I pulled out the Ace Bass B2-50 for someone today and connected it to what I had lying around.   A pair of budget Audex speakers (circa 1960) and a Pioneer SX-1250 receiver.  I turned out be quite a good demo, mainly because the small 6-8" woofers in the 2-way Audex speakers are quite bass shy, giving the superb B2-50 lots of room to shine.  Of course, the SX-1250 was an excellent performer (as always) with 160 watts on tap into these 8 ohm speakers.  I've never seen a receiver pull in so many FM stations in stereo without an antenna connected.

Some details on the AudioPro Ace Bass.  Its a powered subwoofer produced by 3dGruppen of Sweden and utilizes two 6.5" drivers made by Philips capable of doing 20Hz at realistic listening levels.  It does great for audio, where many modern subwoofers fall flat.

A few more shots after the break.
[...]

Pioneer PL-115D Turntable

The Pioneer PL-115D is a great turntable dating from the mid to late 1970's.  It features a substantial plinth that keeps vibration and resonance to a minimum.  This table starts automatically when the arm is moved over to the record.  Cueing is manual, but the arm is automatically returned when a record is finished.  There's adjustment for tracking weight via a counterweight, and and a small knob to the right to set the anti-skating adjustment.

A cartridge can be mounted via a standard 1/2" mount headshell.

[...]

All Photo Credits Skibjr on eBay

The SX-5590 is very similar to the Pioneer SX-1250, but it's different in one very obvious way - it's black face vs. the silver face of the SX-1250 and most other Pioneer receivers from the 1970's.   The SX-5590 was manufactured for 8 months in 1976,  and less than 2,500 of these "special edition" receivers were built during this period.  Furthermore, they were available only to U.S. military personnel stationed overseas through  European post exchanges (a.k.a. "PX's").

In this post, we feature an another amazing, all out restoration of this wonderful receiver by eBay member Skibjr.  (Check out his restoration of a Pioneer SX-1280 here).  Skibjr  sells on eBay. Check out his latest listings here.

[...]

Pioneer SX-1280 Receiver Full Rebuild / Restoration

The SX-1280 was a follow up to the original 'monster' Pioneer SX-1250 receiver.   Rated at 185 watts per channel. From 1978. Features, tone controls, on/off two separate bass and treble controls, filters, mic input, two tape in/outputs one aux input and two phono inputs, phono two selector is also the mic selector. Tape duplicator switch, phono selector for the right stylus and the best response, from your needle, Adaptor switch to add a equalizer etc.

In this post, we feature an amazing, all out restoration of this wonderful receiver by eBay member Skibjr.  Check out the full restoration by Skibjr on eBay. Check out his latest listings here.

Specs:

Power Output: 185 watts per channel RMS into 8 ohms.
Harmonic Distortion: Less than 0.03%
Intermodulation Distortion: Less than 0.01%

FM Sensitivity: 1.7uV
FM Capture Ratio: 1.00
FM Harmonic Distortion Mono: <0.10%
FM Harmonic Distortion Stereo: <0.15%

Dimensions: 22.00 x 18.25 x 7.50
Weight: 63.25 lbs

[...]

Pioneer SX-626 Receiver

Manufactured from 1971-1973

Specs:

20 Watts Per Channel RMS (20 Hz to 20 KHz, both channels driven, 1% THD)
Damping Factor @ Load Impedance    40 at 8 ohms
Output Impedance(s)    4 to 16 ohms

[...]

Pioneer SR-101 Tube Reverb Amplifier

The Pioneer SR-101 is a valve driven springs reverb unit.  It is a dual tank, tube driven unit utilizing a single 12AX7 per channel (Matsushita tubes).   Pioneer produced the SR-101 back in late '60s to early '70.
It is very clean, quiet and can handle signals from a variety of sources; instrument up to line level.

Dimensions are  12.5" long, 8.5" wide and 4.5" tall. The power cord is about 6' long and has a 2 prong plug.

Tubes:  12AX7 (2)  ECL82 (2) 6X4 (1)

It weighs about 5lbs.

[...]

This one is for sale. Get in touch via the Contact Us page for more info.

Introduced in 1974 and the RT-1011L was a  three head/four track deck that could take the larger ten-inch reels as well as standard 7" reels.  It was equipped with three motors and the reels were belt driven.  All Pioneer's open reel decks manufactured between 1973 and 1975 employed synchronous hysteresis motors.  The frequency response was 30-20kHz. .  The RT-1011 remained in production from 1974 to 1978.

Type: 4-track, 2-channel recording and playback.

Heads 3 Total:

Motors 3 Total:

Maximum Reel Size: 10.5 in (26cm)

Tape Speed - 2 Speeds:

19cm/s (7-1/2ips)

9.5cm/s (3-3/4ips) +/-0.5%

[...]

Pioneer SX-828 Receiver (1972-1973)

A classic silver faced receiver from Pioneer.   Featuring solid wood end caps, a real wood veneered case, this top of the '20' series receiver from Pioneer can really belt out the tunes.

This receiver is for sale, located in the San Francisco Bay Area of California.    Price:  $200  Please contact us for details.

50 watts RMS per channel into 8 ohms

Harmonic Distortion: Less than 0.5%
Dimensions: 19 x 15 x 6
Weight: 32.00 lbscl

[...]

Pioneer SX-850 Receiver

(1976-1977, MSRP $500)

The SX-850 marked the introduction of the silver on silver design that typified Pioneer's receivers in the late 1970s. It was introduced in 1976 and built through 1977. It was a popular model, having considerable power at 65 watts per channel RMS and a pricetag of $500.00, list. The SX-850 weighed a considerable 42 pounds--it was built to last and perform for years.

[...]

Pioneer SA-6500 Integrated Amplifier and TX-6500 tuner (1977-1978)

The SA-6500 was one of Pioneer's mid-range integrated amps in the mid-1970s. The SA-6500 was rated at 25 watts per channel.  Interestingly, this amp had the same low intermodulation distortion and total harmonic distortion specs as the top-of-the-line SPEC-2 amplifier, 0.1 %. So, while the buyer of this amp couldn't afford a SPEC-2, he could boast it had the same specs!

The TX-6500 II tuner was also introduced in 1977 and was a step up from the TX-5500 II in terms of features and performance. It featured better stereo separation and signal to noise ratio, and the extra circuitry components resulted in a weight of 12.50 pounds. It had a list price of $200.00. This tuner was a good seller for Pioneer and it was offered again for 1978.

More pictures after the break.

[...]