TOA A-230 30-Watt Mixer Power Amplifier — Reliable Public Address Audio for Every Space
When it comes to public address systems, one thing matters above everything else: reliability. Whether it’s the Fajr Azan echoing through a mosque in Sylhet, a morning announcement in a school in Rajshahi, or background music flowing through a retail showroom in Dhaka — the amplifier driving that audio needs to perform consistently, day after day, without drama. That’s precisely the reputation the TOA A-230 30-Watt Mixer Power Amplifier has earned across decades of real-world installations worldwide.
TOA is not a newcomer. With more than 70 years of specialization in professional audio products, TOA designed the A-230 as a complete entry-level mixer amplifier package that includes the features and functions best suited for background music and paging applications. It’s the kind of product that audio professionals in Bangladesh reach for when the brief is clear: install it, configure it once, and trust it to run for years without issues.
The TOA A-230 is designed to deliver consistently high-quality performance and reliability along with easy installation and simple operation. That combination — professional audio quality with accessible, no-fuss setup — is what makes it such a popular choice for mosques, schools, offices, restaurants, retail stores, and small halls across Bangladesh where a dedicated audio engineer isn’t always on-call.
What really separates the A-230 from generic amplifiers in the same price range is how thoughtfully the feature set is built around real PA use cases. Separate bass and treble tone control functions make the sound clear and comfortable to listen to, while Mic 1 auto-muting facilitates announcements at any time — with a quick return to the previous audio state automatically. No awkward pauses, no manual switching mid-broadcast — just clean, uninterrupted public address capability exactly when you need it.
The amplifier supports both 220–230V AC mains power and 12V DC operation, making it genuinely versatile for environments where a stable power supply isn’t guaranteed — a practical reality for many installations outside major city centres in Bangladesh.
TOA A-230 30-Watt Mixer Power Amplifier Specifications
| Specification | Details |
|---|---|
| Model | TOA A-230 |
| Rated Output Power | 30 Watts |
| Power Consumption | 34W (AC operation, IEC60065) |
| Power Supply | 220–230V AC or 12V DC |
| DC Current Consumption | 4.5A (at rated output) |
| Frequency Response | 50 Hz – 20 kHz |
| Total Harmonic Distortion | 1% or less at 1 kHz, 1/3 rated power |
| MIC Inputs (MIC 1–3) | -60 dB (1.0 mV), 600Ω, unbalanced phone jack |
| AUX Input | -20 dB (100 mV), 10kΩ, unbalanced RCA pin jack |
| Speaker Output (High Impedance) | 330Ω — 100V line |
| Speaker Output (Low Impedance) | 4Ω — 11V |
| Output Configuration | Floating balanced |
| S/N Ratio | 60 dB or more (MIC 1–3); 70 dB or more (AUX) |
| Tone Control — Bass | ±10 dB at 100 Hz |
| Tone Control — Treble | ±10 dB at 10 kHz |
| Muting | MIC 1 overrides all other MIC and AUX inputs with 0–30 dB attenuation; auto-release after 3 seconds |
| Indicators | Power LED, Signal LED |
| Panel Material | ABS Resin, Black |
| Case Material | Steel Plate, Black |
| Dimensions | 350 (W) × 100 (H) × 240 (D) mm |
| Weight | 3.5 kg (7.72 lb) |
| Warranty | 1 Year Brand Warranty |
Why You Buy TOA A-230 30-Watt Mixer Power Amplifier
- TOA’s 70+ Year Legacy of PA Reliability in a Simple, Affordable Package — Most budget-range amplifiers available in Bangladesh sacrifice audio quality for price, resulting in distorted announcements, hum, or premature hardware failure. The TOA A-230 solves this core frustration by bringing a globally trusted professional audio brand’s engineering into an accessible, entry-level form factor. With less than 1% total harmonic distortion, a 50Hz–20kHz frequency response, and a steel plate chassis built for longevity, it delivers performance that generic local alternatives simply cannot match — at a price point that makes it the default choice for mosques, schools, offices, and shops across Bangladesh.
- Dual 100V / 4Ω Output Supports Both Existing and New Speaker Installations — One of the biggest pain points when upgrading or setting up a PA system in Bangladesh is compatibility — particularly in older buildings where 100V line speaker systems are already installed. The A-230 provides both high-impedance 100V line output and low-impedance 4Ω output simultaneously, meaning it works with virtually any speaker configuration without requiring additional transformers, adapters, or rewiring. Whether you’re connecting ceiling speakers in a mosque or horn speakers in a warehouse, the A-230 integrates cleanly into your existing setup.
- MIC 1 Auto-Muting Makes Live Announcements Seamless in Any Environment — For anyone who has used a basic mixer amplifier without priority muting, the experience is familiar: you want to make an announcement, but background music plays over your voice, or you have to manually lower the volume first. The A-230’s MIC 1 muting function overrides all other MIC inputs and the AUX input with 0–30 dB attenuation, and automatically returns to the previous state after 3 seconds once the signal disappears — making every announcement, call to prayer, or emergency broadcast sharp, clear, and professionally delivered without any manual intervention.
FAQ
Q1: Is the TOA A-230 suitable for mosque PA systems in Bangladesh?
Yes — it’s one of the most widely installed amplifiers in mosque PA systems across Bangladesh, and for good reason. The MIC 1 auto-muting feature facilitates announcements at any time with a quick return to regular operation, which is ideal for the Azan call interrupting background recitation or ambient audio. The 100V line output supports multiple ceiling or wall-mounted horn speakers across large prayer halls, and the bass and treble tone controls allow the Imam’s voice to be tuned for natural, comfortable projection throughout the space. The 12V DC backup operation is an added advantage during load-shedding situations.
Q2: How many speakers can be connected to the TOA A-230?
The number of speakers depends on the total impedance load rather than a fixed count. The total impedance of the 100V line is 330Ω, and output levels are adjustable with individual volume controls. In practical terms, for a 30-watt amplifier on a 100V line, you can connect multiple ceiling or horn speakers as long as their combined wattage does not exceed 30W. A common configuration in Bangladeshi installations is four to six 5W ceiling speakers or two to three 10W wall speakers — always ensuring the combined load stays within the amplifier’s rated capacity.
Q3: What is the difference between the TOA A-230 and the TOA A-2030?
Both are 30-watt mixer power amplifiers from TOA, but they target slightly different installation levels. The A-230 is the compact, entry-level model featuring 3 MIC inputs, RCA AUX, and dual AC/DC operation in a 350mm-wide chassis — perfect for smaller spaces like classrooms, small mosques, and retail shops. The A-2030, by contrast, features 3 balanced XLR MIC inputs, 2 AUX inputs, a REC output, phantom power for condenser microphones, and a wider 420mm chassis, making it the better choice for more demanding professional installations requiring balanced connections and condenser mic support. For straightforward background music and paging in Bangladesh’s typical small-to-medium venue, the A-230 delivers everything needed at a more accessible price.










