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technician. Additional questions regarding the operation, maintenance or servicing of your
system may be referred to the Spectra Customer Service Department hotline at 1-800-777-5331.
The vacuum tubes (Type 12AX7) installed in this system have a typical lifetime of 5000 hours.
Because of its careful design and strict manufacturing standards, your Amplifier should normally
require only minimal service to maintain its excellent performance.
However, should the sound become distorted or unbalanced even at mid or low volume levels for
some reasons, it may be necessary to replace the vacuum tubes. Please read and follow the
instructions below carefully before proceeding:
1.
Turn off the unit's power by setting the POWER SWITCH to the "O" OFF position and unplug
the AC POWER CORD from the 120V~ AC power source.
2.
Leave the unit unplugged for about 60 minutes to allow the high voltage power circuits to
discharge sufficiently. Lethal voltages of 300V DC or more may exist. This also allows the
hot vacuum tubes enough time to cool down to room temperature to avoid burns.
3.
Unscrew the VACUUM TUBE PROTECTORS to expose the VACUUM TUBES inside.
4.
Always grip the body of the vacuum tube in question firmly with your clean fingers, taking
extra care not to touch its fragile pointed tip. Damaging the tube tip, or breaking the tube
could release traces mercury vapor into the air.
5.
While gripping the vacuum tube by its body, move the tube back and forth in a rocking
manner to gradually loosen it from its base socket. Always keep the removed tubes in a
suitable container with soft linings to keep them safe.
6.
Only replace the tubes with the same type of vacuum tube specified in the
SPECIFICATIONS section.
7.
Carefully align the bottom pins of the new tube with the electrical contact openings on the
base socket and install the tube vertically until it is all the way down.
Note: Replacement vacuum tubes for this system are available from many different
manufacturers. They may vary considerably in shape, size and most importantly, sound quality.
Please consult the dealers for details to make sure they fit into this system before purchasing.
Contact the Spectra Customer Service Department hotline at 1-800-777-5331 if you have any
questions or concerns about changing the tubes, or need help locating replacement tubes.
AMPLIFIER UNIT SECTION
Input Mode :
Bluetooth Module :
Electron Tubes :
Audio Output Power :
Frequency Response :
Distortion :
Signal to Noise Ratio :
AUX Input Impedance :
AUX Input Sensitivity :
Speaker Output Impedance :
AC Power Supply :
Line Fuse :
Amplifier Dimensions (WxHxD) :
SPEAKER UNIT SECTION
Speaker Output Impedance :
Tweeter :
Woofer :
Speaker Dimensions (WxHxD) :
SPECIFICATIONS
Bluetooth or 2 x AUX IN
Bluetooth v4.0 CSR8645 with aptX™
2 x 12XA7 (for pre-amplifier)
12W rms x 2 @THD10% at 1kHz per channel
20Hz ~ 20kHz (+/- 2.0 dB)
<0.5% at 5W
>86db
100 kΩ
500mV
4Ω ~ 8Ω
AC 120V~ 60Hz 1A
1.6A, Ø5x20mm (slow-blow type is recommended)
9" x 5.12" x 7.28" (230 x 130 x 185 mm)
6Ω
8Ω 10W max, Ø1-1/4"
6Ω 20W max, Ø3.5"
5.12" x 8.27" x 7.28" (130 x 210 x 185 mm)
E-12
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