NEW
ADDITION 5/19/09
(Click
on above thumbnails to enlarge photos)
warranty
PIONEER
STEREO
INTEGRATED
AMPLIFIER
PIONEER
A-60
A60
#...3881S
Circa 1982-85
"WORLD
AC POWER"
™
MIJ
SOLD 7/23/09
|
|
warranty
PIONEER A-70
NON-SWITCHING
INTEGRATED AMPLIFIER
Circa '82-'85
SOLD
|
|
|
- |
PIONEER QL-600A
SOLD
QUAD 4-CHANNEL / STEREO
INTEGRATED AMPLIFIER
AMP |
|
|
|
|
- |
PIONEER
SA-410
SOLD
STEREO
INTEGRATED AMPLIFIER
|
|
|
NEW ADDITION
(Click
on above thumbnails to enlarge photos)
warranty
PIONEER
SA-510
STEREO INTEGRATED AMPLIFIER
(C)
C.B.S.
SOLD
2/22/07
|
PIONEER SA-510
STEREO INTEGRATED AMPLIFIER
SOLD
|
PIONEER SA-510
STEREO INTEGRATED AMPLIFIER
SOLD 2/1/06 |
NEW ADDITION
4/3/10
(Click
on above thumbnails to enlarge photos)
warranty
VINTAGE
PIONEER
STEREO
INTEGRATED AMPLIFIER
PIONEER
SA-520
AMP
#...949S
Circa 1981-82
MIJ
SOLD 11/3/10
|
|
|
PIONEER SA-600
STEREO INTEGRATED AMPLIFIER |
NEW ADDITION
PIONEER SA-608
STEREO INTEGRATED AMPLIFIER
SOLD 6/15/05
|
(Click
on above thumbnails to enlarge photos)
warranty
PIONEER
STEREO INTEGRATED AMPLIFIER
PIONEER SA-608
SA510
#...016D
"WORLD
AC POWER"
™
Circa 1978-'80
MIJ
SOLD 12/13/12
SHIPPED TO
KANSAS
Our
technician has completely gone through and 'Certified'
this unit.
Following ext / int visual inspection entire unit was cleaned inside
and out including all
contacts, switches and controls.
Switches and controls now clean sounding and performing solidly.....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
On our test bench the
internal amplifiers of this particular unit, #...016D,
produced XX volts
per channel at 8 ohms for XX watts per channel and
XX volts at 4 ohms
for XX watts per channel via discrete outputs (2x
NEC 2SB705A & 2x 2SD745A)
Idle current draw 180mA.
DC out measured at <8mV on either side.
Very quiet with Floor noise measured at 2mVAC.
Pioneer SA-608/SA-6800 Original Specifications:
"Continuous Power output of XX Watts per channel, min. @
X Ohms from
20Hz to 20kHz @ <XXX%THD or XX Watts per channel, min. @ 4 Ohms from 20Hz
to 20kHz @ <XXX%THD." (text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Design
type:
....
Damping
Factor:
XX@ XXXkHz
- THD & IMD;
XX% at full rated power into
XΩ
w/ XXXkHz @ XXX% @ 1W
Freq
Response:
XXXkHz at full rated power
S/N:
XXXdB for 'non-phono' inputs
Input
Sensitivities 'non-phono' inputs:
....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Bass Control; XXdB @
XXHz
Treble Control; XXXdB @
XXkHz
Subsonic Filter;
XXdB / oct @
XXkHz
Loudness; ....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Phono Section:
Phono MM
Sensitivity:
XXXXkHz
Phono MM Maximum
Input Level:
XXXmV
RMS
Phono
THD:
XX% @
1kHz
Freq
Response:
XXXXkHz at full rated power
S/N:
XXdB
Again, as
stated before,
our
technician has completely refurb'd
this
Pioneer SA-608 Integrated Stereo Amplifier, cleaning and testing all and it gets our full
'Certification'......
...... Includes our
30 day
limited warranty!
PIONEER SA-608 INTEGRATED AMP
Cond. 8.5++
(C) R.R.
