Name: Pioneer cs-700
Brand: Pioneer

Japanese-made 3-way bookshelf speaker with hermetically sealed cabinet and multi-amplifier input support

Overview

The Pioneer CS-700 is a 3-way bookshelf speaker system manufactured in Japan by Pioneer Corporation. Note: It is unclear if 'Pioneer CS-700' and 'Pioneer CS-700G' are the same model; facts provided are explicitly for the 'CS-700G' variant. It features a 30 cm cone woofer, a 12 cm cone midrange, and a multi-cellar horn-type tweeter for high frequencies. The enclosure is constructed from thick particle board and is hermetically sealed, contributing to its airtight design. The speaker has a walnut oil finish and is covered with a brown fabric grille.

Specifications

Type	3-Way, 3-Speaker, Airtight Type, Bookshelf Type
Woofer	30 cm cone type
Midrange	12 cm cone type
Tweeter	Horn Type (multi-cellar horn)
Impedance	8 Ω
Frequency Response	35 Hz to 20 kHz
Sound Pressure Level	95dB/W
Max Input	60W
Crossover Frequencies	Normal: 500 Hz, 5 kHz; Multi-amp 2-way: 500 Hz to 1 kHz; Multi-amp 3-way: 500 Hz to 1 kHz, 4 kHz to 6 kHz
Dimensions	Width 380 × Height 660 × Depth 320 mm
Weight	16.9 kg

Design

The CS-700 uses FB cone diaphragms for both the woofer and midrange drivers and features a multi-cellar horn tweeter. The cabinet is made of thick particle board and is hermetically sealed. It includes a 3-step switching type level control and supports multi-amplifier operation via dedicated rear terminals, which are activated by a switch. The exterior has a walnut oil finish with a brown fabric grille.

Market

The original price was ¥33,000 per unit around 1973. As of 2026, a used pair was listed for RON 3,500 on Audioweb, and a single unit was auctioned on Yahoo Auctions starting at ¥1,500 with noted defects. A pre-owned unit was listed on eBay for $450.00. The model is described as "Rare Vintage" in current listings.