Can this amplifier be used with a turntable?

I have hooked this amp to a turntable, so yes.

Is it possible to drive several 8 ohm speakers in parallel so that the load is small?

when you have 2 sets of 8 ohm speakers connected to an amplifier, you have a 4 ohm load. 3 sets would be about 2.7 to 3 ohms, 4 sets of speakers would be 2 ohms, and so on.. rough values, since impedance is a variable thing depending on whats being played through the amp (speaker impedance is a nominal value, not really exact). the problem is, the lower total impedance allows the amplifier to generate more current internally than the amp is designed to deliver - and you would need it turned up a ways to drive that many speakers. reproducing low frequencies is problematic too, since with less impedance there is less "damping" or ability for the speaker to return to it's original state after it moves (mostly a problem with bigger speakers). but ultimately, the power supply or an output chip would likely fail at some point of extended use. 4 ohms is the practical limit, which is 2 pairs of 8 ohm speakers.

I have a set of bluetooth ear buds. Can I take sound from my tv through this transmitted to my buds via bluetooth

No, see my other answer, but an update, I now see the other device is now on sale so it is no longer more expensive than this device. I still had problems with connecting to bluetooth at times with the IMi device, but maybe I didn't understand the instruction. This device will do what you want, but doesn't have all the functions of this amplifier : 1Mii B06TX Bluetooth 5.0 Transmitter for TV to Wireless Headphone/Speaker, Bluetooth Adapter for TV w/Volume Control, AUX/RCA/Optical/Coaxial Audio I

I am hearing impaired but my wife is not. Can I use this amp to separately drive and control speakers and headphones?

The best solution for your suggestion is to use a separate headphone amp (mentioned in another answer), however, you can daisy chain the two components together so that your input source goes through the amp shown in the photo, then take a pair of patch cables and connect one end to the record output of the first amp and the other end of the patch cable to the input of the headphone amp. Your volume control will be totally independent and can have your headphones as loud as needed while the volume on the main amp used for the speakers is at your wife's listening preference. Remember, the connectors marked "output" will handle other amplifiers because that is a "pre-amp" output source. If the output says "speaker" then you should not connect another power amp to that connection because the second amp will be overdriven by the first amp, possibly causing damage to both.

Brand	Pyle
Manufacturer	PYLE HOME
Model	PTA4
Model Year	2011
Product Dimensions	13.69 x 21.01 x 6.91 cm; 1.59 kg
Item model number	PTA4
Compatible Devices	Smartphone, Tablet, Personal Computer, Game Console, Television, Amplifier, Speaker
Special Features	Built-In Bluetooth, FM Tuner, Subwoofer
Colour Screen	No
Audio Encoding	Stereo
Audio output mode	Stereo
Audio Output Type	Headphones, Speakers
Audio Wattage	240
Wattage	1.2E+2
Batteries Included	No
Batteries Required	No
Signal-to-noise ratio (dB)	81 dB
Connector Type	Auxiliary, RCA
Media Format	WMA
Does it contain liquid?	No
Includes Rechargeable Battery	No
Includes remote	No
Manufacturer	PYLE HOME
Country of Origin	USA
Item Weight	1 kg 590 g

Home Home Audio Power Amplifier System - 2X120W Mini Dual Channel Mixer Surround Sound Stereo Receiver Box W/ Rca, Aux, Mic Input - For Amplified Speakers, Pa, Cd Player, Theater - Pyle Pta4

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