Level Control, Input Routing, Power Outputs A&B

figure: block diagram input channel A	figure: printed board assembly area
	channel A – transformer retrofitting

	-9	-6 -5-4
	-12	-3
	-12	-2
	-16	-1
	-30	-1
	-30

0 dB

LEVEL

INPUT ROUTING

DUAL/STEREO

Level Control

dB-scaled rotary controls for adjusting the power amplifier’s overall amplification. This control should be positioned between the 0 dB and the -6 dB marks to prevent distortion in source devices. The labeling indicates the actual attenuation applied to the internal specified factor of amplification.

Input Routing

If the switch is set to parallel/mono, the input connectors CHANNEL A and CHANNEL B are electrically linked for direct parallel operation. With only a single audio signal source connected, both channels are driven, while their volume levels are still individually controlled via the level controls A and B.

					If the switch is set to its dual/stereo position, channels A and B are se-
PARALLEL/MONO
					parately amplified (two channel or stereo mode).

Power Outputs A&B

The loudspeaker cables are connected to the power amplifier through high-performance binding posts

–with the necessary screw-plugs being supplied. For connection purposes, it is possible to remove the 12- pole terminal plug. Cables with a maximum diameter of 2.5 mm2 can be utilized. To provide flexible connec- tions, all floating output voltages – 25 V, 70 V, and 100 V (ISOLATED OUTPUTS) – as well as the low-impe- dance output (DIRECT OUTPUTS) of both channels are directly accessible.

AUDIO TRANSFORMER OUTPUTS

B LOW IMPEDANCE

+ 100V		BRIDGED+		100V +
+ 25V +70V		1200W/8		70V+ 25V+
+ 25V +70V	B	DUAL	A	70V+ 25V+
	B	DUAL	A
	+	600W	+
		4
100 70 0 DIRECT OUTPUTS 0				70 100
	ISOLATED OUTPUTS

figure: power outputs of the DPA 4260

DPA 4260, DPA 4245 specifications

Dynacord, a renowned name in professional audio equipment, has established a reputation for delivering high-performance amplifiers that meet the rigorous demands of live sound and installation applications. The DPA 4260 and DPA 4245 models stand out in their lineup, featuring advanced technologies and robust characteristics that set them apart in the competitive audio landscape.

The Dynacord DPA 4260 is a powerful four-channel amplifier that offers an impressive output of up to 2,600 watts, designed to drive a wide range of speakers effortlessly. One of its main features is the implementation of a sophisticated DSP (Digital Signal Processing) technology, which provides comprehensive control over audio parameters such as EQ, crossover, delay, and limiter settings. This allows users to optimize the sound output for various environments, ensuring clarity and fidelity in the audio performance.

In addition to DSP, the DPA 4260 is equipped with an advanced Power Factor Correction (PFC) system. This technology not only enhances the amplifier's efficiency but also ensures stable performance even under varying load conditions. The amplifier's robust build quality and efficient heat dissipation design make it suitable for extended operation in demanding venues.

On the other hand, the Dynacord DPA 4245 is another impressive model offering a slightly lower output of 1,400 watts but packed with its unique set of features. Like the DPA 4260, it benefits from the same DSP capabilities, allowing for detailed sound manipulation and tuning. This is particularly useful for sound engineers looking for precision in their audio setups.

The DPA 4245 also showcases versatility in its operation, featuring a selection of operating modes to accommodate different configurations, including bridge mode for driving larger loads. Its lightweight design makes it easy to transport and install without compromising on power or performance.

Both models come with comprehensive connectivity options, ensuring compatibility with various audio systems and setups, facilitating seamless integration into existing infrastructures. The front panel allows for easy monitoring, featuring LED indicators that display operational status and signal integrity.

In conclusion, Dynacord's DPA 4260 and DPA 4245 amplifiers exemplify cutting-edge technology and robust construction in the world of professional audio. With their powerful outputs, advanced DSP capabilities, and flexible configurations, these amplifiers are designed to meet the demands of professionals seeking reliable and high-quality audio solutions in live sound reinforcement and installation applications. Whether for touring, installations, or events, these amplifiers ensure a professional sound experience.