Warranty issues on pre-owned equipment and dealer demos

Pre-owned Lamm equipment:
We provide a 5-year warranty to the original purchaser of Lamm products obtained through an authorized Lamm dealer.  Pre-owned equipment does not carry the warranty; however, in certain circumstances we might be willing to sell the remaining balance of the 5-year warranty term (counting from the original purchase date) to interested individuals.  There are a number of conditions involved; therefore, each such case will be reconciled individually.

General information concerning all products

Screwdriver type for hex screws used to unscrew the top and bottom covers of Lamm equipment is an Allen 7/64″ hex (available from Lamm)

Shipping warning — all models except the LL2/LL2.1

Using power line conditioners with LAMM equipment: Do you recommend using power line conditioners with LAMM equipment?

All LAMM models are equipped with internally built power line filters of high quality. From our experience, our power amplifiers work better when connected to the wall socket directly, without any external filers or line conditioners. This assumes that one is using a dedicated power line. Of course, if one’s mains has electrical noise above reasonable levels then power conditioners may be used. The same applies to our preamplifiers.

Product-specific information

PACKING/UNPACKING INSTRUCTIONS FOR ALL PREAMPS

Tube types and replacement information
Please go to our FAQs page for all tube type information relating to our current and previous product lines.

L1 Preamplifier

We recommend replacing 6C19P tube about once a year to maintain the best performance of the preamplifier.

L2.1 Reference Preamplifier

We recommend replacing 6C19P and both 12AX3 tubes about once a year to maintain the best performance of the preamplifier.


Instructions for replacing the tubes in the L2 Ref.

Ventilation slots located on the top cover of the preamplifier and its power supply must not be blocked and the distance between the top cover of the power supply and any horizontal surface located above the top cover should be at least 4 inches.

We don’t offer remotes in a conventional sense of the word.  However, we have a  “remote turn on/off” feature available when the preamp and the following LAMM amplifiers are used in the same system: M1.1/M2.1/M1.2 Ref./M2.2/ML3 Signature.  This feature is activated by using remote control cables that are  ordered from us (one set — 2 pcs. — of remote link cables is $49.90). 

If you wish to order these cables, there are two options available regarding their  lengths:

(1) one cable of the actual length between the preamp’s power supply and the amp, and another a short link between the amps OR
(2) both cables of actual length, each running from the preamp’s power supply to its respective amp

This feature is activated by “remote” switch(es) located on the front panel of the preamp’s power supply.

LL2, LL2.1 Preamplifier

Ventilation slots located on the top cover of the preamplifier must not be blocked and the distance between the top cover of the preamp and any horizontal surface located above the top cover should be at least 4 inches.

LP2, LP2.1 Phono Stage

Ventilation slots located on the top cover of the preamplifier must not be blocked and the distance between the top cover of the preamp and any horizontal surface located above the top cover should be at least 4 inches.

You don’t need to use shorting plugs unless there is a strong RF in your area.   In this case, you should just put the shorting plugs in the unused inputs of the phono preamplifier.

M1.1, M1.2 Reference, M2.1, M2.2

What’s special about the load selector switch on LAMM power amplifiers  M1.2 Ref./M2.2/M1.1/M2.1?

If one RCA input is used, the other must always be shorted with a shorting plug (supplied with the amp) — otherwise, hum will be present.

IMPORTANT — as a first-time user of the amps, you should pay particular attention to operating the “load” and “power” switches located on the rear panel of the amp.  These are so-called locking switches, which means that they don’t operate by a simple flick.  You have to first pull the switch toward yourself and then move it up or down.  This type of switch is used to prevent accident flicking.  There is a Warning insert right between the plastic cover of the manual and its title paper.

ML1, ML1.1

ML2, ML2.1, ML2.2

Digital voltmeter is a must for the user of these amps

Warning for proper installation of the V1 and V2 tubes prior to use
We recommend replacing 6N6P tube about once a year (for ML2/ML2.1) and about once every two years (for ML2.2) to maintain the best performance of the amplifier.

Proper unpacking/packing instructions for the ML2.2. (note that the outer carton box is used by us for shipments to and from shows to prevent damage to the crates; the images were taken with the outer box but our standard shipping packaging includes crate only).