SOLD 12/13/12
SHIPPED TO
KANSAS
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
NEW LISTING 1/13/14
(Click on above thumbnails to enlarge photos)
warranty
PIONEER
STEREO INTEGRATED AMPLIFIER
PIONEER SA-708 / SA708
#...0164D
"WORLD
AC POWER"
™
Circa
1978-'80
MIJ
For sale
SOLD 1/16/14
SHIPPED TO NEW MEXICO
ü
Our
technician has completely gone through and 'Certified' this unit.
ü
Following ext / int visual inspection entire unit was cleaned inside and
out including all contacts, switches and controls.
ü
Voltage selector corrected for 120VAC.
ü
Left channel driver board
re-built, replacing parts as necessary.
ü
Relay cover removed, and contacts burnished.
ü
Bias and DC
offset adjusted to correct spec.
ü
Meters calibrated per service manual.
ü
Switches and controls now clean sounding and performing solidly.
ü
All functions tested for perfect operation.
ü
All inputs tested and both
side produces clean and even sine waves!
ü
No power supply hum of any
kind. It's dead silent!
ü
Following electronic refurb, entire unit was
cosmetically detailed.
(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
(C)
K.K.
SOLD 1/16/14
SHIPPED TO NEW MEXICO
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
|
|
PIONEER SA-710
STEREO INTEGRATED AMPLIFIER
SOLD 1/10/05
|
(Click
on above thumbnails to enlarge photos)
warranty
PIONEER
SA-710
STEREO INTEGRATED AMPLIFIER
SOLD 7/20/06
|
|
PIONEER
SA-900
STEREO INTEGRATED AMPLIFIER
SOLD |
PIONEER SA-950
STEREO INTEGRATED AMPLIFIER
AMP
MIJ
SOLD
|
|
|
|
|
PIONEER SA-5200
INTEGRATED STEREO POWER
AMPLIFIER
SOLD
|
NEW ADDITION
4/27/10
(Click
on above thumbnails to enlarge photos)
warranty
PIONEER
VINTAGE STEREO
INTEGRATED AMPLIFIER
SA-6500
SA6500
#...0707
Circa 1977-79
MIJ
SOLD 5/13/10
|
PIONEER SA-6800
STEREO INTEGRATED AMPLIFIER
SOLD
|
NEW
LISTING
1/11/19
(Click on above thumbnails to enlarge photos)
warranty
REFURBISHED / FULLY SERVICED / WARRANTED
VINTAGE PIONEER STEREO INTEGRATED AMPLIFIER
PIONEER SA-7500 / SA7500
MIJ
Circa
1976-78
SOLD 3/17/19
SHIPPED
TO STEVE IN CONNECTICUT
ü
Our
technician has completely gone through and 'Certified' this unit.
ü
Everything was cleaned inside and out including all switches, controls
and contacts. Cleaned and re-lubed all control shafts.
ü Internal fuses checked for correct value / function and replaced where
necessary.
ü
Solder
joints reflowed on all possible high heat and stress points
ü
Amplifier section had output bias and DC offset adjusted to spec
levels after 10 min warm-up.
ü
All functions tested for perfect operation.
ü
Following above procedures, unit was cosmetically detailed inside and
out.
ü
Surface corrosion
painstakingly removed from all RCA I/O jacks and binding post
flanges
ü
All inputs tested and both sides produce clean and even sine waves into
static 8 & 4 ohm loads! No power supply hum of any kind. It's dead
silent!
ü
Following restoration procedures, the unit was run continuously at
medium volume, as all our amplifier / receivers are, into a load with
"Loudness" on and both Tone Controls at 10 for 48 hours.
(Technicians note, "this is a very 'tech friendly & serviceable'
amplifier design")
Total tech time 7 hours.
On our test bench, each internal amplifier of this particular unit, #...328M,
produced peak power
of
21
Volts per channel at 8 ohms for
55 Watts per channel and
17 Volts at 4 ohms for
76
Watts per channel via
TO3, metal cased, discrete output
transistors (2x 2SB541 & 2SD388).
DC offset set to 0 mVDC
both channels w/ 5.1k Ohms shorting plugs. Bias set to correct
30mVDC AC Idle current at
200mA. Floor
noise >-60dBm.
____________________________
Great performing, sounding
and Versatile, Pioneer SA-7500 integrated
amplifier. Great amp for 2-channel stereo
systems up to medium-large and "recording
studio" use. "Real" output transistors and
substantial power supply!
