User manual LAVRY MP10 REV1.0

[. . . ] There is a "hi z/lo z" switch located between the two input connectors. This allows the input impedance of both channels to be matched to the type of microphones being used. For example- "lo z" would be used for Dynamic and Condenser microphones and "hi z" would be used for Ribbon Mic's. The inputs are a transformer-free electronically balanced design for accurate and extended bass response with excellent rejection of unwanted hum and noise. [. . . ] The wide gain range accommodates both the vast majority of microphones available and output levels suitable for both unbalanced "-10" and balanced "+4" level inputs. When the output switch is set to "unbal, " the maximum output level is reduced by 6 dB from the maximum level for balanced operation of +24 dBu. Even so, when feeding the output of the MP10 to an unbalanced "-10" level input, care should be taken to set the gain so that the peak signal level displayed on the MP10's meter does not exceed "-6. " This corresponds to the (approximate) 12 dB difference between the peak level for a "+4dBu" and "-10dBV" signal. Exceeding this level when feeding a "-10" input may result in clipping at the input stage of the "-10" device. Meters The output level is displayed on two 14 segment LED meters covering the range from -46 to 0 dB's below peak output level. For balanced outputs peak level is +24 dBu, and for unbalanced outputs peak level is +18 dBu. Phantom Power for Condenser Microphones The three position momentary toggle switch located between the two numeric GAIN displays (labeled "phan. ") is used to select +48V Phantom power for each channel, individually. Clicking the switch once in the up direction will enable or disable the Phantom power on the left channel, and clicking the switch once in the down direction toggles the right channel Phantom power on or off. The decimal point in the GAIN display of the appropriate channel illuminates when the Phantom power is enabled. Impedance Switch There is a toggle switch labeled "hi z" or "lo z" located on the back panel between the input and output XLR connectors. The "lo z" position should be used for low impedance Dynamic or Condenser microphones, and the "hi z" position optimizes the input impedance for Ribbon microphones. When AC power is applied, the setting of this switch is displayed in the right GAIN display during initialization. 2 G. Balanced/Unbalanced Switch The XLR outputs of the MP10 are electronically balanced and should not be connected to an unbalanced input without first setting the rear panel switch to "unbal. " Doing so will not cause damage to the amplifiers, but will raise the distortion level of the outputs significantly. The switch is located between the two sets of XLR connectors and is labeled "bal" and "unbal. " The peak output level is reduced from +24 dBu to +18dBu when the switch is set to "unbal. " After AC power is applied, the setting of this switch is displayed in the left GAIN display during initialization as "ba" for balanced and "Ub" for unbalanced. SPECIFICATIONS: Distortion- Measured at -3dBFS (21dBu) at 1kHz, 10kHz, &20kHz: Gain Setting 20 Gain Setting 40 Gain Setting 60 Less than 0. 00070%dBFS Less than 0. 00090%dBFS Less than 0. 00800%dBFS Noise- Input referenced noise at Gain Setting 40 with -999dBr input 150 Ohm source Less than -124dBu (Unweighted) Less than -127dBu (A-Weighted) Inputs- Transformer-free electronically balanced Pin 2 "+" XLR inputs with common hi/lo impedance switch. Phantom Power- +48 volts Phantom power for condenser microphones, can be enabled or disabled for each input channel individually using front panel switch. Rear panel switch for balanced Pin 2 "+" or unbalanced Pin 2 "Hot" operation. Meter- 14 segment LED meter per channel, displays output signals ranging from -42 to 0dB below peak output level. Maximum balanced peak output 24dBu, maximum unbalanced peak output is 18dBu. [. . . ] Lavry Engineering reserves the right to deny warranty service to products that have been used in rental, service bureau, or similar businesses. You may have others which vary from state/jurisdiction to state/jurisdiction. LIMITS AND EXCLUSIONS LAVRY ENGINEERING DOES NOT, BY VIRTUE OF THIS AGREEMENT, OR BY ANY COURSE OF PERFORMANCE, COURSE OF DEALING, OR USAGE OF TRADE, MAKE ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE OR NONINFRINGEMENT, AND ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. LAVRY ENGINEERING SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, SPECIAL OR EXEMPLARY LOSSES OR DAMAGES, INCLUDING, WITHOUT LIMITATION, DAMAGES TO RECORDINGS, TAPES OR DISKS, DAMAGES FOR LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, LOSS OF GOODWILL, COVER, OR OTHER PECUNIARY LOSS, ARISING OUT OF OR RELATING TO THE USE OF THE PRODUCT, OR ARISING FROM BREACH OF WARRANTY OR CONTRACT, NEGLIGENCE, OR ANY OTHER LEGAL THEORY, EVEN IF LAVRY ENGINEERING HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSSES OR DAMAGES. [. . . ]