Specifications – Manley MAHI MONOBLOCK AMPLIFIER User Manual
Page 16

SPECIFICATIONS
Input Impedance: 110 Kohm
Input Sensitivity:
TRIODE
UL
FB MIN:
175mV
155mV
FB STD:
312mV
340mV
FB MAX:
480mV
566mV
Gain: 29dB
Negative Feedback: MIN= 3dB; STD=6dB; MAX=10dB of global NFB
Max. Output Power defined as power output reaching 1.5% THD @ 1KHz
into 5 ohms:
TRIODE
UL
FB MIN:
18W
20W
FB STD:
27W
42W
FB MAX:
28W
46W
into 8 ohms:
TRIODE
UL
FB MIN:
14W
24W
FB STD:
24W
40W
FB MAX:
25W
41W
Signal to Noise Ratio Ref. 1W:
Typically 82 dB A-WGT 20-20K
Noise Floor:
Typically 150µV = -74dBu A-WGT
Typically 650µV = -62dBu unweighted
Dynamic Range:
83dB
THD+noise @ 5W
less than 0.15%
Frequency Response at full power UL mode w/MAX NFB:
20 Hz to 20 kHz FLAT
Frequency Response at 5W into 5 ohms:
10 Hz to 30 kHz FLAT, -3.75dB @ 100KHz
Recommended Speaker Load:
Optimized for 5 ohms
Actual Output Impedance:
TRIODE
UL
FB MIN:
2.83 ohms
3.57 ohms
FB STD:
1.87 ohms
2.16 ohms
FB MAX:
1.28 ohms
1.36 ohms
Power Consumption (idle):
102 Watts (0.85A @ 120VAC)
Power Consumption (at Rated Full Power):
168 Watts (1.4A @ 120VAC)
Vacuum Tubes: 1 x 12AT7WA Ei, 1 x 6414 JAN NOS, 4 x EL84 Output per monoblock
Output Tube Quiescent Standing Current: 25mA
Set Bias for 250mVDC measured across each 10 ohm cathode resistor
Fuse types for 120VAC operation:
MDL or MDA 3 AMP / 250 Volt SLO-BLO
240VAC operation:
MDL or MDA 2 AMP / 250 Volt SLO-BLO
B+ FUSE:
MDA 4/10th AMP, 250 Volt SLO-BLO
Dimensions: 11" deep x 10" wide x 5" tall
Shipping weight each: 18 pounds
Specifications subject to change because they just might.
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