Set-up and installation

Connectors and cables

Internal adjustments: line gain

Line gain settings

Internal adjustments: phono gain

Phono gain settings (high-gain option)

Phono gain settings (low-gain option)

The Nº28 incorporates RCA-type and XLR-type connectors for audio signal input and output.

The Madrigal-designed RCA-type connectors used for single-ended audio interconnection are a great improvement over ordinary RCA- type connectors. The gold-plated XLR-type connectors employed are of European design, and are made to professional application standards.

When connecting the Nº28 to source equipment and power amplifiers, we recommend Madrigal Audio Laboratories HPC Interconnect Cable. HPC is available in various lengths, terminated with RCA, XLR, and Camac connectors. See your Mark Levinson dealer for more information.

The Nº28 offers internal gain adjustment of the line amplifiers, in 6dB steps via two single-pole miniature rocker switches. These switches have been factory-adjusted at 6dB/single-ended and 12dB/ balanced operation. In practice, you should have enough gain so that normal listening is possible with the OUTPUT LEVEL set at approximately 6.

If you wish to increase the line gain, see "Making the internal adjustments;" refer to the table below for the proper switch positions for each gain setting.

	Switch		Gain
#1	#2	Single-Ended Output	Balanced Output
Off	Off	18dB	24dB
Off	On	12dB	18dB
On	Off	6dB	12dB
On	On	0dB	6dB

The Nº28 is available with either a high-gain or low-gain phono option. Each option offers two internally adjustable gain settings via two single-pole miniature rocker switches, one for each channel. The high- gain and low-gain phono options have been factory-adjusted at the lowest gain settings (58dB and 38dB, respectively).

If you wish to increase the gain, see "Making the internal adjustments;" refer to the tables below for the proper switch positions for each gain settings.

Switch
#1	#2	Gain	Nominal Cartridge Output (3.54 cm/sec)
On	Off	58dB	.2mV - .6mV
Off	On	64dB	.2mV and Lower

Switch
#1	#2	Gain	Nominal Cartridge Output (3.54 cm/sec)
On	Off	38dB	Greater than 2.0mV
Off	On	44dB	2.0mV and Lower