For sale is a used Hafler DH-112 pre preamplifier. Adding this unit to your DH-101 or DH-110 will give you the capability of using low or medium output moving coil phono cartridges. It was pulled from a working DH-110 preamp. I recapped it with high quality capacitors.Please note: This unit required you to install inside your Hafler preamp. Do not buy without the proper electronics capabilities. This unit was installed in a DH-110 preamp so the muting wires have been removed. If you are planning on installing in a DH-101 preamp, let me know and I will install the 2 wires you will need.Installation instructions are in the back of the DH-110 manual. If you need DH-101 instructions I can send them to you. All sales are final. You will not get a non functioning unit. Check my feedback. US sales only Please. Shipping to Hawaii and PR is extra.

David Hafler DH-110 Stereo Preamplifer with rackmount option for professional installation. This model features include a headphone amplifier, a muting circuit to prevent downstream thumps, a mono and tone control defeat switch, a rumble filter, as well as an external processing loop. The body is well constructed and protected from outer interference through full copper coating, similar to the Harman / Kardon designs of that time period. With two tape loops and two phono stages, the amplifier offers great connectivity. Preowned in good cosmetic and working condition. Fully tested and comes with 30-day guarantee. Shown signs of previous use such as light scratches, worn-out corners, dings, dis-colored spots...See photos for more information. This vintage unit has been fully tested by a technician. Due to the nature of electronics, Serial numbers have been photographed and recorded, and tamper proof labels are used to prevent tampering or component piracy. All dials, all inputs, buttons and outputs are cleaned and tested. Sound output is crisp and strong on both headphone and line output terminals. Use U.S. AC Power Only 110-120V / 60 Hz Hafler DH-110 first introduced in 1985 No return if due to buyer mishandling or damage because of lack of proper operational knowledge - and above all we are watching out for the part swappers if anti-tamper stickers on the unit removed or broke off. Only preamp unit for sale. No audio cable. No rack-ears. No other accessories included. Expedite shipping in double boxed with layers of foam protection. Fully insured. Flat-rate of $20 shipping to anywhere in the US to residential address only. No P.O Box. _______________ Specifications Frequency response: 20Hz to 20kHz Total 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 LED Dimensions: 17 x 3 x 8.5 inches Weight: 10lbs Year: 1985

This Hafler DH-110 stereo preamp is pure warm and clear sounding with the service complete on it with new caps and other parts. See inside unit pictures, With multiple audio inputs including AUX, Phono/Turntable, and Stereo L/R RCA, you can easily connect your favorite devices and enjoy crystal clear sound. The black color and analog features make it a stylish and classic choice. Made in the United States and manufactured between 1980-1989, this preamp has been recapped and serviced to ensure optimal performance. It has also been fully tested, so you can buy with confidence. Don't miss out on the chance to enhance your audio experience with this high-quality preamp.

Hafler Dh 110 Assembly Instructions. Condition is Used. Shipped with USPS Ground Advantage.

I am selling this for parts because I am an idiot, LOL. It was working fine except the pots were scratchy so I decided to disassemble it to clean it, I could not for the life of put it back together properly. It is obviously still in pieces as shown in pics and needs a good cleaning. Thanks and happy bidding.

I am selling this for parts because I am an idiot, LOL. It was working fine except the pots were scratchy so I decided to disassemble it to clean it, I could not for the life of put it back together properly. It is obviously still in pieces as shown in pics and needs a good cleaning. Thanks and happy bidding.

Hafler Dh 110 Assembly Instructions. Condition is Used. Shipped with USPS Ground Advantage.

Hafler Dh 110 Assembly Instructions. Condition is Used. Shipped with USPS Ground Advantage.

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

Hafler Dh 110 Assembly Instructions. Condition is Used. Shipped with USPS Ground Advantage.

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.

ConditionThis item has been professionally tested to ensure it is fully functional and in good working condition. It does not come in retail packaging. Item has very minor signs of use such as cosmetic marks and small scratches that will not affect its functionality. The item includes only the components listed under What you get. The manual is not included but can be downloaded online. Images are for illustration purposes, and the actual product may have slight cosmetic imperfections. DescriptionFor studio use, one of the assets of the P1000 is that it has no cooling fans, and its rackmounting case is only 1U high. The central portion that houses the circuitry and mains transformer is only 12 inches wide, and each of the rack ears is cleverly incorporated into a pair of large finned heatsinks that make up the remainder of the rack width. These provide plenty of air space for better air circulation, but its always sensible to leave at least one empty unit above and below any rackmounted device that is likely to generate a fair amount of heat. However, this is a small price to pay for total freedom from fan noise in the studio. The rear panel is clean and simple: each of the two channels has one of those clever dual?function Nuetrik Combo connectors for balanced or unbalanced use, using either XLR or quarter?inch TRS jacks, as well as a phono socket for unbalanced use. Useful features include a ground?lift switch so that you can fit the amp in a rack without worrying about hum, and a 230/115 Volt power selector switch. Item SpecificationsPower output: 50 watts per channel into 8? (stereo), 110 watts into 8? (mono)Frequency response: 20Hz to 20kHzTotal harmonic distortion: 0.2%Damping factor: 400Gain: 29 dBInput sensitivity: 0.714VSignal to noise ratio: 100dBDimensions: 483 x 213 x 44.5mmWeight: 5.45kgWhat you getHafler P1000 Trans Ana 110W Stereo Power AmplifierPower CableHistoryThe device came as part of the IT decommissioning project.

Broken David Hafler Model 110 Stereo PreamplifierVery noisy, scratchy signal. The monitor knob is completely loose and will easily fall off. There are melted rubber marks on the top side from where another device was set on top of it. The feet on the underside are probably replacements and are a little off-kilter. There are other various marks and scuffs on the exterior. May have other issues we are not aware of. Sold as-is, no returns, no refunds. OUR POLICIES:No returns or refunds on this as-is item. Unfortunately we do not offer international shipping. We cannot accept returns from outside the United States.Please double-check your shipping address during checkout! We cannot change it for you after you order.We can only ship to domestic addresses provided by eBay and verified by PayPal.Buy-It-Now listings require immediate payment. Auction-style listings require payment within 5 business days. A signature may be required for delivery of certain items.Most items are available for local pickup at our store in Clackamas, Oregon (in the Portland area)

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.

HAFLER MODEL 110STEREO PREAMPLIFIERTESTED/WORKINGMARKS ON UNIT (see pics)WORKS AS IT SHOULD

Up for your consideration are Hafler DH-101 stereo preamplifier and Hafler DH-220 stereo amplifier. Tested and working. In good condition. See photos.

Up for your consideration are Hafler DH-101 stereo preamplifier and Hafler DH-220 stereo amplifier. Tested and working. In good condition. See photos.

Up for your consideration are Hafler DH-101 stereo preamplifier and Hafler DH-220 stereo amplifier. Tested and working. In good condition. See photos.

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!