These 2 rack space amplifiers utilize Ashly's advanced, efficient amplifiers perfect for low impedance, 25V, 70V or 100V installations with modest power requirements.They also feature a switch-mode power supply with Class-D circuitry, providing an extremely power-efficient solution. All TRA Series amplifiers are convection-cooled, so there’s little maintenance after the installation, and no annoying fan noise.
A 6-step LED meter for each channel lets you monitor all levels. TRA amplifiers can drive 4 or 8 Ohm loads and 25V or 70V and 100V Constant Voltage lines simultaneously. Output transformers are internally mounted. All TRA audio controls are on the rear panel.
The TRA-4150 is 4 channels with 150 watts per channel. The 150W models are capable of driving 25V Constant Voltage lines using the direct coupled 4 Ohm output.
Ashly TRA-4150 Features
- Convection cooling
- 2RU configuration
- Extremely low ambient noise
- Internally-mounted constant voltage transformers
- Extensive protection circuitry including output overcurrent protection, DC output protection, main supply rail overvoltage protection, in-rush limiting and mains fuse
- 6-step signal level and clip LEDs
- Rear panel level attenuators for each channel
- Rear panel Gain Switch: +36 dB or +26dB input sensitivity
- Euroblock inputs/outputs
- Selectable input sensitivity (voltage gain)
- Remote stand-by control
- Adjustable turn-on delay up to eight seconds
- Safety/Compliance: TUV, CE, FCC, RoHS
- 5-Year Warranty
- TRA-4150 power amplifier1
- Frequency Response (8Ω)20Hz–20kHz, ± 1.0 dB, -3dBu @ 80Hz Due to internal HPF
- Distortion (SMPTE, typical)< 0.5%–8 Ohm load, 10dB below rated power
- Distortion (THD-N, typical)< 0.5%–8 Ohm load, 10dB below rated power, 20Hz–20kHz
- Damping Factor (8Ω load, <1kHz)> 200 into 8 Ohms
- Input Impedance20k ohms, balanced
- Input Sensitivity1dBu (75W), 4dBu (150W)
- Gain26dBu, 36dBu, selectable
- Max. Input Level+21dBu
- HPF80Hz 2nd Order, defeatable
- Coolingconvection
- Output CircuitryClass D
- Amplifier/Load ProtectionOutput Overcurent, DC Output, Main Supply Rail Overvoltage, Chassis Temperature, Inrush Limiting, Mains Fuse
- Environmental40°-120°F (4-49°C) noncondensing
- Front Panel
- Controls: AC power switch
- Indicators (LED color)
- Power (blue)
- Standby (yellow)
- Protect (red)
- Clip (red)
- Signal Level -24dB, -18dB, -12dB, -6dB (green)
- Signal level -3dB (yellow)
- Clip (red)
- Rear Panel
- Controls: Input Attenuators, Gain / Sensitivity: +26dB, +36dB, Remote Stand-by, Delay
- Connectors (each channel)
- Input: 3-pin Euroblock
- Output: Euroblock
- Cordset: 3-prong IEC
- Channels4
- Max Output Power
- Per Channel, 80Hz - 20kHz, 1% THD, All Channels Driven
- 4Ω: 150W
- 8Ω: 80W
- Constant Voltage Options
- 80Hz - 20kHz, 1% THD, All Channels Driven
- 25V (per channel): 150W
- 70V (per channel): 150W
- 100V (per channel): 150W
- Line Current Draw
- All Channels Driven @ 4Ω
- Standby Mode: 102mA
- No Signal (idle): 660mA
- Typical (1/8 power pink noise): 1.95A
- Max (1/3 power sine wave): 3.80A
- Thermal Dissipation
- BTU/hr, All Channels Driven @ 4Ω
- Standby Mode: 23
- No Signal: 137
- Typical (1/8 power pink noise): 211
- Max (1/3 power sine wave): 263
- Signal to Noise
- 20Hz - 20kHz, Unweighted: >103dB
- Power Req.120VAC, 240VAC ±10%, 50/60Hz (factory set)
- Dimensions (WxHxD)19" x 3.5" x 12"
- Weight30 pounds
