Neupert Hass Harpsichord
The Neupert Hass is a concert harpsichord with a 16′ register, based on the 1734 double-manual harpsichord by the Hamburg master Hieronymus Albrecht Hass. The 16′ register on the lower manual adds a deep sound an octave lower, while the 4′ transmission allows the 4′ register to be used on both manuals.
Original Model
Hieronymus Albrecht Hass, Hamburg 1734. The original instrument is in a museum collection in Brussels.
Keyboard & Registers
| Compass | F1–f3 (5 octaves) |
|---|---|
| Lower manual | 8′ I, 4′, 16′, lute (16′) |
| Upper manual | 8′ II, lute (8′ II) |
| Coupler | Manual coupler, 4′ transmission |
| Transposing | Standard (a1 = 440/415 Hz) |
| Keys | Naturals ebony, sharps topped with bone |
| Action | Wooden jacks, Delrin plectra |
Dimensions
| Length | 255 cm |
|---|---|
| Width | 94 cm |
| Net weight | 76 kg |
Options
| Optional equipment | Lid painting, fitted cover and bench |
|---|
Neupert Hass at Kuğu Müzik
Kuğu Müzik is the authorised J.C. Neupert dealer in Türkiye. The Neupert Hass is available to order; we can decide on the finish, colour and optional equipment together before ordering.
Frequently Asked Questions
Why is the 16′ register important?
Musicological research shows that Johann Sebastian Bach wanted a harpsichord with a 16′ register for chamber music. In line with this performance practice, Neupert developed a new 16′ harpsichord within the historical tradition and chose the harpsichord of Bach’s contemporary Hass as its model.
Can an echo effect be produced on the Hass?
Yes. A distinct echo effect can be achieved by playing the lower manual with all registers while using only the 8′ II register on the upper manual.
How does the Hass differ from the original?
Staying true to the essence of the original design, Neupert extended the compass to F1–f3, i.e. five octaves, and added an extra coupler that lets the 4′ register be played on both manuals.
How can I buy a Neupert Hass in Türkiye?
The Neupert Hass is built to order in Neupert’s workshop near Bamberg and brought to Türkiye through Kuğu Müzik. For delivery times and options, get in touch with us.
Other Neupert Harpsichords
For all harpsichord models, see the Neupert harpsichords page; for spinets, clavichords and fortepianos, see the Neupert page.
Source: J.C. Neupert – Harpsichord Hass


