PHONO TUBE PREAMPLIFIER
Model
LP2 is the first in the line of LAMM phono preamplifiers. It is a high-quality dual monaural pure vacuum tube
preamplifier. Unique topology and application of the most advanced
technological resources and processes bring the LP2 to the threshold
of excellence in sound reproduction. Despite the fact that nowadays most of the recordings are
done in a digital format, serious audiophiles and many professional
recording engineers still prefer to use LPs to capture, reproduce
and experience the atmosphere of the original performance. The LP2 is especially effective in large systems with
speakers of reference quality that make it possible to recreate the
unique qualities of LPs. The LP2 is designed to be used as part of the truly hi-end
audio system and is capable of reproducing the recorded or live
musical event with reality approaching that of a concert hall. It is also designed for use in the recording studios as a
reference preamplifier for the purpose of controlling the recording
process itself and the quality of LPs.
The
LP2 features a topology that brings out the most natural sound
performance in the audio path, as well as graceful and sophisticated
design. The most advanced technical solutions have been employed in
the design of the LP2. The preamplifier utilizes single-ended pure class A high
current topology, with no loop feedback (a very accurate passive
RIAA EQ network is used). Its unique circuitry utilizes specially selected very low
noise high
trans-conductance Western Electric 417A / 5842 vacuum tubes. Two separate inputs for MM and MC cartridges, together with
the corresponding selector/gain switches, allow to employ various
types of cartridges without the tiresome switching of cables. Audibly neutral power supply features a full-wave VACUUM
rectifier with a choke-containing filter (two chokes are employed),
and one solid-state low-voltage analogue non-switching regulator
used as the heater supply. 
High-current drive capability, in
combination with unique
single-ended class A circuitry, enable the preamplifier to drive any
cable and any reasonable real world load, while maintaining its
practically inaudible sonic signature. A unique electronic protection circuitry mutes the outputs
until the LP2 has stabilized after a turn-on; it also automatically
mutes the preamplifier in case the AC line voltage drops or is
interrupted, as well as at the turn-off of the unit.
Each
preamplifier is carefully hand-crafted with the finest grade
materials and matched components of the highest quality, some of
which include military graded pc-board materials; military graded
low noise DALE metal film resistors; 1% tolerance PRC wirewound
resistors; ELECTROCUBE and ROEDERSTEIN film capacitors; high
frequency switching grade CORNELL DUBILIER electrolytic capacitors;
specially selected long life vacuum tubes; HAMMOND chokes; FISCHER 'Camac'
connectors; JENSEN
step-up moving coil transformers. The LP2 features a custom-designed super-low noise power
transformer. AC voltage is intensively filtered by special RFI power line
filter.
The
LP2 is available in two versions:
standard and deluxe. In the deluxe version, the power supply stores more energy,
all
film capacitors in signal path are bypassed by polystyrene
capacitors of the highest available quality, and a custom-designed
massive damping panel significantly reduces all types of mechanical
vibrations which, in turn, leads to a more extended,
coherent and natural bass reproduction.
The
LP2 works on all world AC line voltages.
Here
is what the prominent audio critics have said about the LP2
...Let
me make this perfectly clear: the LP2 exceeds the standards set by its
competitors, regardless of price or prestige. It is a unique product
that blends together some of the traditional solid-state strengths of
solid stage designs such as bass power and low-noise, with the glorious
harmonic textures and dynamic conviction of tubes. The Lamm Industries
LP2 makes a statement...
Dick
Olsher, enjoythemusic.com (September, 2002)
..."Very
low noise floor", "tremendous bass weight and
definition," "magnificent midrange," and "nicely
extended treble"; has the ability "to define the physical
layout of performers in the recording space" as well as
"deliver realistic dynamic contrasts at both the micro and macro
levels"; "the level of transparency…was second to none".
"Has the ability "to define the physical layout of performers
in the recording space" as well as "deliver realistic dynamic
contrasts at both the micro and macro levels"; "the level of
transparency…was second to none."
Although
a relative latecomer to the analog party, the Lamm Industries LP2 offers
truly extraordinary performance... With its benchmark-setting noise
floor, explosive dynamics, see-through transparency, and superb
extension at the frequency extremes, the LP2 should be on the proverbial
short-list of anyone who’s looking for a phono stage at or well above
its price range.
Andrew
Chasin, soundstage.com (February, 2003)
(more coming soon)
For
complete reviews, please visit our REVIEWS page
LP1 Signature
