Specifications
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Section
01
Whole House Audio
AUDIO/VIDEO
1
Two Channel Stereo Contractor Amplifier
Highly versatile amplifier is designed to power 
additional zones in an existing whole house audio 
system, or multiple zones, with external impedance 
matching. Because it also includes speaker level inputs, 
and auto switching, it can also be used to place a local 
source on a pair of speakers connected to a separate 
whole-house system. Four trigger modes: 
•Audio sensing from a line or speaker level source 
•Video sensing at composite video loop-through jack 
•12VAC/DC trigger input •Current sensing AC 
accessory outlet Features: •Speaker and line input 
•12VDC trigger output •Recessed front panel gain 
controls with rear bypass •Heavy-duty binding post 
speaker outputs •Available in shelf top or 2RU rack 
mount configurations Specifications: •Power output: 
50W RMS (8ohm), 65W RMS (4ohm) per channel 
•THD: 0.08% (8ohm load) •Dimensions: 3
1
⁄2" (H)  
x 17" (W) x 8
1
⁄2" (D) 
  Order #  Mfr. #  Enclosure  ONLY
  50-8845  AMP-BB50S  Shelf top  $499.00
  50-8846  AMP-BB50S -R  Rack mount  519.00
Two Channel Stereo Contractor Amplifiers
Highly versatile amplifiers are designed to individual 
or multiple zones in whole house audio system. High 
current design makes these amplifiers stable to 2ohm, 
allowing connection of up to four pairs of speakers 
without impedance concerns. Units may be manually 
powered on/off, controlled via external trigger, or set for 
auto sensing on the line level input. Features: •Line level 
input with loop-through output •12VDC trigger output 
•Front panel gain controls •Heavy-duty binding post 
speaker outputs •Available in shelf top or rack mount 
configurations Specifications: •Power output assumes 
4ohm load •THD: 0.08% (8ohm load) •Dimensions:  
see below 3
1
⁄2(H) x 17" (W) x 14
1
⁄2" (D) 
      Output Power 
  Order #  Mfr. #  RMS x 2CH  Enclosure  ONLY
  50-8850  AMP-BB275S  100W  Shelf top  $699.00
  50-8851  AMP-BB275S-R  100W  2RU rack mount  719.00
  50-8855  AMP-BB2125  180W  Shelf top  999.00
  50-8856  AMP-BB2125-R  180W  3RU rack mount  1019.00
#50-8850, 50-8851
#50-8855, 50-8856
Electronic System Cooler
Designed for use with SpeakerCraft multi zone 
amplifiers, this cooling system can be used with any 
electronic equipment with heat dissipation issues. 
Simply mount above item in the rack, or place directly 
on top of equipment for highly effective cooling. 
Remote trigger accepts 3~24VDC signal from other 
equipment to turn on fans. Temperature sensing, 
variable speed fans detect the amount of heat being 
generated by components, adjusting speed accordingly. 
Features
: •Completely automatic operation •3.5mm 
trigger in and out connections •Dual whisper quiet 
brushless fans •Red LED power indicator •Green LED 
fan “ON” indicator •Available shelf top or rack mount 
versions •Two minute shutoff delay Specifications: 
•Air volume: 150CFM •Dimensions (shelf): 1
3
⁄4" (H)  
x 17" (W) x 10
1
⁄4" (D) •Dimensions (rack): 1
3
⁄4" (H)  
x 19" (W) x 10
1
⁄4" (D) 
  Order #  Enclosure  ONLY
  50-8840  Shelf top  $299.00
  50-8841  Rack mount  349.00
AMP100 Stereo Power Amplifier
Perfect for high fidelity situations needing an  
independent audio amplifier. Use as part of a multi–
amp configuration in home theater systems, a zone 
amplifier in distributed sound applications, or as a 
monitor amp in the studio. This solid no–nonsense 
amplifier provides 50W RMS per channel, at 8ohm, 
with less than 0.04% THD, and may be bridged for 
100W RMS mono. Additional features include A/B 
speaker outputs, with front panel control, individual 
L/R level controls, and heavy-duty five–way  
binding post outputs. Dimensions: 2.75" (H)  
x 16.5" (W) x 8" (D). 
