We've
improved upon the Classic receiyer.
The
tradition of heathkit stereo receiver superiority began in 1967 with the
heathkit AR-15. then in 1971 came the Ar-1500. now, it's the AR-1500A, the
world's classic receiver, improved once again. Design advancements include.
Phase lock
Loop (PLL) multiplex demodulator with only one simple adjustment, your
assurance of maximum separation, droft-free performance and long-term
stability. Simplification of the AGC circuit resulting in significant
improvements in AM performance. Improved output protection for better drive
capability over taday's wider range of speaker impedances.
Now Easier
To Build
In
redesigning the AR-1500A, special care was given to making the kit even easier
to build than before. A separate check-out meter is used to check out each step
as assembly progresses. Factory-installed cable connectors are another new
kitbuilding aid.
Still tops
in performance.
The
precedent-setting performance specifications of the AR-1500 have, of course,
been retained. Conservatively rated, the Ar-1500A puts out 180 watts, 90 per
channel, into 8 ohms, with both channels driven, with less than 0,25% harmonic
distortion. Two computer designed five pole LC filters and the 4-gang, front
end combine for an FM selectivity beter than 90 dB with 1,8 µV sensitivity. And
here are some things the specs won't show you. There are outputs for two
separate speaker systems, two sets of headphones, preamp output, and monitoring
of FM with an ascilloscope such as the Heathkit Audio-Scope. Standard inputs -
all with individual level controls. Electronically monitord amplifier overload
circuitry.
Specifications
Tuner FM
Section
Monophonic:
Sensitivity: 1,8 µV
Selectivity: 90 dB
Image
rejection: 100 dB
IF
Rejection: 100 dB
Capture
ratio: 1,5 dB
Harmonic
Distortion: 0,5% or less
Intermodulation
Distortion: 0,1% or less
Stereophonic:
Channel
Separation: 40 dB or greater at
midfrequencies; 35 dB at 50 Hz; 25 dB at 10 kHz; 20 dB at 15 kHz
Tuner AM
Section
Sensitivity: 50 µV with external input; 300 µV per meter
with radiated input
Selectivity: 20 dB at 10 kHz;60 dB at 20 kHz
Image
Rejection: 70 dB at 600 kHz; 50 dB at
1400 kHz
IF
Rejection: 70 dB at 1000 kHz
Amplifier
Section
Dynamic
Power Output per Channel:
Music
Power Rating: 90 watts (8 Ω load);
1200 watts (4 Ω load); 50 watts (16 Ω load)
Continuous
power Output per Channel: 60 watts ( 8 Ω load); 100 watts (4 Ω load); 40 watts (16 Ω load)
Power
Bandwidth (for constant .25% THD): less
than 8 Hz to greater than 30 kHz
Frequency
Response (1 watt level): 9 Hz to 80
kHz, -1 dB
Harmonic
Distortion: less than 0,25% from 20 Hz
to 20 kHz at 60 watts output
Intermodulation
Distortion: less than 0,1% with 60 watts
output
Damping
Factor: Greater than 60
Channel
Separation: 55 dB (Phono)
Output
Impedance (each channel): 4 Ω through 16 Ω
Dimensions
(W x H x D): 18-1/2" x 5-1/8"
x 13-7/8"
Weight (less
cabinet): 53 lbs
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