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Rogers A75 Series 2

Integrated Stereo Amplifier

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Rogers A75 Series 2

Description

The A75 Series 2 is a British amplifier of proven design and construction offering the class of robustness and audible performance which has made Rogers products sought after by the discriminating music lover.

Using a totally unique class AB output configuration in conjunction with the latest High Gain Linear Darlington Output Devices to provide perfect fatigue free performance coupled with control facilities to meet the requirements of the modern domestic situation.

The main characteristic which has distinguished Rogers amplifiers from impressively specified competitors' products is the superb sound reproduction.

The Rogers A75 Series 2 possesses audible performance which distinguishes it from virtually all other amplifiers and has led to the Rogers reputation amongst true music lovers.

Specifications

Power output: 45 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 50kHz

Total harmonic distortion: 0.08%

Damping factor: 30

Input sensitivity: 2.7mV (MM), 63mV (ceramic), 180mV (line)

Signal to noise ratio: 70dB (MM), 80dB (line)

Channel separation: 52dB (MM)

Output: 180mV (line)

Semiconductors: 14 x small signal transistors, 4 x power transistors, 4 x output devices

Dimensions: 362 x 286 x 117mm

Weight: 7kg

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Comments

re: A75 Series 2

I am getting a popping sound (DC) from one channel. Would like to get it repaired but having zero success trying to track down a service manual or schematic. Would greatly appreciate any help or advice. Thanks

re: A75 Series 2

Upon switch On, I was getting some strange rustling noise through the speakers for 10 seconds or so.
I traced this to the Speaker selector control, due to the contacts aging over time. It’s a odd type of rotary switch, so no direct replacement seems available.
As I only use one set of speakers I just hard wired the selector control so the “A” speakers are now always on. Result! Great amp, wonderful quality.

re: A75 Series 2

Sadly the fault returned. It's the Volume control, spray lot's of cleaner in there, hard to get a replacement with the switch on the back.

re: A75 Series 2

Worth giving Deoxit switch cleaner a go. If the swotch is just oxidised but still function mechanically then a fix is likely.
I use Deoxit products on all service work i do and it works extremely well.....if you follow the instructions to the letter.

Good luck,
Al.

re: A75 Series 2

I have the same problem with my A75 Series 2 so thanks for the lead. Amazing that it is still going after nearly 40 years (I've had it since new).

re: A75 Series 2

Had this amp since new and its still sounds fantastic with Spendor BC1s and Logic tempo table. Had to have new output capacitors fitted for £50 by local repair guy but well worth it. Smooth powerful valvey sound.

re: A75 Series 2

This amp doesn't use output caps, it's Transformer coupled, unusual for a SS amp. I guess you meant Power caps.

This website is not affiliated with or sponsored by Rogers. To purchase A75 Series 2 spares or accessories, please contact the company via their website or visit an authorised retailer.