  Order #  MSRP  ONLY
  50-6062  $219.00  $147.00
Front
Back
Eight Position Input Selector
Compact table top selector provides cost effective 
selection of up to eight stereo sources into the line level 
input of an amplifier. Ideal when multiple sources are 
present, such as television, computer, portable media 
players, CD or DVD players, and similar devices, and 
all need to be switched into a single sound system 
Features: •Rugged metal enclosure •Non skid rubber 
feet •Color coded R/L RCA female input connections 
•Individual pushbuttons for each input •Dimensions: 
2
1
⁄2" (H) x 12" (W) x 4
1
⁄4" (W) 
  Order #  ONLY
  50-6202  $34.49
Automatic A/B 
Line Level Switch
This switching device 
automatically selects between 
two line level sources to a single 
input. L/R RCA female input/
output connections accommodate left and right 
channels, making it perfect for all consumer electronic 
devices. Default input-A is selected when no signal is 
present. When a signal is sensed at input-B, the selector 
automatically switches to that input. A separate 
12VDC, 100mA signal is also provided to trigger other 
external devices. Trigger sensitivity is fully adjustable 
from 10~100mV. Off delay (from B back to A after 
absence of  signal) is adjustable in eight steps from  
0.5 seconds to 10 minutes. This unit requires 12VDC. 
Optional AC adapter available (#50-8362). 
  Order #  ONLY
  50-8385  $59.99
Mini Stereo Amplifier with USB Input
Compact amplifier easily drives a moderate pair of 
speakers and will play MP3 files directly from USB 
thumb drives or SD cards. •30W x 2CH max output 
•Three line level input selector •ID3 tag display 
•Repeat play and shuffle functions •Includes: IR  
remote control •Independent bass and treble controls 
•Dimensions: 2.5" (H) x 7.8" (W) x 5.9" (D)  
•Mfr. #PVA3U 
  Order #  ONLY
  50-13825  $101.00
NEW!
160W Stereo Power Amplifier
4A/B Speaker Selector
Featuring two auto-switching line level inputs and 
auto on/off switching, this versatile amplifier is suitable 
for a number of applications. Features: •A/B speaker 
selection •Binding post terminals •One stereo line 
output •Stereo/bridged mode selector •Balance control 
and volume control •Power output: 80W RMS x 2 
channels •Dimensions: 16 ½" (W) x 2 
3
⁄8" (H) x 8 ¼" (D) 
•Mfr. #PAMP1000 
  Order #  ONLY
  50-13700  $107.00
NEW!
Multi Zone 
Multi Channel Contractor Amplifiers
Highly versatile amplifiers are available in four 
zone (eight channel) and six zone (12 channel) 
configurations, with either 35W or 65W per channel 
output, to suite a variety of needs. Additionally, all 
models are available with tabletop or rack mount 
chassis, providing a total of eight solutions for a 
wide range of installation requirements. Features: 
•Independent line inputs for each channel pair 
•Selectable main bus input with loop through output 
•Each amplifier input can be set to left, right or 
summed mono source •Independent level trim for each 
amplifier channel •Bridging capability between channel 
pairs •3~30VAC/DC trigger input •Selectable auto-
sensing or 3~30VAC/DC trigger power ON/OFF 
•Heavy-duty binding post speaker outputs 
Specifications: •Power output assumes 8ohm load  
•See MCMelectronics.com for specific dimensions  
and distortion specifications 
  Order #  Mfr. #  Zones  Output Power  ONLY
  Shelf Top
  50-8860  AMP-BB835  Four  35W RMS x 8CH  $1079.00
  50-8865  AMP-BB865  Four  65W RMS x 8CH  2149.00
  50-8870  AMP-BB1235  Six  35W RMS x 12CH  1279.00
  50-8875  AMP-BB1265  Six  65W RMS x 12CH  2699.00
  Rack Mount
  50-8861  AMP-BB835-R  Four  35W RMS x 8CH  1099.00
  50-8866  AMP-BB865-R  Four  65W RMS x 8CH  2169.00
  50-8871  AMP-BB1235-R  Six  35W RMS x 12CH  1289.00
  50-8876  AMP-BB1265-R  Six  65W RMS x 12CH  2709.00










