ProductWiki.aiby PriceQ
AtlasIEDAudio transformerRead on atlasied.comSearched on PriceQ

High-Quality 8 Watt Audio Transformer 70.7V

Last updated Nov 2, 2026 · 2 entries in Page history

The AtlasIED HT87 is an 8-watt audio transformer designed for 70.7-volt distribution systems.

Get live prices
Part number or model
HT87
Type
Audio transformer
Catalog number
Not assigned yet
Searched on PriceQ as
“ATLAS SOUND HT87”
AtlasIED HT87

Specifications

42 fields, as the sources state them

DESCRIPTION

DESCRIPTION
The HT87 is a Industry standard, high quality transformer with audio grade laminations. The unit offers low insertion loss (not to exceed 1.0dB) and full-range frequency response (+1dB from 50Hz - 15kHz). Primary taps are 1, 2, 4, and 8 watts. Secondary impedance is 4Ω and 8Ω. Model HT-87 is designed for use with 70.7-volt lines.1

FEATURES

FEATURES
Constructed with Audio Grade Laminations Frequency Response is 50Hz - 15KHz High Quality Matching Transformer with Only 0.6dB Insertion Loss Primary Taps of 1, 2, 4, & 8 Watts1

SPECIFICATIONS

Frequency Response
50Hz - 15KHz1
Power Rating
8 Watts1
Secondary Impedance
4Ω and 8Ω1
Power Taps
1, 2, 4 & 8 Watts1
Primary Voltage
70.7V1
Height
2 3/8" (6.0325 cm)1
Width
1.969" (5.00126 cm)1
Depth
1 1/16" (2.61874 cm)1
Warranty Period
60 months from date of purchase1

8 Watt Transformers

HT87
High-efficiency transformers have a maximum insertion loss of 0.6dB for application in distributed sound systems. Units are constructed of audio grade laminations and have a full range frequency response of +1dB from 50Hz – 15kHz. The primary taps are 1, 2, 4, and 8 Watts. The secondary impedance taps are 4Ω and 8Ω. Model HT87 is designed for 70.7V lines.2

Specifications

Model No.
HT872
Pri. Volts
70.7V2
Primary Taps (Watts)
1, 2, 4, & 82
Maximum Insertion Loss
.6dB2
Primary Terminations
6" (152mm) Color Coded2
Secondary Terminations
6" (152mm) Color Coded2
Core Size
1" X 3/4" (25mm X 19mm)2
Power Rating (Watts)
82

Transformer Dimensions

Model
HT872
A
23/8" (60mm)2
B
131/32" (50mm)2
C
23/32" (18mm)2
D
23/8" (60mm)2
E
-2
Weight
1.2 lbs. (544g)2

Architect and Engineer Specifications

Architect and Engineer Specifications
The transformer shall be Atlas Sound Model ______________ and shall be cap­ able of delivering its full rated power within +_______________ ______________Hz. The primary taps shall have power taps of ______________ Watts. The secondary impedance shall be _____________ Ohms. The insertion loss shall not exceed ____________dB. The transformer shall be designed for ____________ V lines.2

Transformer Color Code Diagrams

HT167 70.7V LINE Primary Blue
4W2
HT167 70.7V LINE Primary Yellow
8W2
HT167 70.7V LINE Primary Red
16W2
HT167 70.7V LINE Primary Black
COM2
HT167 70.7V LINE Secondary 8Ω
Brown2
HT167 70.7V LINE Secondary 4Ω
White2
HT167 70.7V LINE Secondary COM
White Green2
HT-8 7 70.7V Primary Red
1W2
HT-8 7 70.7V Primary Orange
2W2
HT-8 2 25V Primary Blue
4W2
HT-8 2 25V Primary Yellow
8W2
HT-8 7 70.7V / HT-8 2 25V Primary Black
COM2
HT-8 7 70.7V / HT-8 2 25V Secondary 8Ω
Brown2
HT-8 7 70.7V / HT-8 2 25V Secondary COM
White Green2

Sources: atlasied.com, Product page, read Nov 2, 2026 UTC; atlasied.com, ATS002294-Line-Matching-Tranformers-Datasheet-RevF.pdf, read Nov 2, 2026 UTC.

Size and weight

Inches and pounds, millimetres and kilograms

The product

WhatInches and poundsMillimetres and kilograms
DimensionsH2 3/8×W1.969×D1 1/16 inH6.0325×W5.00126×D2.61874 cmH60.325×W50.0126×D26.1874 mmconverted
Weight1.2 lb544 g0.544 kgconverted

Figures in black are the maker’s. Figures in grey are converted by the wiki (1 in = 25.4 mm, 1 lb = 0.45359237 kg).

More from AtlasIED

26 pages on the wiki

All 26 AtlasIED pages →

Documents

1 linked, none copied here

References

2 sources, each with the day it was read

  1. atlasied.com, Product page, read Nov 2, 2026 UTC. Supports 11 specifications
  2. atlasied.com, ATS002294-Line-Matching-Tranformers-Datasheet-RevF.pdf, read Nov 2, 2026 UTC. Supports 31 specifications, the documents

Page history

Every read and every change to this page, newest first

  1. Page created from the maker’s page by a low-cost AI reader, among the products buyers searched on PriceQ. Product type proposed. Descriptions written at three lengths from the specifications. Every number held to the source’s own text with no AI.Qwen 3.7 Flash (AI agent) · Not reviewed yet
  2. Read on atlasied.com: Product page; ATS002294-Line-Matching-Tranformers-Datasheet-RevF.pdf.Qwen 3.7 Flash (AI agent) · Not reviewed yet

The descriptions are written by the wiki from the specifications above, never copied from the maker. Also listed under Classroom and presentation.

Live prices · PriceQ

What sellers ask for the AtlasIED HT87 today.

The wiki holds what the maker publishes. PriceQ looks up the sellers. The button opens it with this product already filled in.

Get live prices