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You Can Build the PR-101 Stereo Preamplifier Kit

PR-101 Stereo Preamplifier front view

PR-101 Preamp

PR-101 Stereo Preamplifier Remote Control

Select source, change volume and balance, without leaving your favorite listening spot.

Now Taking Orders for a New Batch

We group orders for the PR-101 into batches to get the purchasing power we need to make the high end components available at an affordable price. The first batch sold out in February 2017. We're taking orders for a new batch now. If you want to order a PR-101, you'll put down a $200 deposit. If we collect enough deposits by June 1, 2017 we'll start delivering kits in the beginning of October, just in time for a nice indoor project when it's starting to get cool outside. If we don't collect enough deposits to start a new batch, we'll return your payment to you by Paypal.

Please note that the balance will be due before shipment.

Place a $200 deposit on a PR101, the version with the remote control.

Place a $200 deposit on a PR101NR, the version without the remote control.

What is it?

The PR-101 is a Stereo Preamplifier kit. You build it. It's a good looking preamp that sounds great! You can build it and listen to it today, but it has 3 option slots that let you extend its capabilities in the future. Here's a quick list of the features and benefits:

PR-101 Stereo Preamplifier Back View

PR-101 Preamp Back Panel (showing optional phono preamp).

Buy the PR101NR and Save $77

The PR101NR has No Remote control, and doesn't supply motor pots for volume and balance controls. That lets us pass a $77 savings on to you, so the preamp costs just $373 plus $26 shipping in 48 states. Yes, you'll have to get out of your favorite listening chair to adjust volume and balance, and change your input and output selections, but you'll save $77!

PR-101 Stereo Preamplifier Top View with Lid off

PR-101 completed. View with the lid removed.

Assembly Manuals

Here's the assembly manual for the PR101.

Here's the assembly manual for the PR101NR, which is the budget version of the PR101 as it doesn't include the remote control.

Specifications

Here are a few of the specifications that I've had time to post. I'll add more specs as time allows.

Distortion Tests (dB relative to fundamental, Zload=100K unless otherwise stated, tone controls off unless otherwise stated)
Frequency Input (vrms) Output (Vrms) 2nd harmonic 3rd harmonic 4th harmonic 5th harmonic
1 kHz 0.1 0.7 - < -120 < -120 < -120
1 kHz 1 1 -120 -132 -135 -
1 kHz 1 7 -113 -117 -135 -130
1 kHz 4 7 -109 -121 -137 -127
1 kHz (tone controls on, but flat) 4 7 -110 -120 -137 -126
1 kHz (tone off, 600 Ohm load) 1 2.5 -125 -112 -122 -118
100 Hz, 600 Ohm load 1 2.63 -122 -122 -131 -131
10 kHz 2 7 -96 * * *

Power Supply Capability

The PR101 accommodates option cards to add additional functions. The amount of stuff that can be added is limited by the available power from the power supply. A conservative specification for that power is:

Power Drain of the stock kit

About the Value

Why just $450 for the PR101 kit? I really don't know why I sell these kits at such a reasonable price. When you consider:

At $375 for the PR101NR kit (no remote control, no motor pots for volume and balance), you still get all the benefits of the PR101. You'll just have to get out of your favorite listening seat to adjust balance or volume, or select among the various sources and outputs.

How Do You Get One?

We have a limited number of PR101 and PR101NR preamp kits in stock today. Visit the Akitika Store now to order your kit.

What Isn't in the Stock Preamp?

The stock preamp doesn't have a built-in phono preamp. It didn't make sense to include it in the basic preamp, since many folks don't do vinyl these days. However, you can read about the Phono Preamp here

The stock preamp doesn't have a headphone amp. There's a front panel jack for it so that it's easy to add, but once again, it isn't part of the standard PR-101 that you'll be ordering. The headphone amp is on the "to be designed" list.

Gold Plated RCA Jack Option

PR-101 Gold plated RCA Input Jacks

You can add gold plated RCA jacks to your kit. I didn't make it part of the stock kit owing to the cost, but I've had a few people request it. It adds $20 to the cost. If you're about to order your PR-101, this is the time to add it to your order.

Testimonials

Lots of happy customers!

I've started to collect and post reviews and reflections by folks who have built the PR-101. I've posted a few testimonials here for you to look at.

If you've built a PR-101, please send me your thoughts. If you'd like me to share them, also send along your permission for me to to post them.

Bob Grossman's Review

Bob has a lot of crazy high end equipment. He reviews for AV showrooms, is a fine musician, and is principal librarian for the Philadelphia Orchestra. Here's his review of the kit.

Any Questions?

Submit a Question

Schematics

If you need to do detailed trouble-shooting these schematics might be helpful

Known Bugs

There are no known bugs at present.

The earliest units shipped had the 1p1 processors, where the volume and balance motor pots will not travel from end-to-end with one continuous push of the remote control buttons. The work around was to release and push the button again. This was remedied by release of the 1p2 processor, which has been shipped to all customers, and accompanies any new shipments.

Pictures While Building

Here's a gallery of pictures taken by one of my customers, Marc, while assembling his PR101. It also includes pictures taken while building the phono preamp (not included in the base price of the kit).

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