Features at a Glance
Key Features
- Installation amplifier with comprehensive I/O for small to mid-sized facilities
- Efficient Class D amplifier supports low-impedance (120W x 2ch @ 4Ω/8Ω) and high-impedance (240W x 1ch, 100V/70V) connections
- Equipped with Bluetooth® receiver for wireless music streaming from portable devices
- 2 Line inputs (RCA connectors)
- Mic/Line input with switchable Ducking/Paging function to automatically mute background music during announcements
- Built-in mixing with front-panel knobs for all inputs
- Compact half-rack design for convenient placement on desktop or shelf
- Bluetooth® antenna can extend allowing you to place it in the optimal position for your specific space
- 2-band EQ and high pass filter (recommended for high-impedance applications) on output allow you to fine-tune the system response
- Output can be optimized for any speaker configuration with Mono/Stereo switching (low-impedance mode)
- Master volume can be adjusted remotely from external controllers (sold separately)
- Line output allows you to create additional zones by cascading to other power amplifiers
- Can be rack mounted with optional AK-RM05 rack kit (sold separately)
Spec description
| Speaker output | |
| High impedance | |
| Rated output | 240W × 1ch (70V / 100V) |
| Composite impedance | |
| 100V | 42Ω or higher |
| 70V | 21Ω or higher |
| Connector | Euroblock 5.08 mm pitch (2 pin) |
| Low impedance | |
| SPEAKER SELECT: 4Ω | |
| Load impedance | 4Ω or higher |
| Rated output | 120W × 2ch (4Ω @ 1k Hz, 1 % THD) |
| SPEAKER SELECT: 8Ω | |
| Load impedance | 8Ω or higher |
| Rated output | 120W × 2ch (8Ω @ 1k Hz, 1 % THD) |
| Connector | Euroblock 5.08 mm pitch (4 pin) |
| Analog audio input | |
| Mic/line inputs (MIC/LINE IN) | |
| Connector | |
| Front | Combo jack (balanced) *¹ |
| Rear | Euroblock (balanced) 3.81 mm pitch (4 pin) |
| "MIC" Selected | |
| Maximum input level | -30dBu |
| Minimum input level | -65dBu |
| Input impedance | 2kΩ or more |
| "LINE" Selected | |
| Maximum input level | +20dBu |
| Nominal input level | +4dBu |
| Input impedance | 10kΩ or more |
| Line inputs (LINE IN 1/LINE IN 2) | |
| Connector | RCA pin jacks (unbalanced) |
| Maximum input level | +6.0dBV |
| Nominal input level | -10.0dBV |
| Input impedance | 10kΩ or more |
| Analog audio output | |
| Line outputs LINE OUT | |
| Connector | RCA pin jacks (unbalanced) |
| Maximum output level | +6.0dBV |
| Nominal output level | -10dBV |
| Output impedance | 200Ω |
| Bluetooth® | |
| Version | 5.1 |
| Output class | Class 2 about 10m unobstructed transmission distance *² |
| Supported profile | A2DP |
| Codecs | SBC、AAC |
| External control (VOL. REMOTE connector for output volume adjustment) | |
| Connector | 3.81mm pitch (3 pin) Euroblock (1:Vcc 5V / 2: Control / 3: GND) |
| Other | |
| Power | AC100 - 120V, 50/60Hz (North America) AC220 - 240V, 50/60Hz (Europe) |
| Cooling method | Natural air cooling |
| Guaranteed o perating temperature range | 0℃ - 40℃ |
| Guaranteed o perating humidity range | 5% - 85% (no condensation) |
| Power consumption | |
| Rated | 58W (1/8W output, 1kHz sine wave, @ 4Ω) |
| Idle | 18W |
| Dimensions | 214(W) × 44(H) × 298(D) mm excluding protrusions and Bluetooth antenna |
| Weight | 2.5kg |
| Included | MA-BT240 × 1 Power cord × 1 Bluetooth Antenna × 1 Euroblock plugs: Speaker output Hi-z 5.08 mm pitch (2 pin) × 1 Lo-z 5.08 mm pitch (4 pin) × 1 MIC/LINE IN 3.81mm pitch (4 pin) × 1 REMOTE 3.81 mm pitch (3 pin) × 1 Cable band kit × 1 Foot parts × 4 Start-up Guide (including warranty) × 1 TASCAM ID registration guide × 1 |
Audio performance
| Frequency response | 20 Hz to 20 kHz +2 dB/–2 dB (LINE IN 1 to SPEAKER OUT, 1/8 rated output, TREBLE/BASS flat) |
| Distortion | 0.05 % or less (LINE IN 1 to SPEAKER OUT, 1kHz, at 1/8 rated output) |
| S/N ratio | 92 dB or more (LINE IN 1 to SPEAKER OUT, 1kHz, at rated output) |
| Crosstalk | 70 dB or more (LINE IN 1 to SPEAKER OUT, 1kHz, at rated output) |
*1
XLR 3 31 equivalent (1: GND, 2: HOT, 3: COLD),
6.3mm (1/4") standard TRS jack (Tip: HOT, Ring: COLD, Sleeve: GND)
*2
Transmission distance is an estimate. The transmission distance may vary depending on the surrounding environment and radio wave conditions.
Note: 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms



