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  • Only forum members can post to threads.  To become a member, register with your username/email address.   Registration requires Admin approval, usually a day.  Email to forum@northreadingeng.com for questions, recommendations or problems.

HIFI AMPLIFIERS

Discussions related to both tube and solid-state amplifiers, circuits, construction methods and measurements.  
Vacuum Tube Amplifier Repairs, Restorations and Builds
Discussions related to tube amplifiers and components.

Posts: 37
Topics: 8

Last post: Mar 13, 2024, 08:26 PM Re: Scott 222C by duder1982

Vintage McIntosh Amplifier Repairs, Restorations and Modifications
Discussions related to the first-generation solid-state amplifiers, repairs, modifications, restoration challenges and replacement parts.

Posts: 85
Topics: 12

Last post: Jan 18, 2025, 08:03 AM MAC1700 by nre

HIFI LOUDSPEAKERS

Discussions related to high fidelity loudspeakers including direct radiators, horn loaded, enclosure materials and construction, crossover networks and measurement techniques
Direct Radiator Systems
Discussions and topics related to direct radiators including open baffle, ported and sealed enclosures.  

Posts: 12
Topics: 5

Last post: Jan 07, 2025, 03:16 PM KEF R5 Meta by nre

Unofficial Klipsch Forum (the "UKF")
Discussions related to Klipsch loudspeaker systems including horn and direct radiator types, crossover networks, modifications and measurements.

Posts: 4
Topics: 2

Last post: Jan 18, 2025, 05:57 AM Re: Registration by nre

Horn Loaded Systems
Discussions and topics related to horn loaded systems including compression drivers, enclosures and measurement methods.

Posts: 19
Topics: 5

Last post: Aug 06, 2023, 05:39 PM Re: B&C DE120-8 Replacem... by DaveA

CROSSOVER NETWORKS

Topics related to network designs, components, modifications and measurements.
Passive Networks
Topics related to network modifications or measurements on vintage loudspeaker networks.

Posts: 14
Topics: 3

Last post: Jul 18, 2023, 03:03 PM Re: North Reading Engine... by nre_admin

TEST GEAR

Topics related to oscilloscopes, analyzers and other electrical and acoustic test equipment.

Posts: 17
Topics: 3

Last post: Feb 09, 2024, 09:47 PM Re: HP 333A Distortion A... by M-HZ

188 Posts in 38 Topics by 38 Members - Latest Member: Sprinter 1104
Latest Post: "MAC1700" (Jan 18, 2025, 08:03 AM)
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