The BHK Signature 250 is a stereo power amplifier by PS Audio that delivers Gain 30.5dB. 500W into 4 ohms.. It was released in 2016. It is a 2-channel design using a Class A/B output stage. The BHK Signature 250 is a hybrid, with vacuum tubes in the preamplifier stage feeding a solid-state output. Speakers connect via binding posts. The PS Audio BHK Signature 250 has an MSRP of $4,249.
There are 10 PS Audio amplifiers in our database. Below you can see the main specs of these amps.
PS Audio Power Amplifier Series
Performance Specs
One of the most important factors when deciding on an integrated amplifier is its power ratings and compatibility with your speaker's impedance requirements. The PS Audio BHK Signature 250 is rated at 250 watts RMS into 8-ohms. PS Audio provides this wattage at a THD (Total Harmonic Distortion) of under 0.01% at 1kHz, 1W into 8 ohms which is an important indicator of distortion at the given values (lower THD is better).
Here are the main highlights of its performance specs:
- 250 watts into 8-ohms at under 0.01% at 1kHz, 1W into 8 ohms
- 500 watts into 4-ohms
- 85dB Signal to Noise Ratio
How loud will 250 watts actually play in your room? →
Which speakers suit the PS Audio BHK Signature 250?
250 W into 8 ohms, 500 W into 4.
We rank every passive speaker we cover against it on power, impedance safety and current
delivery.
Need more power?
PS Audio BHK Signature 250 is rated at 250 watts into 8 ohms, which puts it in our Over 180 watts band. That is the top band we cover, so there is no step up from here - if it is not enough, the answer is more sensitive speakers or a smaller room, not more watts.
When pairing the PS Audio BHK Signature 250 with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels.
Operating your amp outside of this max range may damage the speakers.
What size of room is the PS Audio BHK Signature 250 Amplifier good for?
An essential deciding factor is the size of the room in which you intend to employ the PS Audio BHK Signature 250 amplifier. Here, taking into account its maximum power parameters, we analyzed its applicability to various size environments:
| Listening Environment |
Suitability |
| Near-field | Are you nuts? |
| Small Room | Bad |
| Mid-size Room | Poor |
| Large Room | Good |
| Very Large Room | Good |
Inputs and Outputs
Besides the performance specs of the PS Audio BHK Signature 250, the next important feature set that you have to evaluate is the input and output selections that it offers.
PS Audio BHK Signature 250 has total of 1 Analog inputs .
Inputs
- Total Number of Analog Inputs: 1
Outputs
Bluetooth Connectivity
PS Audio BHK Signature 250 doesn't have bluetooth connectivity feature. In order to stream your music via bluetooth, the easiest way is to connect an external bluetooth receiver to your PS Audio BHK Signature 250. Two bluetooth receivers that we recommend are the
iFi Zen Blue V2 and the
Audioengine B1.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
Phono Input
PS Audio BHK Signature 250 doesn't have a phono input so in order to play your vinyl albums, PS Audio BHK Signature 250 has to be paired with a Phono Preamp that is MM (Moving Magnet) or/and MC (Moving COil) depending on your cartridge type.
Balanced connections
PS Audio BHK Signature 250 has a balanced XLR input. A balanced cable carries the signal twice, on two conductors of opposite polarity. Interference picked up along the way lands on both equally and cancels when the two are recombined at the far end, so the longer the cable run and the noisier the surroundings, the more the connection is worth. Whether a balanced connection also yields more power depends on how the amplifier is built inside - some are balanced end to end, others convert to single-ended internally and deliver the same power either way, so it is worth reading the maker's own wording rather than assuming.
PS Audio BHK Signature 250 Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓Power nearly doubles into a harder load, 250 watts into 8 ohms rising to 500 into 4, which points to a power supply with real current in reserve.
- ✓250 watts per channel into 8 ohms is more than most rooms and most speakers will ever ask for.
- ✓Hybrid design, with a valve stage ahead of a solid-state output section.
- ✓Distortion is specified at 0.01%, an order of magnitude below what is generally held to be audible.
- ✓Balanced XLR inputs, worth having on a long cable run.
- ✓Detachable mains lead (IEC).
- ✗A power amplifier has no volume control and no input selection - it needs a preamplifier, or a source with a variable output, in front of it.
- ✗It weighs 37.6kg - check the shelf, and plan on a second pair of hands.
PS Audio BHK Signature 250 External Dimensions and Weight
PS Audio BHK Signature 250 has external dimensions of (H x W x D) 8.70 x 17.10 x 14.00 inch (221 x 434.3 x 355.6 mm ). The unit weighs
37.6 kg (82.9 lbs).
