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When a temple committee decides to buy an aarti machine, the first question is usually about size. The second, and often the harder one, is whether to choose a single drum or a double drum machine. Both play the drum and bell automatically for every aarti, but they sound different, suit different spaces and serve different needs. This guide compares single drum and double drum aarti machines side by side, so your committee can make the right choice for your temple and its festivals.

A quick refresher: what both machines do

Every aarti machine – also called a melathalam machine or kovil melam machine – uses a motor to strike a real drum and a real bell in a steady devotional rhythm. It keeps the aarti sound consistent every day, even when trained drummers are not available. If you want to understand the mechanism in detail, read our guide on how an aarti machine works. The difference between the two types lies in how many drums are played, and that changes the character of the sound.

What is a single drum aarti machine?

A single drum aarti machine has one drum and a bell (and on some models a cymbal) driven by the motor. It produces the classic, steady "dum-ting" rhythm that most devotees associate with daily aarti.

Where it works best:

• Daily morning and evening aarti in most temples

• Small and mid-size temples, shrines and village kovils

• Sub-shrines (sannidhis) within a larger temple complex

• Temples with limited space around the sanctum

Single drum machines come in the widest range of sizes – typically from 10 to 24 inches – so a committee can match the drum to the hall. A 10- to 12-inch drum suits a small shrine, while 18 to 24 inches carries across a larger hall.

What is a double drum aarti machine?

A double drum aarti machine plays two drums together with the bell. The second drum adds depth and layering, so the rhythm sounds fuller and closer to a live melam ensemble where more than one drummer is playing.

Where it works best:

• Large temples where the aarti must be heard across a big mandapam or courtyard

• Festival days, utsavams, Brahmotsavam and Navratri, when a grand sound is expected

• Temple processions and special poojas

• Temples that want their daily aarti to feel like a festival melam

A double drum kovil melam machine is the closest a machine can get to the energy of a full temple percussion team.

Single drum vs double drum: side-by-side comparison

Five questions to help your committee decide

1. How big is the space where the aarti is heard?

In a compact sanctum area or small hall, a single drum fills the space comfortably. In a large stone mandapam or an open courtyard, a single drum can sound thin, and a double drum (or a large single drum) carries much better.

2. Is this for daily aarti or for festivals too?

If the machine will mainly play for daily aarti, a single drum is usually enough. If your temple hosts regular utsavams, processions or crowded festival days, a double drum gives the celebratory sound devotees expect on those occasions.

3. What sound does your tradition prefer?

Some temples prefer a calm, simple beat that does not overpower the priest's chanting. Others prefer a rich melam that lifts the atmosphere. Listen to both types – ideally in person or on a demo video – and ask your priest which suits the temple's style of worship.

4. How much space is available near the sanctum?

A double drum machine needs more floor space. Measure the spot first and make sure the machine will not block darshan or the priest's movement. Our installation and maintenance guide explains how to plan the location properly.

5. What is the budget, and what is the long-term plan?

A double drum machine is a larger investment. Some temples start with a single drum for daily aarti and add a double drum later for festivals. Others buy the double drum first and keep a smaller single drum as a backup or for a sub-shrine.

Common scenarios and what to choose

• A small village temple with one sanctum: a 10" or 12" single drum covers daily aarti well.

• A neighbourhood temple with a mid-size hall: a 15" or 18" single drum; consider a double drum if festivals draw large crowds.

• A large temple with a big mandapam: an 18" to 24" single drum for daily use, or a double drum for a fuller sound every day.

• A temple with frequent utsavams and processions: a double drum machine as the main unit.

• A temple complex with several sannidhis: a double drum for the main sanctum and smaller single drums for the sub-shrines.

Mistakes to avoid when choosing

• Choosing only on price: a machine that sounds thin in a big hall will disappoint devotees every day.

• Choosing the biggest machine for a small shrine: too much sound can overpower chanting and echo badly.

• Ignoring festivals: if your biggest crowds come on festival days, plan for that sound, not just the daily routine.

• Not planning space: a double drum needs room; measure before ordering.

• Not asking about installation and support: a temple machine runs every day, so after-sales support matters as much as the purchase.

Questions to ask your supplier before ordering

• Can we hear a demo of both the single drum and double drum models, in person or on video?

• Which drum size do you recommend for our hall, based on its size and layout?

• How much floor space does each model need, including room around it?

• What power supply does the machine need, and do we need a dedicated socket?

• Is installation included, and who aligns and tests the machine on site?

• What does the warranty cover, and how quickly can service be arranged before a festival?

Asking these questions upfront helps the committee compare options fairly and avoids surprises after delivery.

Do you need both?

Many larger temples do use both. A single drum handles the quiet early-morning aarti or a sub-shrine, while the double drum leads the main aarti and festival poojas. If you are planning for the long term, it is worth discussing both with your supplier so the machines complement each other.

In summary

A single drum aarti machine gives a clear, steady traditional rhythm and suits daily aarti in most small and mid-size temples. A double drum aarti machine adds a second drum for a fuller, festival-style melam, ideal for large temples, utsavams and processions. Consider your hall size, how often you hold festivals, the sound your tradition prefers, the space near the sanctum and your budget.

Compare single and double drum models in our aarti machine collection, or call us for help choosing the right machine for your temple.

FAQs

Q1. What is the difference between a single drum and a double drum aarti machine?

A single drum aarti machine plays one drum with a bell for a clear, steady rhythm. A double drum machine plays two drums with the bell, giving a fuller, layered melam sound closer to a live drum ensemble.

Q2. Is a double drum aarti machine louder than a single drum?

A double drum machine generally sounds fuller and carries further because two drums play together, which is why it suits large temples and festivals. A large single drum (18" to 24") can also fill a big hall.

Q3. Which is better for daily aarti in a small temple?

For daily aarti in a small or mid-size temple, a single drum machine is usually the better choice. It is compact, sounds traditional and does not overpower the chanting.

Q4. Can a temple use both single and double drum machines?

Yes. Many larger temples use a double drum for the main sanctum and festivals, and single drum machines for sub-shrines or quieter early-morning aarti.

Q5. Is a double drum melathalam machine good for processions?

Yes. Its fuller sound makes it well suited to utsavams and processions where the rhythm needs to reach a large crowd. Check with your supplier about moving and powering it safely for processions.