Just a great 'all-around utility' amplifier for probably more than
80% of the audio systems out there.
Again, we have complete gone through and tested all functions of
this unit. It sounds incredible. Unit looks great with only slight, minor cosmetic
issues to the face (see lower right photos above).
All functions test
perfectly and it sounds great! Again, great amp
for medium to med-large audio systems, and where someone needs a
'solid' amount of features without 'fluff'.
Comes with an 'e-copy', PDF download of the
Pioneer SA-7500 owners / users / instruction manual and the service
manual if the purchaser desires. Measures 16.5" wide x 13.5"
deep x 5.75"
tall and weighs 27 lbs unpacked.
PIONEER SA-7500
Cond. 8.5
(Cons. M.H.)
SOLD 3/17/19
SHIPPED
TO STEVE IN CONNECTICUT
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
NEW LISTING
3/21/18
(Click on above thumbnails to enlarge photos)
warranty
VINTAGE
PIONEER STEREO INTEGRATED AMPLIFIER
PIONEER SA-7800 / SA7800
'BATTLE WORN' COSMETICALLY, BUT
TECHNICALLY, A
NON-SWITCHING, 'CLASS-A LIKE' POWER HOUSE
#...3645S
Circa
1978-'80
MIJ
SOLD 6/12/18
SHIPPED TO MIKE IN MARYLAND
ü
Our technician has completely gone
through and 'Certified' this unit.
ü Following ext / int visual inspection entire unit was cleaned inside
and out including all contacts, switches and controls.
ü Bias adjusted to correct spec.
ü Meters calibrated per service manual.
ü Switches and controls now clean sounding and performing solidly.
ü All functions tested for perfect operation.
ü All inputs tested and both side produces clean and even sine waves!
ü No power supply hum of any kind. It's dead silent!
ü Following electronic refurb, entire unit was cosmetically detailed
(as it 'practically' allowed).
Classic brushed aluminum face plate
with the original aluminum
knobs (volume knob may be a replacement).
This unit does have a few 'battle scars'. Besides the fairly typical
'finish peel', there's some 'clouding' thru the finish on the meter
bezel, and some 'light spots' across the face plate that nothing
seemed to effect (It's not a 'beauty contest winner' but not
'offensive', see photo collage above).
Following 12+ hours of restoration
procedures, the unit was ran continuously at medium volume, as all
our amplifier / receivers are, into a 4 Ohm load with "Loudness" on and
both Tone Controls at 10 for 48 hours.
On our test bench the internal amplifiers of this particular
unit, #...3645S,
produced 26 Volts per channel at 8 ohms for
84 Watts per
channel and 23 Volts
at 4 ohms for 132 Watts per channel
via discrete outputs (2x 2SA1075 & 2x 2SC2525)
Idle current draw .3A.
DC out measured at <25mV on either side.
Very quiet with Floor noise measured at <00.1mVAC.
____________________________
Very
classy silver face / Blue Florescent power meter integrated amp.
Will match great with Pioneer Cassette Decks and Reel to Reel decks
utilizing their famous "Blue" meters.
Barring it's cosmetic blems
it's a Great amp for home or project
recording studio use.
Pioneer SA-7800 Integrated Amplifier
TECHNICAL Features include:
- 'Non-Switching'
amp utilizes 'super
....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
(although there's also a 'Tone Defeat'
switch).
- Separately fastened RCA I/O jacks with 'point to point' internal
connections
Pioneer SA-7800 Integrated Amplifier Features
and 'Creature Comforts' include:
- Produces full power into only '8 Ohms' (most amps can only produce
their full power potential into 4 Ohms)
....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
- "spring-clip" speaker connectors for A&B
speakers
- 2 Switched and 2
un-switched AC outlets for a maximum load of 400
Watts of external
gear.
