Pioneer CS-G301Q 12″ 3-Way Floor Speakers, Upgraded

$295.00

A 12-inch woofer, 4.5-inch midrange and 2.5-inch tweeter crossing at 3,500 and 7,000 Hz — the woofers and midranges replaced with better drivers by a previous owner, and the TN-358C crossovers serviced. 35 Hz to 20 kHz, 90 dB, 8 ohms. Designed in Tokyo and assembled in Markham, Ontario; original cloth grilles included. Good cosmetic condition.

1 in stock

Description

Pioneer CS-G301Q 12″ 3-Way Floor Speakers, Upgraded Drivers Assembled in Canada.

Grills included (just not shown in the pictures).

A handsome pair of late-1980s Pioneer CS-G301Q three-way floor-standing loudspeakers, Canadian-assembled, in good cosmetic condition with their warm simulated walnut woodgrain finish — and meaningfully upgraded under the hood with higher-quality replacement woofers and midrange drivers, plus serviced crossovers, for performance that genuinely surpasses the stock factory specification.

The CS-G301Q is the Canadian-market variant of Pioneer’s CS-G301 series — designed by Pioneer Electronic Corporation in Tokyo and assembled in Markham, Ontario by Pioneer Electronics of Canada. At a time when most major brands were already moving production entirely offshore, Pioneer’s Canadian assembly operation produced these substantial 12-inch three-way floorstanders for the domestic market, with the warm simulated walnut woodgrain vinyl finish that defined Pioneer’s hi-fi aesthetic of the era.

This particular pair has been upgraded by a previous owner with replacement woofers and midrange drivers that are noticeably heavier and built to a higher standard than the original Pioneer drivers — typically a sign of a meaningfully better motor structure and a more capable cone/surround assembly. The original tweeters have been retained, preserving the speaker’s familiar high-frequency character. The crossovers have also been serviced, refreshing the passive components and ensuring the network is operating to specification. The combined result is a speaker that, in our listening, plays with more bass authority, cleaner midrange, and better dynamic composure than the stock CS-G301Q ever managed when new — and at a price point that makes the upgrade work an exceptional value to the next owner.

The original 3,500 Hz and 7,000 Hz crossover points remain in place, preserving the intended driver hand-off, and the speakers retain their original removable cloth grilles (Pioneer part GRL-301P). The 30-pound cabinet, 12-inch bass driver, and 90 dB sensitivity make these an easy, room-filling match for vintage receivers and modern integrated amplifiers alike — comfortable from 20 watts up to the 150-watt maximum music power rating. The bass-reflex alignment delivers genuine reach down to 35 Hz, giving these speakers full-range capability without the need for a subwoofer in most rooms.

Specifications (per factory spec label):

Design: 3-way bass-reflex floor-standing loudspeaker

Drivers: 1 x 12 in. (30 cm) cone woofer (upgraded), 1 x 4.5 in. (12 cm) cone midrange (upgraded), 1 x 2.5 in. (6.6 cm) cone tweeter (original Pioneer)

Crossover frequencies: 3,500 Hz and 7,000 Hz (TN-358C network, serviced)

Frequency response: 35 Hz – 20,000 Hz

Sensitivity: 90 dB (1 W / 1 m)

Nominal impedance: 8 ohms

Maximum music power: 150 W

Grille: Original removable cloth grille (Pioneer GRL-301P), included

Finish: Simulated walnut woodgrain vinyl

Designed by: Pioneer Electronic Corporation, Tokyo, Japan

Assembled in: Canada (Pioneer Electronics of Canada, Markham, Ontario)

Dimensions (W x H x D): 15 x 26.6 x 12.4 inches (380 x 675 x 315 mm)
Weight: 30 lbs 5 oz (13.75 kg) per speaker

A handsome, full-range Canadian-assembled vintage Pioneer floorstander with a thoughtful and substantial driver upgrade — a genuinely better-than-stock performer with serviced crossovers, ready for many more years of musical service in a vintage stereo, second system, or rec-room rig.

Grills included (just not shown in the pictures).

Backed by Radique Audio’s Bumper-to-Bumper Warranty and our Perpetual Trade-Back Program, you can purchase with confidence — Canadian-assembled, sympathetically upgraded, and ready to play.

