This Hafler DH-110 stereo preamp is a perfect addition to any audiophile's collection. With its distinct black color and analog features, this unit is sure to provide high-quality sound. It has various audio inputs, including AUX, phono/turntable, and stereo RCA, and it comes with two channels. This preamp was manufactured between 1980-1989 in the United States and is a rare find for any collector. Although the shell may have a slight bend, it powers on perfectly and is ready to enhance your home audio experience. Sold as-is

This is the original assembly and operation manual for the Hafler DH-110 preamplifier. It provides comprehensive information on how to set up and use the device. The manual has writing on it and contains all the original pages. Please see all photos as they are also part of the description. The Hafler DH-110 preamplifier is a vintage piece of consumer electronics. It was manufactured to high standards and is a sought-after item for audiophiles. This manual is a must-have for anyone who owns or is planning to purchase the DH-110 preamplifier. It provides detailed instructions on how to operate the device, as well as information on its technical specifications.

Hafler DH-110 Stereo Preamplifier - Vintage Partially re-capped with high end capacitors, switches and potentiometers cleaned. A few commonly problematic components replaced. Tested.Most polarized electrolytic capacitors were out of spec and were replaced with Nichicon Audio grade quality replacements. The non-Nichicon bipolar capacitors were found to be out of spec as well and were replaced with high end Nichicon Muse capacitors. All of the nice Nichicon bipolar caps measured fine and were kept. The main filter caps were replaced. J112 FETs and LM393 comparator were replaced to eliminate any future issues that commonly occur. This preamp sounds great and will be great for any vintage equipment lover especially anyone into vinyl, as the phono preamps are great. Take a close look, at the pictures. The front isnt too bad at all, but the sides and top are definitely a bit scratched up. Will be well packed and insured. SpecificationsFrequency response: 20Hz to 20kHzTotal harmonic distortion: 0.001%Gain: 34dB (MM), 20dB (line)Input sensitivity: 12.5mV (MM), 50mV (line)Signal to noise ratio: 87dB (MM), 90dB (line)Channel separation: 52dB (line)Output: 3V (Pre out)Semiconductors: 30 x transistors, 3 x IC, 12 x diodes, 2 x LEDDimensions: 17 x 3 x 8.5 inchesWeight: 10lbs

hafler dh-110, used great working order, some paint/cosmetic issues.I have owned it since 2005 and always kept it inside a climate controlled home with no contact with weather, but it does seem to have some very light rust or other patina/paint damage. I used it for 3 years and then got a tube preamp and have only kept it around as a backup since. It only has three rubber feet. I thought about replacing all three with four new ones, but figured in case they are original and desired by the next owner I would let them make this call. Please feel free to reach out if you have any further questions.

One owner Hafler DH110 preamp. Hooked it up. Sounds real good, no scratchy controls.Has many features you dont get anymore in a preamp:stereo/mono 2 tape input/output2 phono input/output1 tuner in1 headphone jack4 convenience AC outlets1 external processor loop

One Hafler stereo preamp model DH-110 that works but not well enough to sell as 100% perfect working order - Selling as a non working parts unit - Please examine the photos and judge this Hafler for yourself - Fedex ground shipping signature required

Hafler preamp, flea market find. Note there are scuffs and other cosmetic issues, and some of the lettering has chipped away so its hard to read in a few places. 4 cover screws on the bottom edges are not original. Do not connect this to an amp without repairing it as it could damage your equipment. I got it to work for a while, but the treble control was glitchy even after cleaning. Seemed to work OK with the tone disabled. Then it quit working through the RCA line outputs and tripped the protection on my amp. It still worked through headphones, Phono 1/2, Tape 1/2, CD, and Tuner inputs all worked. Sold as is for parts or repair.Free shipping to the US lower 48.

Hafler DH-110, Stereo Preamp original operation manual. Filter feature operation button not workingOn Jul-12-23 at 21:57:01 PDT, seller added the following information: Update 20230712: On audio inspection, the line amplifier section for right channel is low in output. The phono preamp is balanced on tape output. So the issue is either in the line amp or one of the protection or muting circuits. I am an electrical engineer and will inspect further in the office tomorrow. On Jul-14-23 at 15:54:28 PDT, seller added the following information: Update: cleaned RCA style terminals on back. Cleaned ribbon cable connectors to main pcb. Tested to full rail output to the point of clipping to verify balance regulation. Sine wave, square wave, 20Hz to 40KHz all look balanced and clean now. Going to repeat the listening test soon to verify balance on music.On Jul-14-23 at 16:17:02 PDT, seller added the following information: Music is balanced and sounds great. So the update from 2 days ago no longer applies and it just needed the cleaning I did today. Balance, tone control, mono switch are working great.

This listing is for a Vintage Hafler DH-110 Stereo preamp. I am selling this AS IS for Parts repair because it needs some attention. I tested all of the inputs and they all work and sound good to my ears. I noticed when activating the tone controls by pressing the tone button that there is an intermittent noise in the right channel. Due to the age I would recommend having it checked out by a qualified technician. Please look closely at the photos. What you see is what you will receive.Sold AS IS. No Returns accepted. Shipping will be a flat $25 to the lower 48. Thanks for looking!

This DH-110A factory assembled unit (s/n 8208872) was bought new by the seller in the early 1980s, is cosmetically very good, and was fully functional when removed from the audio system in 2020 (then stored in a heated room in the shipping box). In 2019, knobs and push-buttons were professionally cleaned and de-oxidized to silence scratchiness, several capacitors were replaced and all RCA connectors were upgraded. The unit will ship in the original box with manual. Audio hobbyist groups on the internet note that this model of vintage electronics has a high incidence of scratchy sounding controls. The specific unit for sale here has quiet controls now after the 2019 servicing but scratchiness is likely to recur. Given its age, the unit is being sold “As-Is” so please ask questions before purchasing. The seller recently listened on the “Tuner” and “AUX” inputs with clear sound on both speakers and headphones and no apparent problems. All lights illuminate. Notably, the DH-110 includes two switchable phono inputs to allow a-b comparison of cartridges. A highly favorable 1982 review of the DH-110 by Julian Hirsch of Stereo Review magazine can be found online. Made in USA.