Pioneer SA-7800 Original Specifications:
"Continuous
Power output of
....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Design
type: 2 Channels, Integrated Pre /
Class AB operation Power Amplifier
Power Output: Continuous power output,
10Hz-50,000Hz: ....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
w/ 20-20kHz
Freq
Response:
10Hz-50kHz at full rated power
Input
Sensitivities 'non-phono' inputs for full rated
output:
150mV / 50KΩ via RCA's
Output at Tape Monitors:
150mV via RCA's
Bass Control: ±10dB @ 100Hz
(SA-708 is only 7.5dB cut / boost)
....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Input Freq Response range (non phono inputs):
5-100,000Hz
Phono
Section:
Freq
Response:
20Hz-20kHz RIAA EQ
....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Phono
MM Maximum Input Level: 200mV
RMS while still maintaining 0.003% THD @ 1kHz
Again, as stated before, our technician has completely refurb'd this
Pioneer SA-7800 Integrated Stereo Amplifier, cleaning and
testing all and it gets our full 'Certification'.
Entire unit, including the original brushed aluminum, Face and knobs
are in beautiful condition. Unit looks beautiful and sounds great
with what the restoration tech called "Gutsy" power & punch! Just
FYI, this Pioneer SA-7800 has considerably better specs than it's little
brother, the SA-608 / SA-6800 and certainly it's
'alter ego' SA-708,
(check S/N, tone controls and damping factor particularly).
Comes
with an 'e' copy / pdf download of the original Pioneer SA-7800
owners / users manual and brochure if purchaser so desires.
Measures 16.5" wide x 14.75" deep x 6" tall and weighs 27.5 lbs
unpacked. Includes our 90 day limited
warranty!
Pioneer SA-7800 INTEGRATED AMP
Cond.
7.5-8 (due to cosmetic blems)
SOLD 6/12/18
SHIPPED TO MIKE IN MARYLAND
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
|
NEW LISTING
5/4/12
(Click on above thumbnails to enlarge photos)
warranty
PIONEER INTEGRATED
STEREO AMPLIFIER
SA-9100 SA9100
OLD-SCHOOL, 2-CHANNEL STEREO
INTEGRATED AMPLIFIER
#...1869
Circa 1973-75
"WORLD
AC POWER"
™
MIJ
SOLD 5/7/12
This unit has had complete service including cleaning
everything including all switches, controls and contacts (no easy task
on this amp as gaining access to ALL of the controls requires complete
disassembly of the front 'chassis' panel (behind the face panel) and
removal of control circuit boards. Just FYI incase you're embarking on
this venture yourself on one). We also replaced the 'Power' and
'Protection' lamps with fresh bulbs. Following bench work, entire unit
was cosmetically detailed inside and out.
.....
Features include:
.......(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Pioneer
SA-9100 Specifications:
Design
type:
......
Damping
Factor:
......
- THD & IMD;
......
Freq
Response:
......
S/N:
......(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Input
Sensitivities 'non-phono' inputs:
......
Input
Sensitivity Power Amp:
......
Bass Control; ......
Treble Control;
......
Output:
.....
(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Phono Section:
Phono MM
Sensitivity:
......
Phono MM Maximum Input
Level:
....
S/N
on Phono MM w/ 5mv signal:
....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
....Again, we have complete gone through and
tested all functions of this unit. It sounds incredible....
PIONEER SA-9100 INTEGRATED STEREO AMPLIFIER
Cosmetic Cond. 8.5++
(C)
B.M.
SOLD 5/7/12
(Above text property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
NEW LISTING 5/1/19
(Click on above thumbnails to enlarge photos)
warranty
REFURBISHED /
FULLY
SERVICED & WARRANTED OLD-SCHOOL, 2-CHANNEL STEREO VINTAGE PIONEER STEREO INTEGRATED AMPLIFIER PIONEER SA-9100 / SA9100 #...540M Circa 1973-75
"WORLD
AC POWER"
™ MIJ
SOLD 9/25/19
SHIPPED
TO JEREMY IN CALIFORNIA
ü
Our
technician has completely gone through and 'Certified' this unit.
ü
Everything was cleaned inside and out including all switches, controls
and contacts. Cleaned and re-lubed all control shafts.
ü
Internal fuses checked for correct value / function and replaced where
necessary.
ü
Original issues were 'early clipping' on Right
channel 'Positive' peak (visible on Oscilloscope), Quite high DC at
speaker outputs, the AWR-032 power supply board that had completely
wrong Voltage values on one side and a 'popping' 'Tone Defeat' and
'Filter' Switch circuit boards (AWK-021 & AWS-040) (most rectified
following below service).
