Studiomaster ISMA150 mixer amplifier
- 150W high-power 100V line mixer amplifier
• 6-zone speaker output for multi-area control
• Built-in mic & line mixer for announcements and music
• USB / SD MP3 playback for background music
• Clear voice output for paging applications
• Bass & treble tone control for sound tuning
• Fan-cooled with overload & short-circuit protection
- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $200
The Studiomaster ISMA150 is a powerful and reliable 150W 100V line mixer amplifier designed for public address systems, background music, and paging applications in commercial and institutional environments. It is an ideal solution for schools, offices, factories, hospitals, hotels, shopping complexes, religious places, and large buildings across India. This PA mixer amplifier supports long-distance speaker connections through its 100V line output, allowing multiple ceiling or wall-mounted speakers to be connected without signal loss. With 6 selectable speaker zones, users can easily control sound distribution in different areas from a single central unit.
- Is the Studiomaster ISMA150 suitable for 100V line speakers?
A-1 Yes, it is a dedicated 100V line mixer amplifier, perfect for multiple ceiling or wall speakers.
- Can I connect multiple speaker zones?
A-2 Yes, it supports 6 selectable speaker zones with individual control.
- Does this amplifier support microphones directly?
A-3 Yes, it has 2 mic inputs for announcements and paging.
- Can I play music without an external player?
A-4 Yes, it supports USB/SD card MP3 playback and FM radio (model dependent).
- Is this suitable for commercial installations?
A-5 Absolutely. It is designed for commercial and institutional PA systems.
Specifications
| Model | Studiomaster ISMA150 |
| Type | 150W 100V Line Mixer Amplifier |
| Rated Output Power | 150W |
| Output Voltage | 100V Line |
| Speaker Outputs | 6 Selectable Zone Outputs |
| Mic Inputs | 2 Microphone Inputs |
| Line Inputs | 2–3 Line Inputs (model dependent) |
| Auxiliary Output Level | ≥ 900 mV |
| Mic Sensitivity | ≤ 3.5 mV |
| Line Sensitivity | ≤ 350 mV |
| Frequency Response | 80 Hz – 16 kHz (±3 dB) |
| THD (Distortion) | ≤ 1% (1 kHz, normal operation) |
| Bass Adjustment Range | ±12 dB @ 100 Hz |
| Treble Adjustment Range | ±12 dB @ 10 kHz |
| Signal-to-Noise Ratio | ≥ 80 dB |
| Playback Functions | USB / SD MP3 playback, FM tuner (variant) |
| Controls | Independent Zone Volume, 2-Band EQ |
| Protection | Fuse, Short-Circuit & Overload Protection |
| Cooling | Fan Cooled |
| Dimensions (W × D × H) | Approx. 485 × 330 × 88 mm |
| Power Supply | AC 220V / 50 Hz |
| Power Consumption | Approx. 220 W |














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