$295.00
Additional information
Weight64 lbs
Dimensions31 × 19 × 30.6 in
About brand
Pioneer at Radique
We service Pioneer, too. Bring us your own Pioneer receivers, amplifiers, tuners, turntables, cassette decks and CD players for repair, servicing or restoration (not reel-to-reel decks), with a 90-day warranty on the work. See our Audio Service page

Pioneer began in Tokyo in January 1938, when Nozomu Matsumoto set up shop around the A-8 speaker he had built the year before. By the late 1970s its SX receivers were at the heart of the hi-fi power race. We carry Pioneer stereo receivers and AV receivers, CD players, cassette decks, tuners and equalizers. We've had more than 240 Pioneer listings so far, covering 140 different models. Every used Pioneer here is inspected, tested and serviced as required, then photographed in-house and covered by our Bumper-to-Bumper Warranty and Perpetual Trade-Back Program. Don't see the model you want? Tell us on First Dibs and we'll email you when one arrives.

Pioneer is one of our two top-selling brands of vintage amps and receivers, along with Marantz. Our five best-selling Pioneer models so far: the SX-650, SX-750, SX-580, SX-780 and SX-680, all vintage stereo receivers from the 1976 and 1978 SX families. We also offer our custom cherry cabinets for these vintage Pioneers, hand-made from all-natural Ottawa Valley cherry, and we've upgraded dozens of Pioneers with them so far.

The Pioneer story, 1938 to today

Nozomu Matsumoto developed the A-8 speaker in 1937, and in January 1938 he set up Fukuin Shokai Denki Seisakusho in Tokyo. "Pioneer" was first the name of that speaker. Some histories give 1936 in Osaka as the start, but Pioneer dates itself to January 1938 in Tokyo. The company was incorporated in 1947 and renamed Pioneer Electronic Corporation in 1961.

Stereo and the US. In 1962 Pioneer introduced the PSC-5A, which it calls the first stereo with separate speaker cabinets, and its first PL turntables. Pioneer Electronics U.S.A. was founded in New York in 1966.

The power race. After a 1974 US Federal Trade Commission rule tightened how amplifier power was rated, receiver makers competed on watts. Pioneer's SX-1250 of 1976 was rated at 160 watts per channel, and the SX-1980 of 1978 to 1980 at 270.

CD and Elite. The P-D1 of 1982 was Pioneer's first CD player, and Elite-branded components were on sale by 1985.

Today. Pioneer sold its home audio business to Onkyo in 2015, keeping its car and DJ businesses, and Pioneer-branded home theatre gear was later made under licence. In December 2025 CarUX, part of Taiwan's Innolux, completed its purchase of Pioneer Corporation, which now focuses on in-car products.

Which Pioneer is which?

Early-1970s SX receivers: models such as the SX-424 to SX-828, rated at about 15 to 50 watts per channel.

The 1976 "x50" SX receivers: from the SX-450 at 15 watts per channel up to the SX-1250 at 160. Our best-selling SX-650 and SX-750 come from this family.

The 1978 "x80" SX receivers: including the SX-580, SX-680 and SX-780 we sell most, up to the SX-1980 flagship with quartz-lock tuning, which weighs more than 35 kg.

Spec and Exclusive separates: higher-end amplifiers such as the Spec-1 preamplifier (1976 to 1980) and the Exclusive C3/M3 pair (1974).

Elite: Pioneer's upper line from the mid-1980s, for example the PD-9010X CD player.

PL turntables, CT cassette decks and CD players: PL turntables from 1962, such as the PL-12 and the linear-tracking PL-L1; CT decks such as the three-head CT-F1000; and CD players from the 1982 P-D1 to magazine-loading changers such as the PD-M6.

Buying used Pioneer: what to check

Controls and switches. Crackle when you turn a control or work a switch usually means dirt, and restorers clean every pot and switch.

Capacitors. Electrolytic capacitors in 1970s receivers are often past their best, and full restorations replace them.

Big SX models. Owners and restorers report heat stress on the power-supply board of large receivers such as the SX-1250. Ask what has been done.

Relay, lamps and bias. The protection relay is a common replacement, dial lamps burn out and are often converted to LED, and restorers set the bias and DC offset.

Cassette decks. Check the heads, fast-forward and rewind, Dolby and every button. Belts age even when the deck looks perfect.

Everything we list is inspected, tested and serviced as required here, and comes with our warranty.