ü Replaced
20+ electrolytic capacitors as well as some transistors and resistors
ü
Solder joints
reflowed on probable high heat and
high stress points
ü New
8V lamps installed (#25-140)
ü Following 10-min warm-up Amplifier section had output bias
and DC offset adjusted to spec levels
ü All functions tested for perfect operation.
ü Following above procedures, unit was cosmetically detailed inside and
out.
ü All
inputs tested and both sides produce clean and even sine waves into
static 8 & 4 ohm loads! No power supply hum of any kind. It's dead
silent!
ü Following restoration procedures, the unit was run continuously at
medium volume, as all our amplifier / receivers are, into a load with
"Loudness" on and both Tone Controls at 10 for 48 hours.
(Technicians note, "this is a very 'tech friendly & serviceable'
amplifier design") Total tech time
25+ hours.
....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
, on our test
bench, the internal amplifiers of this particular Pioneer SA-9100,
Integrated Amplifier, #...1869, produced 24+
Volts per channel for 75+ Watts per channel at
8 Ω and 20+ Volts at 4 Ω for 100
Watts per channel via discrete, metal cased, TO-3 style outputs @
1khz. (2x Toshiba 2SA679 & 2x Toshiba 2SC1079 devices) (Idle
Mains AC current draw @
420 mA. Bias set to spec / 25mVDC DC offset brought from 80 & 105 mVDC to
<2mVDC following
power supply circuit board rebuild and driver board refurb Floor noise measured at L= 3mVAC and R=3mVAC) ____________________________ Powerful and Versatile, Pioneer 'Flagship' for 1973, the SA-9100
integrated amplifier. This is one of the most 'meticulous' built amps
out of Japan we have seen. Incredibly well designed and built. Great amp
for serious 2-channel, home-audio and "recording studio" use. "Real"
TO-3 outputs and HUGE
power supply!
Pioneer SA-9100 Features include: - Very well built output section and serious power supply ....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
- Triple AC outlets ( 1 switched, 2 un-switched) for a total capacity of
200 Watts
-
True "WORLD AC POWER"™
allows unit to be operated on 50 or 60 Hz AC and will select voltages
from 110v, 120v, 220v and 240 Volts AC input.
Pioneer SA-9100 Original Specs:
Design type: 2 Channels, Integrated Pre / Class AB operation Power Amplifier. "2-Stage Differential Amplifier, Direct Coupled, Pure Complementary OCL"
Rated Power output: 60 WPC min RMS @ 8 Ohms &
75 WPC min RMS @ 4 Ohms and < 0.1% THD
across 20-20kHz (75Wpc and 100Wpc at 8 & 4 Ohms w/ 1kHz)
Damping
Factor:
>70
@ 20-20kHz into
8Ω THD & IMD; 0.1% at full rated power into 8Ω
w/ 20-20kHz @ 0.04% @ 1W
Freq
Response:
7Hz-80kHz at full
rated power /
Power Bandwidth = 5-40kHz
S/N:
>95dB
for 'Power Amp' inputs
Input Sensitivity Power Amp:
500mV @ 50k Ohms
PRE-AMP SECTION SPECS:
Pre-Amp Output (full
output): 2V
@ 8 Ohms
S/N:
93dB for Tuner, Tape
and AUX inputs ....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Treble Control (sub); ±6dB
@ 20kHz
Subsonic Filter: 8Hz,
12 dB/Oct Low Filter:
30Hz, 12 dB/Oct
High Filter:
8kHz or 12kHz,
12 dB/Oct
Loudness Control: +10dB @
100Hz (-40dB Vol Level)
Phono
Section: Freq
Response: 30Hz-15kHz w/
RIAA Equalization of ±0.3dB
S/N: >80dB w/
5mV signal input ....(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Phono MM
Maximum Input Level: 250mV
RMS / 700mV P-P
Again, we have complete gone through and tested all functions of this
unit. The only thing we weren't able to completely
address, was the 'popping' on the 'Tone Defeat' and 'Filter Switches'.
