Pioneer Electronic Crossover SF-850 for DJ setup
date: label: Date
content: ca. 1970
name: label: Created by
content: Pioneer, established 1938
label: Owned by
content: Altel Sound Systems, American, founded 1973
notes: label: Description
content: A metal Pioneer Electronic Crossover, Model SF-850 machine. The front of the machine is metal, silver with black type, with two rows of knobs. The top row has seven knobs. Each knob has a name as well as other markings to indicate levels. The names read from left to right: [Low Level / Low Pass / Low Cut / Mid Level / High Cut / High Pass / High Level]. Below the far left, top row knob, there is a power outlet. The bottom row has a switch, as well as four additional knobs. Above and below the bottom row knobs there are lines that form a grid. Black type, centered underneath the knobs, reads: [Slope (dB/oct)]. The Pioneer logo, in red type located at the bottom right of the front of the machine and is followed in black type by the name and model number. The back of the crossover is metal, black with white type, and inputs, outputs, caution labels, ac outlets, electronic wires, and a model plate. The back top left contains left and right inputs. Towards the center, top, there is a three way output for the left and right. There are also two caution labels, white background with black type, located on the back of the machine. The bottom of the back contains a model plate that reads: [Pioneer / Model SF-850 / 120 Volts 5 Watts AC 60 Hz]. Next to the plate are the AC outlets, followed by a fuse button and an electronic cord. The bottom of the machine has another caution label on it.
place: label: Place purchased
content: Altel Sound Systems, Bridgeport, Fairfield County, Connecticut, United States, North and Central America
label: Place made
content: Japan, Asia
topic: label: Topic
content: African American
label: Topic
content: Hip-hop (Music)
setName: label: See more items in
content: National Museum of African American History and Culture Collection
label: Classification
content: Tools and Equipment
label: Classification
content: Musical Instruments
label: Exhibition
content: Power of Place
label: On View
content: NMAAHC (1400 Constitution Ave NW), National Mall Location, Community/Third Floor, 3 051
creditLine: label: Credit Line
content: Collection of the Smithsonian National Museum of African American History and Culture
dataSource: label: Data Source
content: National Museum of African American History and Culture
identifier: label: Object number
content: 2012.9.1
objectType: label: Type
content: audio equipment
objectRights: label: Restrictions & Rights
content: No Known Copyright Restrictions
label: Restrictions & Rights
content: Proper usage is the responsibility of the user.
physicalDescription: label: Medium
content: metal , plastic and wire
label: Dimensions
content: H x W x D: 5 1/2 × 19 × 17 in., 16 lb. (14 × 48.3 × 43.2 cm, 7.3 kg)