Ashly CA Series Power Amplifiers

High-Efficiency Power Amplifiers

Introducing the CA Series

Ashly's proprietary D-MAX™ technology redefines Class D performance and efficiency. Engineered from the ground up, the CA Series represents the most efficient amplifiers tested, offering significant advantages in power consumption and heat management.

Key features include:

D-MAX Class D technology
Dynamic Power Factor Correction (DPFC)
SailFlow™ cooling for optimal thermal performance
2 and 4-channel models
Power output ranging from 500W to 1500W @ 4Ω
Stable 2Ω rating
70/100V capability
Installer-friendly Euroblock and XLR combo connectors
Switchable HPF and Clip Limiter per channel
Adjustable front panel Input Gain with lock-out
Solid metal front panel
5-year warranty

The CA Series amplifiers are designed for superior sound quality, preserving transient impact and spatial detail. Their light-weight and power-efficient design ensures they draw only the necessary power, preventing issues like tripped breakers. The advanced SailFlow cooling system moves air efficiently, keeping the amplifiers cool even under heavy use.

Product Lineup and Specifications

The CA Series offers a range of models to suit various audio needs:

CA Series Models:

CA-502 (2-channel, 500W per channel @ 4Ω)
CA-1.02 (2-channel, 1000W per channel @ 4Ω)
CA-1.52 (2-channel, 1500W per channel @ 4Ω)
CA-504 (4-channel, 500W per channel @ 4Ω)
CA-1.04 (4-channel, 1000W per channel @ 4Ω)
CA-1.54 (4-channel, 1500W per channel @ 4Ω)

General Power Amplifier Specifications:

Amplifier Model	CA1.54	CA1.52	CA1.04	CA1.02	CA504	CA502
Maximum Output Power - in Watts (CEA-2006/490A, 20ms 1kHz 1%THD+N, 480ms 1kHz -20dB, 120VAC, all channels driven at rated load)
Low Z output, per channel
2 Ohm	1500	1500	1000	1000	500	500
4 Ohm	1500	1500	1000	1000	500	500
8 Ohm	750	750	500	500	250	250
Low Z output, per bridged channel pair*
4 Ohm	3000*	3000*	2000*	2000*	1000*	1000*
8 Ohm	3000*	3000*	2000*	2000*	1000*	1000*
70V/100V* output
70V	1500 (direct)	1500 (direct)	1000 (direct)	1000 (direct)	1000* (bridged)	1000* (bridged)
100V	3000* (bridged)	3000* (bridged)	2000* (bridged)	2000* (bridged)	1000* (bridged)	1000* (bridged)
Total Power Draw - in Watts, all channels driven, 1/8 power sinewave
Standby	22	13	19	10	17	8
Idle (no signal)	100	31	70	19	34	17
1/8 max power	975	485	675	335	345	172
Total Current Draw - in Amps, all channels driven, 1/8 power sinewave, 120VAC (divide by 2 for 240VAC)
Standby mode	0.39	0.24	0.37	0.21	0.35	0.2
Idle (no signal)	0.68	0.36	0.64	0.34	0.5	0.27
1/8 max power	8.9	4.2	6	3	3	1.5
Total Thermal Dissipation - in BTU/hour with typical input, all channels driven, 120VAC
Standby mode	76	44	65	32	57	28
Idle (no signal)	209	105	184	96	115	57
1/8 max power, 4 Ohm	648	314	474	229	266	120
1/8 max power, 2 Ohm	754	355	576	269	304	148

Input Sensitivity:

Setting	CA-502/CA-504	CA-1.02/CA-1.04	CA-1.52/CA-1.54
@26dB gain	2.0V (+8.2dBu)	2.7V (+11dBu)	3.9V (+14dBu)
@32dB gain	1.0V (+2.2dBu)	1.4V (+5.1dBu)	1.9V (+7.8dBu)
@38dB gain	0.5V (-1.1dBu)	0.68V (-1.1dBu)	0.97V (+2dBu)
@1.4V gain	1.4V (+5.1dBu)	1.4V (+5.1dBu)	1.4V (+5.1dBu)