We improved it to a tolerable level on the 'Filter Switches'. The 'Tone
Defeat' switch still pops, but as it's a switch that is typically 'set
and left', we did not want to invest the additional resources to
rectify, thus having to reflect it in higher final price. We felt that
was the best decision. Overall, the unit sounds incredible. This is
only the second of this model we have
had in 20+ years of being on the web! This is
an incredible amp and way better built and more versatile than most
we've seen marketed since it's 1973 introductory date. Internally
designed and built with very expensive, 5% & 1% tolerance resistors and
+/- 2% tolerance capacitors throughout! That was fairly 'unheard of' at
the time for most audio gear being generally reserved
for TOTL models. Our 'tech' first noticed that while doing it's
'workup' and made note on the worksheet, then we read about it in the
owners manual. Unit looks fabulous after detailing.
Original brushed aluminum face
and all original 'milled' aluminum knobs look near new.
Only 'barely mentionable' cosmetic issue are some small, 'moisture'
stains on the wood case top (see photos above). Real
Walnut Wood veneer case just had a fresh coat of Howards Feed-n-Wax and
looks great! Again, all functions test
perfectly after our service work and it sounds great!
Comes with an 'e-copy', PDF download of the
Pioneer SA-9100 owners / users / instruction manual and the service
manual if the purchaser desires. Measures
17" wide x 13.5" deep x 5.5" tall and weighs 34 lbs unpacked.
Comes with our 90 day limited warranty. PIONEER SA-9100 INTEGRATED STEREO AMPLIFIER
Cosmetic
Cond. 8.5+
SOLD 9/25/19
SHIPPED
TO JEREMY IN CALIFORNIA
(Cons. M.H.)
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
|
|
NEW ADDITION
10/20/07
(Click
on above thumbnails to enlarge photos)
warranty
PIONEER SA-9500
STEREO INTEGRATED AMPLIFIER
SOLD 11/24/07
|
PIONEER SA-9500
STEREO INTEGRATED AMPLIFIER
SOLD
|
NEW LISTING 7/13/12
(Click
on above thumbnails to enlarge photos)
warranty
VINTAGE
PIONEER STEREO INTEGRATED AMPLIFIER
PIONEER SA-9500-II
STEREO INTEGRATED AMP
#...6568S
Circa 1977-80
"WORLD
AC POWER"
™
MIJ
for sale
SOLD 10/17/12
SHIPPED TO NEW ZEALAND
Our
technician has completely gone through and 'Certified'
this unit.
Following ext / int visual inspection entire unit was cleaned inside
and out including all
contacts, switches and controls.
Switches and controls now clean sounding and performing solidly.
Power switch indicator replaced. Fresh heat-sink compound applied to all 4
output transistors. Output section bias / DC offset adjusted......(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
On our test bench the
internal amplifiers of this particular unit, #...6568S,
produced XX volts
per channel at 8 ohms for XX watts per channel and
XX volts at 4 ohms
for XX watts per channel via discrete outputs (2x
NEC 2SB618A & 2x 2SD588A)
Idle current draw .XA.
DC offset measured at <XmV on either side.
Very quiet with Floor noise measured at XX mVAC.
____________________________
(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Original Pioneer SA-9500-II Specifications:
Design
type: ......
Again,
as stated before,
our
technician has completely refurb'd this
Pioneer SA-9500-II Stereo Integrated amplifier,
cleaning and testing all and it gets our full
'Certification'.
Can
include a pdf 'e' copy of the Pioneer SA-9500-II
Owners / Users Manual. ...
.... Includes our 30 day limited warranty.
Pioneer SA-9500-II Stereo Integrated amplifier
Condition 8.5+
SOLD 10/17/12
SHIPPED TO NEW ZEALAND
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak Tree Enterprises, LLC. See 'Copyright
Information' page for details)
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PIONEER SPEC-1
STEREO PRE-AMPLIFIER
SOLD 9/15/03
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NEW LISTING
11/29/16
(Click on above thumbnails to enlarge photos)
warranty
VINTAGE PIONEER POWER AMPLIFIER PIONEER SPEC-4 POWER AMP
#...1420M
"WORLD
AC POWER"
Circa 1977-79 M.I.J.
SOLD 6/14/17
SHIPPED
TO GEORGIA
ü
Our
technician has completely gone through and 'Certified' this
unit.
ü
Everything was cleaned inside and out including all switches, controls and
contacts. Cleaned and re-lubed all control shafts.
