Madrigal Imaging Dual Monaural Power Amplifier guide

Single-ended inverting operation

Figure 3: Female input connector

Inverting operation should be used if a phase reversal is required. In this mode of operation, the output signal of the amplifier will be 180° out of phase with the input signal. This may be required if one component in the system inverts the signal and absolute phase at the loudspeaker is desired.

For inverting operation, the main output cables of the preamplifier must be connected to the XLR-type inputs on the rear panel of the Nº29. The pin assignments of these connectors are:

PUSH	Pin 1: Signal ground
	Pin 1: Signal ground
2 1	Pin 2: Signal + (non-inverting)
2 1	Pin 3: Signal – (inverting)
3

Connector ground lug: chassis ground

Connect the XLR-type male line-mount connector to the preamplifier main output cable so that signal "hot" (+) connects to Pin 3 and signal ground connects to Pin 1. Be sure to also connect Pin 2 to Pin 1 inside the XLR-type male line-mount connector with a piece of copper buss wire (or similar material) at the amplifier end of the cable.

Note: If you prefer not to connect Pin 2 to Pin 1 inside the XLR- type male line-mount connector, pre-shorted RCA-type input connectors are available from your Mark Levinson dealer. Insert one of these connectors into each of the RCA-type inputs (non- inverting) on the rear panel of the Nº29.

After completing the cables, connect the main outputs of the preamplifier to the left- and right-channel XLR-type inputs on the rear panel of the Nº29. Be sure to remove the shorting strap between Pins 1 and 3 before inserting the output cable connectors.

Figure 4: Connections for single-ended inverting operation

+–

Right Loudspeaker

	Nº29
+ –	– +
PUSH	PUSH
Right	Left
channel	channel

– +

Left Loudspeaker

From preamplifier main output

Dual Monaural Power Amplifier, Mark Levinson No. 29 specifications

Madrigal Imaging, a renowned name in high-fidelity audio, has long been associated with premium sound reproduction, and their Mark Levinson No. 29 Dual Monaural Power Amplifier exemplifies this dedication to excellence. This powerful amplifier is crafted to deliver unparalleled audio performance, making it a coveted choice for audiophiles and professionals alike.

One of the key features of the Mark Levinson No. 29 is its dual monaural architecture. This design eliminates crosstalk between channels, ensuring that the audio signals are rendered with remarkable clarity and precision. Each channel operates independently, allowing for a true stereo experience that enhances spatial imaging and soundstage depth.

The No. 29 boasts an impressive power output of 200 watts per channel into 8 ohms, and it can easily drive low-impedance loads, making it versatile enough to handle a variety of loudspeakers. This amplifier features a robust power supply that provides sufficient headroom for dynamic peaks, ensuring that musical crescendos are reproduced without distortion or loss of detail.

Technologically, the No. 29 incorporates advanced circuitry, including a fully balanced design that minimizes noise and interference. The differential input stage further enhances the amplifier's performance, providing a linear response across a broad frequency range. This means listeners can enjoy detailed and lifelike sound reproduction, whether they are experiencing delicate piano notes or the thunderous bass of a symphonic orchestra.

The build quality of the Mark Levinson No. 29 is uncompromising. Housed in a sleek, rugged chassis, the amplifier not only looks stunning but is engineered for durability and longevity. The use of high-quality components, including custom-made transformers and capacitors, ensures that the amplifier maintains its audio integrity over time.

In addition to its stellar audio performance, the Mark Levinson No. 29 is designed for ease of use. It features balanced XLR inputs as well as single-ended RCA inputs, offering flexibility for various audio setups. Additionally, the amplifier includes a sophisticated thermal management system, preventing overheating even under heavy load conditions.

In summary, the Madrigal Imaging Mark Levinson No. 29 Dual Monaural Power Amplifier stands out as a pinnacle of audio engineering, fusing advanced technology with exceptional craftsmanship. Audiophiles seeking ultimate fidelity will find that the No. 29 fosters a listening experience that is both immersive and enlightening, making it a worthy investment for any high-end audio system.