|
TOA Electronics DA-250F DA Series Multi-channel Digital Amplifier, 4 Channels, 4x 250W (4 ohms)/170W (8 ohms)/2x 500W bridged (8 ohms) Power Output, Frequency Response 20Hz – 20kHz (–2dB, +1dB), S/N Ratio (A weighted) 100dB, Crosstalk at 10kHz (A weighted) 70dB, DC Offset +/-5mV, Voltage Gain 29.5dB, Damping Factor 100 (1 kHz, 8Ohm), Class D design (DA250F DA 250F DA-550)
SKU: DA250F
Brand: TOA Electronics
|
|
|
|
|
Retrieving current price...
Add to
Cart Qty:
|
|
Estimate
Shipping Cost: Choose the quantity to add to cart, press the "Add to Cart" button and in the
Shopping Cart press
"Calculate Shipping".
Availability:
In Stock (see Disclaimer below).
|
|
|
|
TOA Electronics DA-250F DA Series Multi-channel Digital
Amplifier, 4 Channels, 4x 250W (4 ohms)/170W (8 ohms)/2x 500W bridged (8 ohms) Power Output, Frequency Response 20Hz – 20kHz
(–2dB, +1dB), S/N Ratio (A weighted) 100dB, Crosstalk at 10kHz (A weighted)
70dB, DC Offset +/-5mV, Voltage Gain 29.5dB, Damping Factor 100 (1 kHz, 8Ohm),
Class D design, 30% lower power consumption than conventional amplifiers,
Compact, single or dual rack-space design, Stack up to 5 units without open
spaces between units, Independent power supply for each channel, Low heat
dissipation, Recessed stepped attenuators, Comprehensive protection circuitry,
Removable dust filters for easy maintenance
General Information |
Manufacturer |
TOA Electronics |
Manufacturer Part Number |
DA-250F |
Product Name |
DA Series Multi-channel Digital Amplifier |
Overview |
The DA Series multi-channel digital power
amplifiers are ideal for multi-zone distributed speaker systems and
professional sound applications. Engineered with Class D technology, the
new DA Series amplifiers operate at 85 percent efficiency and consume
almost one-third less power than conventional analog amplifiers. The
compact and lightweight single or dual rack-space design and ultra-low
heat dissipation allow designers to rack-mount up to five units without
open space between units.
The DA Series is comprised of high and low impedance four-channel models
each equipped with an independent power supply for each channel to
assure continuous operation and unmatched reliability and performance.
Other features include recessed stepped attenuators for precise gain
calibration, removable dust filters for easy maintenance, and optional
isolation transformer.
The DA-250F and DA-250FH power
amplifiers utilize advanced digital technology to provide multi-channel
high power outputs. Featuring high efficiency amplifier topology, the
low impedance version DA-250F and high impedance version DA-250FH are
ideal for various installed sound applications. The lightweight
construction and compact dimensions of the DA Series allows for easy
placement in virtually any venue, as well as for use in stacked
configurations as required. Each amplifier is equipped with low-noise
constant speed fans for adequate cooling and designed for ultra-reliable
long-term operation with multiple independent power supplies that ensure
uninterrupted operation even if a channel fails. Redundant protection
circuitry monitors amplifier status and protects the amplifier and
system in case of problems. |
Features |
- 4x 250W (4 ohms)/170W (8 ohms)/2x
500W bridged (8 ohms) Power
Output
- Class D design – 85% efficient!
- 30% lower power consumption than
conventional amplifiers
- Compact, single or dual rack-space
design
- Stack up to 5 units without open
spaces between units
- Independent power supply for each
channel
- Low heat dissipation
- Recessed stepped attenuators
- Comprehensive protection circuitry
- Removable dust filters for easy
maintenance
|
Specifications |
Power Source |
120V AC, 50/60Hz |
Number of Channels |
4 |
Total Output All Channel Driven |
1,000W (1kHz, 4Ω)
680W (1kHz, 8Ω) |
Output Voltage per Channel |
31.6V (1kHz, 4Ω)
36.9V (1kHz, 8Ω) |
Output Current per Channel |
7.9A (1kHz, 4Ω)
4.6A (1kHz, 8Ω) |
Power Output |
8 ohms per channel 170W
4 ohms per channel 250W
16 ohms bridged 340W
8 ohms bridged 500W |
Power Consumption |
Idle power consumption 56W, 1.0A |
Frequency Response |
20Hz – 20kHz (+/-1dB) |
THD |
0.1 % (1kHz)
0.15 % (20Hz – 20kHz) |
S/N Ratio (A weighted) |
100dB |
Crosstalk at 10kHz (A weighted) |
70dB |
DC Offset |
±5mV |
Voltage Gain |
29.5dB |
Damping Factor |
100 (1 kHz, 8Ω) |
Inputs |
Input impedance 10kΩ (unbalanced), 20kΩ
(balanced)
Input sensitivity +4dB (1.23V)
Input clipping 12V (23.8dBu) |
Front Panel |
Gain controls 30 position detent
Indicators per channel: Input Green LED
Output Yellow LED
Peak Red LED
Protect Red LED
Power-On Blue LED |
Rear panel |
Input connectors Detachable Euro style
terminal block connector (electrically balanced), XLR-3-31 type
connector
Speaker output Screw terminal (M4). Accept AWG12-22 |
Protection Circuit |
Amplifier section DC output, overheat
protection, load shorting, overload current, maximum output
Power supply section Overheat protection, AC rush current |
Cooling |
Continuously constant speed fan with
front-to-rear airflow, 50,000 hours life time at 25°C |
Operating Temperature |
–10°C to +40°C (14°F to 104°F) |
Operating Humidity Under |
90% RH (no condensation) |
Dimensions |
482 (W) × 44 (H) × 401.8 (D) mm (18.98" ×
1.73" × 15.82") (EIA Standard 19-inch rack mount width) |
Weight |
6.6kg (14.6 lbs ) |
Finish |
Panel: Aluminum, alumite process,
black/Case: Plated steel sheet |
Accessory |
Euro style terminal block connector
(3-pin) × 4, Tamper-proof cap × 4 |
A-20130103-1250-130-L
M -20161115-1250-192-L M-20180523-1250-231-L
*This item is BRAND NEW -
not refurbished. It comes with all manufacturer supplied accessories, and full
manufacturer's USA warranty.
|