T+A HiFi - PA 3100 HV Integrated Amplifier

**Please click here to check out our newly launched SkyFi Audio website with additional items for sale**

This is a brand new T+A HiFi - PA 3100 HV Integrated Amplifier.

Complete as it left the factory in Germany.

Comes with a full factory warranty as SkyFi is an authorized dealer, and free installation up to 50 miles from 07452.

More from T+A:

The Integrated Amplifier
The PA 3100 HV is a further development of the PA 3000 HV, and most of its sub-assemblies are identical. The immediately obvious difference is the pair of VU meters in the front panel, which display the power generated per channel in logarithmic form in Watts into 4 Ohms. A revision of the pre-amplifier section (D.C. coupling) has brought an additional improvement in sound quality.

A further development is the redesigned analogue mains section and voltage power supply, which is similar to that of the A 3000 HV. This makes it possible to connect the supplementary PS 3000 HV mains section in order to gain a further increase in stability and performance of the power supply system as a whole. The additional unit provides an extra 1800 Watt of supply power, enabling the system to control even the most difficult loudspeakers without effort, so that they can unfold the best possible sound quality.

As an option the PA 3000 HV and PA 3100 HV can also be fitted with High-End phono pre-amplifier modules which feature different circuit topologies to suit MM or MC systems. It is also possible to install the analogue signal processor module which has been developed for the P 3000 HV to provide channel-separate tone and loudness functions.

The all-metal F3001 infra-red remote control handset is supplied as standard.

Technology
As with the P 3000 HV, the circuit topology is based on a differential cascode amplifier with individually selected audio J-FET transistors, and stages of completely discrete construction without op-amps (operational amplifiers).

Virtually no overall negative feedback is required due to this circuit arrangement and the quality of the components employed. The high operating voltage of HV technology is the key to excellent linearity combined with extremely wide dynamic range: signals up to 60 Vss can be processed without distortion. 

In the HV series the signal switching and adjusting functions are carried out by encapsulated gas-tight gold-contact relays, which are totally immune to contact problems due to corrosion, dust, etc., and do not suffer from ageing effects even after many years of operation. The pre-amplifier even employs bi-stable relays, which require no permanent coil current, and this in turn eliminates any adverse inductive effect on the audio signals.

The direct integration of the relays into the circuit minimises the signal paths, and connecting cables – as required for conventional volume potentiometers – are no longer necessary. The volume control is assembled from discrete precision resistors and gold-contact relays. The result is totally precise channel matching, devoid of distortion and hiss.

The front panel is no less than 40 mm thick to provide outstanding shielding, and is machined from solid. All the electronic control circuitry is housed in a deeply inset compartment in this panel, which also bears on its front face the bright, dimmable glass VFD screen with its zero-wear sensor buttons.

The rotary source select and volume control knobs take the form of precision incremental encoders running in needle roller bearings, which give a uniquely satisfying sensation when operated.

Specifications

Pre-amplifier stage

Frequency response + 0 / – 3 dB 
0,5 Hz –300 kHz

Signal / noise ratio 
105 / 110 dB

Total harmonic distortion 
< 0,001%

Intermodulation 
< 0,001 %

Channel separation 
> 90 dB

Nominal input sensitivity High level (RCA) 
7 x 250 mVeff ... 6 Veff / 20 kOhms

Nominal input sensitivity Balanced (XLR) 
4 x 500 mVeff ... 12 Veff / 5 kOhms

Outputs

Headphones 
50 Ohms

1 x Recorder 
250 mVeff / 100 Ohms

PRE out RCA 
nom 1 Veff, max 9,5 Veff / 50 Ohms

PRE out XLR 
nom 1,45 Veff, max 19,6 Veff / 50 Ohms

Output stage

RMS output per channel into 8 Ohms 
300 Watts

RMS output per channel into 4 Ohms 
500 Watts

Peak output into 8 Ohms 
380 Watts

Peak output into 4 Ohms 
700 Watts

Power bandwith 
1 Hz – 150 kHz

Frequency response + 0 / – 3 dB 
0,5 Hz – 180 kHz

Slew rate 
60 V/µs

Damping factor 
> 65

Signal / noise ratio 
> 115 dB

Total harmonic distortion 
< 0,03 %

Reservoir capacity 
120000 µF

Mains 
110 V/60 Hz or 220/240 V/50 Hz

Standby 
< 0,5 W

Remote control 
F 3001

Features 
Trigger input +5 ... 20V for external switching-on
Input 4 can be configured in surround mode
(Surround pass-through)
connectivity for additional PS 3000 HV
LAN connector for home-automation systems

Optional Accessories 
PS 3000 HV Power Supply | PH HV MM oder MC phono module | APM signal processor module | Power Three HD (Carbon) | Power Bar | Audio Quad (Carbon) | Speaker Hex (Carbon) HV-Individual finish (Individual colours on request)| IP control

Dimensions (H x W x D) 
7" x 18.11" x 18.11"
(17 x 46 x 46 cm)

Weight 
84 lbs 
(38 kg)

Finishes 
Case: silver laquer 47 or titanium laquer 64
Heat sink: black 42

The SkyFi Testing Process for Integrated Amplifiers:

We start with a visual inspection of all internal components to make sure there are no signs of stress or aging. Capacitors are checked for telltale sings of bulging or leaking, resistors are checked for signs of overheating or cracking, and transistors are checked for signs of stress or damage. 

