DescriptionUsed ConditionPlease check the status description. PolicyPaymentPlease pay within 5 days after auction is finished.About UsAll of our goods are genuine articles. Moreover, we sell honestly. Please contact me, if you have your question.International Buyers - Please Note:Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. Please check with your countrys customs office to determine what these additional costs will be prior to bidding/buying. These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.

Threshold Amp/Preamp Brochure...This is a reprint of a brochure from 1979! CAS 1 amplifer, 400a amp, 4000 amp, class A stuff! NS 10 preamp. The picture is of the actual item, Mint Condition! Very rare and hard to find! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Audio Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

Purchased in 2010 from Precision Audio and completely serviced by Threshold Corporation in 2019. I was having issues with the right channel and since it had never been serviced decided to send it to Threshold. I have purchased a Pass XA30.8, a close relative, and havent the room to properly store this 400a. Shortly after having it serviced, the right-channel -12db LED failed - this could be a cold solder joint. Its the third LED on the right side of the display. In addition, the lower left front-plate bolt has broken but has enough of a stem to sit in the hole. Other than those items, the amplifier is in excellent condition and sounds as it should, incredibly detailed. It was driving Magnaplanar 3.7i speakers with ease. Thanks for looking.

Threshold Amp/Preamp Brochure...This is a reprint of a brochure from 1979! CAS 1 amplifer, 400a amp, 4000 amp, class A stuff! NS 10 preamp. The picture is of the actual item, Mint Condition! Very rare and hard to find! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Audio Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

Threshold Amp/Preamp Brochure...This is a reprint of a brochure from 1979! CAS 1 amplifer, 400a amp, 4000 amp, class A stuff! NS 10 preamp. The picture is of the actual item, Mint Condition! Very rare and hard to find! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Audio Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

Threshold Amp/Preamp Brochure...This is a reprint of a brochure from 1979! CAS 1 amplifer, 400a amp, 4000 amp, class A stuff! NS 10 preamp. The picture is of the actual item, Mint Condition! Very rare and hard to find! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Audio Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.

Threshold Amp/Preamp Brochure...This is a reprint of a brochure from 1979! CAS 1 amplifer, 400a amp, 4000 amp, class A stuff! NS 10 preamp. The picture is of the actual item, Mint Condition! Very rare and hard to find! A piece of Audio History! I have THOUSANDS more Ads and Reviews on my Ebay Store. Email with ANY questions, THANKS! -Search for any brand you like on the left side in my Store Search bar. I have almost every popular Audio brand! -Each Page is 8.5 by 11 -Shipping is $3 in the USA and $6 ANYWHERE else, I ship WORLDWIDE! Each additional item is only $1 more to ship! -As always, your satisfaction is GUARANTEED at Audio Archives! If you are unhappy with any purchase, email and I will get you a resolution or a refund! -Email me with any questions, I put 10-20 new Ads and Brochures on my site EVERY DAY! THANK YOU! Powered by eBay Turbo Lister The free listing tool. List your items fast and easy and manage your active items.