ₹8,000, bench grinder ₹7,000, insulation tester ₹6,000, drill ₹5,000 and meters) + electrification, office equipment, tools and other fixed costs ₹65,850 = fixed capital ₹1.74 L; working capital for 3 months ₹18.55 L; total ₹20.29 L. Building rented.
Working capital: Working capital for 3 months ₹18.55 L; monthly spend ₹6.18 L, of which components for 600 amplifiers ₹5.41 L (₹901 a set).
Prices from 2002–03 — machinery, material and wage costs will be much higher now.
§8Export potential
Confirm the HS code in the DGFT ITC(HS) lookup before you export
Export council / board: ESC (Electronics and Computer Software Export Promotion Council)
- Confirm the 8-digit ITC(HS) line with DGFT or your customs broker before shipping.
- You need an Import Export Code (IEC) from DGFT before the first shipment.
§9Risks — where people fail
- Price competition from imports
- Fast change in features (Bluetooth, digital)
- Warranty returns
- Component price rise
§1030 / 60 / 90-day plan
A general plan that applies to any business. A plan for this business will be added after research.
- Days 1–30: Visit a working public address (pa) amplifier manufacturing unit, ask 10 buyers about price and quantity, and get quotations from 3 suppliers.
- Days 31–60: Udyam and the licences you need (Udyam registration, GST), a project report (DPR), and the scheme or loan file.
- Days 61–90: Space and machines, trial production, and first deliveries to 10 customers.
§11Who to connect with
Associations, clusters and training institutes — the directory is being built. Connect
§12Watch
There is no episode on this business yet. Shows are coming soon on the Podcast page.
Want to start Public Address (PA) Amplifier Manufacturing?
DPR, loan file or registration — ask us on WhatsApp.
¶Sources
Data review: 6 October 2026. Spotted a mistake? Report it. For information only — not legal or financial advice.