Features and Controls

Electronic Specifications:

Distortion (SMPTE, typical): <0.5%
Distortion (THD-N, typical, 8 Ohm, 10dB below rated power, 20Hz-20kHz): <0.5%
Signal to Noise (26dB input sensitivity, 20Hz-20kHz, unweighted): >98dB (50x models), >101dB (1.0x models), >103dB (1.5x models)
Frequency Response: 20Hz-20kHz, ±0.05dB
Channel Separation (dB from full output, 1kHz): -75dB
Damping Factor (>250 @ 8 Ohm load, <1kHz)

Controls:

Attenuators: Per channel, front panel, fully off = Mute
Remote Control Options: WR-1, WR-1.1 DC level control

Protection and Cooling:

Amplifier Protection: In-rush current, over-temperature, output DC, output over-power, AC mains voltage, mains fuses
Cooling: Continuously variable temperature controlled fan(s)

Physical:

Power Cable Connector: 20A IEC
Operating Voltage Range: 70-135VAC @110-120VAC, 140-270VAC @220-240VAC (50-60Hz, 85VAC or 170VAC min startup)
Environmental: 32°F-120°F, (0°C-49°C) non-condensing
Unit Dimensions (all models): 19"W x 3.5"H x 16.1"D (483 x 89 x 409mm)
Unit Weight by Model: Varies by model (e.g., CA-502: 15lbs / 6.81kg)
Shipping Dimensions (all models): 21.9"W x 5.43"H x 19.3"D (556mm x 13.8mm x 489mm)
Shipping Weight by Model: Varies by model (e.g., CA-502: 18.5lbs / 8.4kg)
Safety/Compliance: cTUVus, CE, FCC Class B, RoHS

DIP Switch Settings (per channel):

Switches 1-2: Input Gain (26dB, 32dB, 38dB, 1.4V)
Switch 3: Output Clip Limiter (On, Off)
Switch 4: Input High Pass Filter (80Hz 2nd order HPF, On, Off)

DIP Switch Settings (global):

Switch 5: Front Panel Disable (On, Off)
Switch 6: Standby Polarity (High: standby when open; Low: standby when closed)

Front Panel Indicators:

Power Switch LED (white): On, Off, Standby (flashing)
Clip/Mute LED (red): On at 95% max output (0.5dB below max), Mute
Signal LED (green): On at 25% max output (12dB below max)
Current LED (green): On at >2 Amps to speaker load
Temp LED (yellow): On when thermal countermeasures are being applied
Bridge LED (green): Per Channel Pair - On, Off
Protect LED (red): On for fault condition countermeasures or shutdown, Off
Disable LED (yellow): On when front panel controls are disabled, Off

Back Panel Connections:

The back panels feature:

Input Connectors: Euroblock (3.5mm), 1½" TRS and XLR Combo jack
Input Impedance: 10k Ohm
Maximum Input Level: +21dBu
Speaker Output Connectors: Euroblock (3.5mm)
Bridge Mode Switch (per channel pair): In for bridged mode, Out for stereo
Remote DC Level Control (G, CV, V+ per channel): Euroblock (3.5mm), V+ is fully on, G is fully attenuated

Diagrams of the back panels for CA-504/CA-1.04/CA-1.54 and CA-502/CA-102/CA-152 are provided, illustrating the layout of inputs, outputs, and DIP switches.

Resources

Detailed information, including Architect & Engineering Specifications and User Manuals, are available for download from the Ashly website:

http://ashly.com/ca-series-amplifiers/

2D AutoCAD files are also available at the same link.

	Ashly CA Series Power Amplifier Operating Manual Comprehensive operating manual for the Ashly CA Series 2- and 4-channel power amplifiers, covering features, requirements, safety instructions, troubleshooting, and specifications.
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