ACM-310
the 1310 is a 20mm  small tube condenser mic with a 6 micron gold diaphragm it uses a low noise Q rate tube in a class A triode circuit

Frequency Range        20-20000 Hz
Polar pattern                Cardiod
Sensitivity                     20mv/Pa                                               
Impedance                    200 ohms
Equivalent Noise level  17db (A-weighted IEC 268-4)
Max SPL for 0.5%THD  135db
Tube type                       6J1B-Q
Power requirements       Dedicated PSU (supplied)
includes  PSU, wood case, cable,  flight case, and shock mount








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ACM-3                                                                    
Type  Large 2 micron ribbon
Polar pattern  Figure 8
Sensitivity  -53db (0db=1v/pa)
Frequency response  30 to 18000 Hz
Impedance    200 ohms
Recommended load impedance   1000 ohms
Max SPL (1% THD @ 1000Hz) :  137db
Equivalent noise level to IEC 268-4 (A weighted) :  17db
Comes with velvet lined wood case
 
Comes with a mic holder
 
 
ACM-2
 
 
 
ACM-6801T                                                              
ACM-6802T                                                              
Type   Tube Condenser
Capsule size
Frequency response     20-20000Hz
Polar pattern 6801-T cardioid-- 6802-T 9 position
Sensitivity 20mv/Pa
Impedance   200 ohms
S/N Ratio   78db (Ref. Pa A-weighted)
Equivalent Noise Level 13db (A-weighted IEC 268-4)
Max SPL for 0.5% THD 135db
Tube type  12AT7 (removable, not hard-wired)
Power requirements   dedicated PSU
Size   60mm X 180mm
Weight    690g
Finish   Black satin/gold
comes with PSU, Windscreen, cable, and Flight case
Elastic shock mount  is now included
 
ACM-1                                              
Polar pattern  Fig 8
Sensitivity   -57db (0db=1V/Pa)
Frequency response   30 t0 18,000 Hz
Impedance<= 250 ohms
Recommended load impedance   1,000 ohms
Max SPL (1% THD @ 1000 Hz)    137db
Equivalent noise level to IEC 268-4 (A weighted)   17db
Comes with bag, XLR cord
ACM-4
Type   double 2 micron ribbon                                      
polar pattern    fig. 8
Sensitivity  -53db (0db=1V/pa)
Frequency response  30 to 18,000 Hz
Impedance  <=200 ohms
Recommended load impedance  1,000 ohms
Max SPL (1% THD @ 1,000 Hz)  137db
Equivalent noise level to IEC 268-4 (A weighted)  17db
Comes with wood case, shock mount
                                                              
ACM-583 FET                                                                  
                                          
Capsule size 32mm
 
 Has Low frequency roll-off (hi-pass filter) a 10db att switch and polar patt switch
 
Mic only (No case etc)
 
 
 
 
RIBBON MIC                                            
ribbon        2 micron
polar pattern    fig 8
sensitivity     -53 db (0 db= 1 V /Pa)
Frequency response    40 to 18,000Hz
Impedance   <=200 ohms
Recommended load impedance    1000 ohms
Max SPL (1% THD @ 1000Hz)  137db
Equivalent noise level to IEC 268-4 (A weighted) 17db
Size   30mm X 160mm
includes wood case
 
 
ACM-100
TRANSISTER CONDENSER MICROPHONE
 
CAPSULE SIZE-----------------------1 inch
POLAR PATTERN-------------------CARDIOID
FREQUENCY RESPONSE-------- 20Hz - 20KHz
SENSITIVITY -------------------------(@ 1000Hz. 94db SPL)--10mV/PA
RATED IMPEDANCE---------------200 ohms
EQUIVALENT NOISE LEVEL-----18db (A weight IEC 651)
MAX SPL FOR 0.5% THO @ 1000Hz--128db
POWER REQUIREMENT----------48v
 
ACM-200
PHANTOM POWERED DOUBLE RIBBON MICROPHONE
 
FREQUENCY RESPONSE--------------------------30-15000 Hz
POLAR PATTERN-------------------------------------FIGURE 8
SENSITIVITY--------------------------------------------  -30db
RATED IMPEDANCE----------------------------------50 Ohms
MAX SPL (for 1% THO @ 1000 Hz): -------------135db
 
 
ACM-900
TUBE RIBBON MICROPHONE
 
FREQUENCY RESPONSE------------------------30-15000Hz
POLAR PATTERN-----------------------------------FIG 8
SENSITIVITY-----------------------------------------    -37db
RATED IMPEDANDE-------------------------------200 Ohms
MAX SPL (for 1% THO @1000 Hz)-------------138db
Comes with power supply, 7 pin mic cable, shock mount and aluminum flight case
 
 
 
ACM-1200
Tube condenser mic
has pad and low-pass filter
Polar pattern--------------------------------------------9 positions from omni to fig 8
Sensitivity: (@1000 Hz 94db SPL)----------------20mV/Pa
Rated impedance--------------------------------------200 ohms
Equivalent Noise Level-------------------------------18db (A weight IEC 651)
Max SPL for 0.5% THO @ 1000 Hz--------------134db