Base Surface Area
Base surface area of an integrated amplifier may become an important decision factor when the space in your room or desk is limited.
The base area of the PS Audio BHK Signature 250 is approximately 1544.4cm2 / 239.4inch2.
- Width: 434.3mm (17.10")
- Height: 221.0mm (8.70")
- Depth: 355.6mm (14.00")
- Weight: 37.6 kg (82.9 lbs)
- Base Surface Area: ~1544.4cm2 / 239.4inch2
- Volume: ~34.1 liter / 9.0 gallon
Available colors
PS Audio BHK Signature 250 is available in Black and Silver color options.
Official Product Page
Official manufacturer's product page for the PS Audio BHK Signature 250 Integrated Amplifier can be found below:
Official Product Page for PS Audio BHK Signature 250
Warranty
3 Years of parts warranty and 3 Years of labor warranty is generally provided for the PS Audio BHK Signature 250 by the manufacturer.
| General |
| Brand |
PS Audio |
| Full Model Name |
PS Audio BHK Signature 250 |
| Release Date |
2016 |
| Amplifier Type |
Power Amplifier |
| Number of Channels |
2 |
| Amp Class |
Class A/B |
| Amplifier Technology |
Hybrid (vacuum tube and solid state) |
| Performance |
| Watts RMS per Channel into 8-ohms |
250 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
500 watts |
| Frequency Bandwidth |
|
| THD |
under 0.01% at 1kHz, 1W into 8 ohms |
| Minimum Impedance |
|
| Signal to Noise Ratio |
85 dB |
| Digital Music |
| Built-in DAC |
No |
| Bluetooth |
No |
| WiFi |
No |
| CONNECTIONS |
| Total Analog Inputs |
1 |
| Phono Input |
No |
| Headphone Output |
No |
| Removable Power Cord |
IEC |
| Speaker Connectors |
Binding posts |
| PHYSICAL SPECS |
| Height |
221.0mm (8.70") |
| Width |
434.3mm (17.10") |
| Depth |
355.6mm (14.00") |
| Weight |
37.6 kg (82.9 lbs) |
| Available Colors |
Black, Silver |
| OTHER |
| Parts Warranty |
3 Years |
| Labor Warranty |
3 Years |
How much power does the PS Audio BHK Signature 250 have?
The PS Audio BHK Signature 250 delivers Gain 30.5dB. 500W into 4 ohms.. Its output almost doubles into 4 ohms, which points to a strong power supply that can hold its composure with demanding, low-impedance speakers.
Does the PS Audio BHK Signature 250 use vacuum tubes?
Partly. The PS Audio BHK Signature 250 is a hybrid - vacuum tubes in the input and driver stages feed a solid-state output stage, so it takes some of the character of a valve amplifier with the power and the load tolerance of a transistor one.
How long do the tubes in the PS Audio BHK Signature 250 last?
Output valves are a consumable. In normal domestic use a set lasts somewhere between about 2,000 and 5,000 hours - a few years for most people - and they degrade gradually rather than failing outright. Input and driver valves last far longer, often the life of the amplifier. Check the warranty card before you buy: valves are almost never covered by the amplifier's own parts warranty, and are usually warranted separately for 90 days to a year.
What amplifier class is the PS Audio BHK Signature 250?
The PS Audio BHK Signature 250 uses a Class A/B amplifier design. Class A/B is the traditional linear design: it runs warmer and is less efficient than Class D, but it is long valued for its natural, low-distortion sound.
Does the PS Audio BHK Signature 250 have a built-in DAC?
No. The PS Audio BHK Signature 250 has no built-in DAC, so a digital source such as a streamer or CD transport needs its own converter, or you connect it over analogue.
Can I connect a turntable to the PS Audio BHK Signature 250?
No. The PS Audio BHK Signature 250 has no phono input, so a turntable needs an external phono preamp (or a deck with one built in) before it can be connected.
Does the PS Audio BHK Signature 250 have Bluetooth?
No. The PS Audio BHK Signature 250 does not have Bluetooth built in; you would need an external Bluetooth receiver connected to one of its inputs.
Does the PS Audio BHK Signature 250 have a headphone output?
No. The PS Audio BHK Signature 250 does not have a headphone output, so headphone listening needs a separate headphone amplifier.
How much does the PS Audio BHK Signature 250 cost?
The PS Audio BHK Signature 250 has a manufacturer's list price (MSRP) of $4,249.
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