Denon PM 970 that I didnt manage to fix please find below list of parts that I have replaced (from the internal board PUX027) and are working fine, that might help next person trying to fix it as well as service manual: Resistors (Ohms) R30 (51) , R20 (220), R22 (220), R2 (274), R4 (82), R6 (2.2k), R8 (2.2k), R14 (330), R46 (220), R62 (100), R68 (39), R70 (39), R86 (100), R88 (100), R84 (100), R82 (100), R190 (100), R58 (120), R60 (120), R74(39), R72(39), R92(100), R90(100), R78(2x1), R70(2x1), R80(2x1), R48(220), R3(100), R4(100), Transistors TR21-TR22 (2SA1020), TR19-TR20(2SC2655), TR25-TR26-TR27-TR28(C2588A), TR23-TR24(C2238),TR31-TR32-TR33-TR34(A1108A), TR29-TR30(A968) You have to continue to get it done and I don't think I have time for it soon.
This was the top of the line Denon amp during its golden era of hifi. A really ingenious bias system that tracks the input signal and maintains a class A-like operation. Don't get this confused with the later optical class A bias systems that Denon used in later years; not the same. The sound is open, resolving, deep, and dynamic. A top integrated amp for sure! Hard to find in the U.S or EU.
I'm downsizing my hi-fi vintage collection due my health conditions collected since 30 years ago and selling away other my stuff. It's listed on several platforms, contact me to find out present availability of each item. Some of my item are still in repair or restoration process, eventually all be sold in a good working and in a good cosmetic condition.
The amplifier with some marks of wear over the years. Have been professionally serviced, tested, cleaned, and replaced components only that were out of spec. Most parts are still original.
You might need a step-down transformer to run it in the UK or Europe. This is not included in the purchase, but I can guide you in purchasing it or supply it for an extra fee. Also, It can be converted for 240V internally for about 150-170£ extra fee (depending on amp power) if you request it.
Disclaimer: Although I take every precaution in managing my hi-fi and hi-end products, there is a possibility that small scratches may occur during display and storage. I try to check and describe them as much as possible, but I cannot guarantee that every single part is genuine products. Additionally, what is in the image is all that is in the product. Please be sure to check the image as the current state of the accessories and exterior condition will take precedence. I try to describe the condition of the product, such as scratches, sunburn, and dirt, as much as possible, but I may overlook them. It is not realistic to perfectly describe all of the product conditions. Therefore, please be sure to check the condition of the product in an enlarged image. Scratches, sunburn, dirt, etc. that can be seen in an enlarged image are not a reason for return. I do not accept returns due to minor scratches, sunburn, dirt, etc. that are difficult to see even in an enlarged image. What is in the image is all that is in the product. Scratches, dirt, defective screws, peeling of glue, etc. on the inside and bottom that are not photographed. Deterioration due to aging. These parts that do not affect the function of the audio equipment are not covered by the warranty.
READ CAREFULLY A FOLLOWING DISCLAIMER:
Keep in mind the amplifier will be tested again prior shipping and items damaged during transportation has no insurance or warranty, no return will be accepted. DON'T TRY TO PLAY THE "GAME" with statements like damaged by curries or not as described. Get learn about the item you buy, ask any questions about it and concider the postal 3th part insurance for safe delivery if you want to avoid troubles.
Posting insurance can be offered for additional fees because a price is set as a minimum and for the posting insurance speak to me. Thanks for your understanding and collaboration. Yours sincerely