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MEASUREMENTS
OF LAMM
SINGLE-ENDED AMPLIFIER model ML2
performed
by an independent party:
Mr. Bascom H. King of BHK Laboratory
(bhk@rain.org)
Fig.1. Total harmonic distortion plus
noise vs. frequency & power, 8-ohm load on the
8-ohm output.
Fig. 2. Total harmonic distortion plus
noise vs. frequency and power, 16-ohm load on the
16-ohm output.
Fig. 3. Total harmonic distortion vs.
power, 8-ohm load on the 8-ohm output.
Fig. 4. Total harmonic distortion vs.
power, 16-ohm load on the 16-ohm output.
Fig. 5. SMPTE IM distortion vs. power
output with 16, 8, & 4 loading on the 16, 8,
& 4-ohm outputs.
Fig. 6. Input voltage vs. output power,
1 KHz, 16-ohm load on 16-ohm output.
Fig. 7. One-watt frequency responses
into 16, 8, and 4 ohms on the 16, 8 and 4 ohm
outputs. At 100 KHz.
Fig. 8. 20Hz 1W fundamental and
distortion residue waveforms. 8 ohm on 8-ohm output.
Fig. 9. 20Hz 10W fundamental and
distortion residue waveforms. 8 ohm on 8-ohm output.
Fig. 10. 1KHz 1W fundamental and
distortion residue waveforms. 8 ohm on 8-ohm output.
Fig. 11. 1KHz 10W fundamental and
distortion residue waveforms. 8 Ohm on 8-ohm output.
Fig. 12. 10KHz 1W fundamental and
distortion residue waveforms. 8 Ohm on 8-ohm output.
Fig. 13. 10KHz 10W fundamental and
distortion residue waveform. 8 Ohm on 8-ohm output.
Fig. 14. Square-wave response to a
10-KHz signal into 8 Ohms; a 40-Hz signal into 8 Ohms
Fig. 1.
Total harmonic distortion plus noise vs. frequency
and power, 8-ohm load on the 8-ohm output. From top
to bottom:
18, 10, 5, 1, & 0.1W. Left channel.
Fig. 2.
Total harmonic distortion plus noise vs. frequency
and power, 16-ohm load on the 16-ohm output.
From top to bottom: 18, 10, 5, 1, & 0.1W. Left
channel.
Fig. 3.
Total harmonic distortion vs. power, 8-ohm load on
the 8-ohm output. Top to bottom at 10W, 20KHz, 20Hz,
and 1KHz.
Fig. 4.
Total harmonic distortion vs. power, 16-ohm load on
the 16-ohm output. Top to bottom at 10W, 20KHz, 20Hz,
and 1KHz.
Fig. 5.
SMPTE IM distortion vs. power output with 16, 8,
& 4 loading on the 16, 8, & 4-ohm outputs.
Right to left at 10% THD; 16, 8, & 4.
Fig. 6.
Input voltage vs. output power, 1 KHz, 16-ohm load on
16-ohm output. Left channel.
Fig. 7.
One-watt frequency responses into 16, 8, and 4 ohms
on the 16, 8 and 4 ohm outputs. At 100 KHz from top
to bottom, 8, 4, & 16. Left channel.
Fig. 8.
20Hz 1W fundamental and distortion residue waveforms.
8 ohm on 8-ohm output. Left channel.
Fig. 9.
20Hz 10W fundamental and distortion residue
waveforms.
8 ohm on 8-ohm output. Left channel.
Fig.
10. 1KHz 1W fundamental and distortion residue
waveforms.
8 ohm on 8-ohm output. Left channel.
Fig.
11. 1KHz 10W fundamental and distortion residue
waveforms.
8 Ohm on 8-ohm output. Left channel.
Fig.
12. 10KHz 1W fundamental and distortion residue
waveforms.
8 Ohm on 8-ohm output. Left channel.
Fig.
13. 10KHz 10W fundamental and distortion residue
waveform.
8 Ohm on 8-ohm output. Left channel.
Fig.
14. Square-wave response to a 10-KHz signal into 8
Ohms (top);
a 10-KHz signal into 8 Ohms paralleled by a
2-microfarad capacitance (middle);
a 40-Hz signal into 8 Ohms (bottom).
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ML3 Signature