We then power up the unit carefully and run a simple 1k sine wave while monitoring the output on an oscilloscope for signs of distortion or noise. Finally, we run the amplifier to its full rated power into the appropriate resistive load provided by our Sencore amplifier tester. If there is an issue, it will usually be noticeable at this point. If everything reads clean, we will often test for THD (Total Harmonic Distortion) measured by our Keithley distortion meter, and compare it against the original manufacturers specifications. The amplifier then remains powered on to "burn in" on our test bench for a few hours to make sure there are no heat related issues. If there are balanced inputs available they will be also be tested.

Final testing involves pushing actual music thorough the amplifier. We've learned over time that some issues are only noticeable to a trained ear while listening to familiar source material. Our test bench has reference vintage KEF speakers that we're very familiar with which quickly reveal any discrepancies. Some amplifiers will then move into our listening room where they are tested with our in-house reference speakers of choice.

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PURCHASING FROM SKYFI:

This item will be professionally packaged and insured for safe transit to your home unless you opt for local pickup from our shop. Please note that all local pickup items are only wrapped with industrial strength clear cling stretch wrap if the original manufacturer packaging is unavailable.

Local pickup is available in Glen Rock, NJ, just a half hour drive from Midtown Manhattan, with convenient parking near our building.

And if you’re looking to ship to Canada, simply follow this link to view and purchase this item. We ship to Canada via UPS Worldwide Expedited service and you’re responsible for any applicable import duties and taxes.

If we don’t have the original manufacture’s packaging, we use heavy duty double-ply corrugated boxes with custom made to your item Instapak expanding foam custom inserts. In many cases this has proven to be better than the original packaging! We also use high quality fiber reinforced tape to seal our packages. Lightweight items will be bubble wrapped and shipped in a high-quality box. 

Click here for specifics on our specialized packing process that separates us from the rest.

NJ Residents or anyone picking up without a resale certificate will need to pay NJ Sales Tax.

Thanks for looking and be sure to call us at 201-879-0000 with any questions. 

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WHO WE ARE:

SkyFi Audio is a small startup business specializing in the purchase, reconditioning, and reselling of select high-end audio equipment. We only buy equipment the we admire and are passionate about. No mid-fi, no gimmicks, no junk.

Each piece of equipment is cosmetically restored and fully tested in our well-equipped lab by an engineer with 30+ years of experience in the HiFi world. If it does not meet or exceed the original manufactures specifications, it will not be sold. We are very selective about the equipment we purchase, focusing on mostly analog, high-build quality, American, and European built units.

Through our sister company which is an authorized dealer for McIntosh, Audio Research, Sonus Faber, ClearAudio, Pro-Ject Audio Systems, and Sony ES, we have access to OEM parts, service, and support. If you’re local and looking for new equipment from the above-mentioned manufacturers, please drop us a line as we can arrange both sales and professional installation in the tri-state area.

PURCHASING GUIDELINES:

We do not accept or review any offers that do not go through the official Audiogon system. We have too many items for sale and it’s nearly impossible to keep track of offers outside of the official system. Please don’t message, email, or text any offers. 

PAYMENTS:

We prefer working through PayPal which allows you to use a credit card, bank transfer, and their special financing to spread out payments over six months. We do not charge extra for any PayPal fees if you purchase the item at the asking price. You can also send us a personal check (which will need to clear before shipping), certified check, money order, or bank wire transfer. International clients without access to PayPal should use a bank wire transfer. 

If you’re picking up an item, we do not accept PayPal. You must pay in person with a certified check, bank check, or wire transfer. If you make a PayPal payment and are picking up the item, your PayPal payment will be returned. 

TRADE IN POLICY:

We accept trade-ins of equal or lesser value under certain conditions. Simply click here to submit your gear for full consideration. We will only consider high-end equipment from mainstream manufacturers such as McIntosh, Mark Levinson, Audio Research, Krell, etc. and will typically pass on displays, projectors, receivers, dated surround processors, and mid-fi equipment of any type. We will offer a fair value for your equipment, but keep in mind we’re running a business and will need to be able to resell the equipment at a profit after investing a great deal of time and resources in testing, certifying, repairing, cleaning, and packaging the incoming equipment. If you’re looking for top dollar, we suggest selling direct on your own.

SELL US YOUR GEAR (Working or Broken):

We’ll also purchase your used or broken gear and arrange pickup if you’re in our local market. Simply click here to submit your gear for full consideration.

SCHEDULING AN APPOINTMENT:                                                                                                     

We are currently operating from our shop inside our dedicated building in Glen Rock, NJ. You’re welcome to make an appointment if there’s a piece of equipment you’d like to see in operation before or after purchase. We have several well-equipped and dedicated listening areas, plus a dedicated listening studio with tons of equipment of all makes and models. We’re not a store, so please don’t make an appointment if you’re just curious as to how a speaker or piece of equipment sounds. In essence - no tire kickers please.

You can call or text 201-879-0000 with any questions or to schedule an appointment. We can also arrange to install, calibrate, and tune your newly purchased gear in your listening room if you’re local to our area. This is super useful when purchasing large speakers or heavy amplifiers. It’s also great for ensuring your new turntable is setup correctly in its final resting place.

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