ü
Internal fuses checked for correct value / function and replaced where
necessary.
ü
‘Multi-Voltage’ switch replaced and correctly set for North American
current.
ü
Solder joints reflowed on all possible high heat and stress points
ü
PC Molex connector pins burnished
ü
All output transistors removed and individually tested. Fresh heat sink
compound was used on re-installation, of course.
ü
Driver Boards had their 'primary' electrolytic
caps changed.
ü
Amplifier section had output bias and DC offset adjusted to spec levels
after 10 min warm-up.
ü
All
functions tested for perfect operation.
ü
Following above procedures, unit was cosmetically detailed inside and out.
ü
All inputs tested and both sides produce clean and even sine waves into
static 8 & 4 ohm loads! No power supply hum of any kind. It's
dead silent!
ü
Following restoration procedures, the unit was run continuously at medium
volume, as all our amplifier / receivers are, into a 4 Ohm load with
"Loudness" on and both Tone Controls at 10 for 48 hours.
On our test bench, each internal amplifier of
this particular unit, #...1420M, produced peak power of 38 Volts
per channel at 8 Ohms for xxWatts per channel and 28 Volts at
4 Ohms for xxWatts per channel via discrete, TO-3 / Metal
Cased output transistors (4x 2SB554 & 4x 2SD424).(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT? AC Idle
current at 750mA. DC offset adjusted to a SUPER LOW <1.0mVDC
L&R & floor -60dB.
____________________________
One of the most sought after among the ‘vintage’ power amps
of the audio world by Pioneer, the “SPEC-4” Power Amplifier.
Super build quality, with great features. Works great, Sounds
FABULOUS AND HUGE! Enough power to handle most any speaker you
'want to throw at it', and pretty much any size room you would
might have. Conversely, enough power and detail down low for
quieter listening situations. Unit does have a few small ‘dings
/ battle-scars’ on the right, front panel (see photos above).
Fortunately it does make up for it in high performance!
Pioneer SPEC-4 Features Include:
- Dual AC Power Supply featuring...(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT? ...AC current
Original Pioneer SPEC-4 Specifications:
Power output:
xxWpc
continuous RMS @ 8 Ohms & no more than xx% THD @ 20-20kHz
xxxWpc continuous RMS @ 8 Ohms & no more than
xx% THD @
20-20kHz
Power Bandwidth: xx0Hz(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
THD:
no more than 0x% THD @ 20-20kHz at full rated
power
IHF IMD:
xx% @ full rated
power & 8 Ohms & xx% @ 75Wpc
Freq Response of power amp section:xxHz to xx,000 Hz @ 1W / +0dB, -1dB
Signal / Noise Ratio:
xxdB w/ inputs shorted(text
archived)...
HEY, WHY ALL THE 'X'd' OUT /
OMITTED SPECS AND TEXT?
Damping Factor:
xx @
8 Ohms
Speaker Impedance:
xxxOhms w/ 4 Ohms minimum
Input Sensitivity @ RCA's for rated output:
xV @ 50kΩ
Max power consumption:
760
Watts
Again, we have done the previously stated refurbishment /
restoration work on this unit to insure its performance, and it
gets our full
'Certification'. All
functions tested for perfect operation. Other than the
previously mentioned ‘battle scars’ on the face plate
(see photos above), the unit is in good cosmetic
condition.
Performs and sounds great! This is a very ‘musical’ sounding amp
with lot’s of punch! Includes a pdf, 'e' copy, download of the
Pioneer SPEC-4 owners / users / instruction manual, the service
manual as well as a full line 1978-1979 Pioneer Full Line
Brochure (if the purchaser so desires).
Measures
19" wide x 7.5" tall x 17.5"
deep and weighs an impressive
54 lbs unpacked. Includes
our
standard 30 day limited warranty.
Cond. 9.5 Pioneer SPEC-4 Power Amplifier
(C) D.W.
SOLD 6/14/17
SHIPPED
TO GEORGIA
(Above text, in it's entirety, property of
www.oaktreevintage.com / Oak
Tree Enterprises, LLC. See 'Copyright
Information' page for details)
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OF CURRENTLY
AVAILABLE STEREO AMPS, PRE-AMPS AND POWER AMPS
CLICK HERE
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