Audio Database
LNP-2L
Commentary

A preamplifier that was born as the highest peak of modern amplifier.

The LNP-2L has been replaced with the original ML module specifications from the Burwen Corporation which was used in the LNP-2.

The amplifier consists of three stages : a phono amplifier, an input amplifier, and an output amplifier. Each stage has one module per channel, and each stage has one module for the meter. There are eight modules in total.

The LEMO connector is a CAMAC-type connector used for special applications such as medical devices and physical measuring instruments. The LEMO connector is also used for the tape input / output and main out output. The LEMO connector is also used for the tape input / output and main out output.

We put top-of-the-line products into parts such as volume and changeover switch.
The meter is made by Weston and can be switched to VU or peak with a special module. In the HF + position, it can be adjusted to high frequency so that it can be used in cassette recording.

The power supply unit (PLS-153L) is separated.

Model Rating
Type Preamplifier
<General>
Configuration Eight module configuration
2 peak reading amplifiers for meter
3-stage amplifier configuration using 3 units each of 2 channels
Two spare module sockets
Input impedance Phono : 50k Ω
High Level : 11.5k Ω or more
Output level Record out1, 2, main out : about 10 Ω
(Applicable Load Impedance 600 Ω or More)
Maximum power output 8Vrms
Gain Overall : 60 dB
Phono Amplifier : 30 dB (1 kHz)
Input amplifier : 20 dB
Output amplifier : 10 dB
Gain control Input amplifier : 0, 5, 10, 15, 20 dB
Output Amplifier : 0, 10 dB
Level control 2 ch independent input level volume for input amplifier : 0 ~ -40dB, ∞
Output Level Volume : 0 ~ -40dB, ∞
Tone control Low : ± 8 dB (20 Hz)
Mid : ± 3 dB (5 kHz or more shelving)
High : ± 8 db (20 kHz)
Low / High : 2 dB steps, 9 positions
Mid : 1 dB step, 7 positions
<Meter display>
Meter The meter is WESTON precision grade and constantly monitors the recording output level.
As a VU meter 0VU=0.775dB 0dBm
Switchable to 0.387 v -6dBm and 1.228 v + 4 dbm
As a peak meter 0VU=2.449V +10dB
Attack time : 5 μ sec
Peak hold time : about 2 sec
Response : 10 hz to 30 khz Flat
As an HF + peak meter High-frequency preemphasis display of + 8.5 dB at 20 kHz for low-speed recording such as cassette tapes
Otherwise same as peak meter
<Others>
Spare module socket
Available Options with
Connecting microphones (such as the Shops CMC series) with a 12-volt phantom power supply
Addition of an output buffer amplifier
Addition of a low boost circuit
Pwer 100 VAC, 50Hz/60Hz
Power consumption Approx. 20W
External dimensions Body : Width 483x Height 150x Depth 206 mm
Power Supply : W 101x H 101x D 256 mm
Weight Body : 4.7 kg
Power Supply : 2.2 kg