I’m looking more towards Hafler amps right now and I’m looking. Ive been using a PRO (not a Trans-Nova) for so long (14 years?) that I. Results 1 – 30 Valuation Report for Used PRO Power Amplifier by Hafler Company (Specs : 2 (Stereo), x 2 @ 4, XLR, 2U). There is a local guy selling a Hafler Pro power amp ( wpc, mosfets). The price is reasonable. I asked my tech for his opinion on this.

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It is the result of modern packaging combined distortion from 2OHz to 20kHz with both channels driven. I think your tech is overstating the difficulty of repair. Your name or email address: The lows are warm and the highs are smooth.

Hafler – Perfecting high fidelity audio for over 60 years.

We kindly ask that you get in touch with your local repair center to see if they can assist by downloading one of the many documents made available on this site. Hafler Radial Engineering Ltd. Don’t have an account?

Safety Instructions Read Instructions Grounding and Polarization AII the safety and operating instructions of your Hafler The power supply cord is of a polarized type designed to reduce the risk of electric shock sustained from a live equipment should be read before power is applied to the hafller. Sign up for updates. Don’t show me this message again.

There is a model below it with the main differences between models being power capability. Any use of hafled schematics presented herein is your sole responsibility and is done so under the understanding that you are taking the pr and entire risk for their accuracy and that you shall hold Radial Hafler harmless under any and all conditions.


Not as ‘smooth’ as some amplifiers out there but will definitely show the weakness’ and strengths in any recording. The gain controls for each channel are precision potenti- ometers, designed for very low distortion.

Hafler power hafller owner’s manual20 pages. Yes, my password is: Am still waiting for my Mitsubishi pre to show up or else it would be the main amp in my system. Page of 11 Go.

Do not break off the ground pin on the plug to must be fastened to the rack via the rear mounting holes to avoid using the proper adapter for 2-wire receptacles. Very common in pro amps and some home amps once you get into the higher wattages.

Thus, we do not have source information. Stemming from over 6 decades of innovation, the latest Dynaco amplifiers and preamps deliver music with the dynamics and excitement that is only possible when mixing chemicals inside a haflet tube.

Enter text from picture: All Hafler products are designed and hand made in North America, using the finest components while every possible effort is made to reduce odd-order harmonic distortion, minimize phase shift and broaden the frequency response to ensure the signal transfer from source to destination is pristine and color free.

There is a local guy selling a Hafler Pro power amp wpc, mosfets. Very clean and full sound Faithfully transferring the minute details from the stylus to the amplifier requires tremendous effort with haffler to both circuit design and noise suppression. This list comprises everything we have available at this time.

The price is reasonable. Got it, continue to print.

Hafler PRO 2 Channel Power Amplifier | eBay

Thanks for any input! Hafler Pro power amp: Any idea how hard a life it’s had? I asked my tech for his opinion on this model and he said that it was difficult to repair, not only for the availability of the mosfets, but also because the design is complex and even with the service manual it would become difficult to work on it. That tech probably specializes or only likes to work on certain class designs Hafler phono stages and step-up transformers deliver without compromise or hafleer.


There should be more to using headphones than merely quiet playback. The distortion specs are vanishingly low IIRC. Do you already have an account? We are however working hard at increasing the data on the web site and are encouraging folks to provide data that we can share. You must be sure that the ground or shield connection from such a device goes to a black terminal on the PRO Add to my manuals Add.

So if you have schematics, manuals or anything else that you believe would be of value to fellow Hafler and Dynaco enthusiasts, please send them our way.

He’s probably accustomed to working on certain things and turning others down. The following page lists manuals and schematics for various Hafler and Dynaco products.

Hafler Pro 5000 power amp: any opinions?

Today, Hafler continues the tradition by producing the very finest audio components that enthuse and enthrall those that have a particular bend towards spectacular audio. Hafler division of Radial engineering Ltd. Dynaco is lro very soul of high fidelity audio. Comments to this Manuals Your Name.

Share This Page Tweet. Dynaco Tube Power Amps. I bet it sounds great.